Marta Sofia dos Anjos Ferreira
@ua.pt
Universidade de Aveiro
Scopus Publications
- Thin-wall silica capillary-based multimode interferometer for high-sensitivity refractive index measurement
Mariline M. Costa, Ana I. Freitas, Jörg Bierlich, Marta S. Ferreira
Optics Letters, 2026
A novel, to the best of our knowledge, sensor based on the controlled collapse of the hollow core of a thin-wall silica capillary tube (SCT) spliced between two single-mode fibers is proposed for the monitoring of external liquid refractive index (RI). The conical shape of the splice excites multimodal interference in the cladding of the SCT. For a range of 1.333–1.341 RIU, when isolating the dominant frequencies, a maximum sensitivity of 4421 nm/RIU is achieved, which is an outstanding result for an all-silica-based device in this RI range. The low-cost one‑step fabrication process, in conjunction with the ultrahigh sensitivity, displays remarkable potential for real‑time detection in chemical processing applications, where precise RI monitoring is required. - Tunable Hybrid Antiresonance and Mach–Zehnder Interferometer Based on Silica Capillary for Dual-Parameter Sensing
Mariline M. Costa, Ana I. Freitas, Jörg Bierlich, Marta S. Ferreira
Photonics, 2026
An all-silica-based sensor comprising a section of capillary fiber spliced between two singlemode fibers (SMFs) is proposed for the simultaneous measurement of strain and temperature. By intentionally introducing a controlled transversal offset at one of the fusion splice points, core and cladding modes are simultaneously excited in the capillary, enabling the coexistence of two distinct guiding mechanisms within the sensor. The resulting spectral response exhibits two superimposed modulations associated with antiresonance (AR) guidance and a Mach–Zehnder interferometer (MZI). A comprehensive numerical model is developed to describe the interaction between the two mechanisms as a function of the offset. The model is experimentally validated through characterization of the spectral response for increasing offsets, confirming the coexistence and evolution of the AR and MZI components through free spectral range and visibility analysis. The two interference components allow for independent tracking of their wavelength shifts, enabling simultaneous strain and temperature measurements with estimated resolutions of 11.9 με and 0.45 °C, respectively. Owing to the single-element, one-step fabrication process, and the entirely silica-based configuration, the proposed sensor offers a compact and cost-effective solution for localized multiparameter monitoring. - Impact of different chitosan concentrations on multimode optical fiber sensors for temperature and relative humidity monitoring
Tiago Amaral, Ana I Freitas, João M Leça, Marta S Ferreira, Micael Nascimento
Measurement Science and Technology, 2026
In this work, we propose a fiber optic modal sensor based on a coreless fiber coated with a thin film of chitosan for monitoring relative humidity (RH) and temperature. The effect of different chitosan concentrations (1.0%, 1.5%, and 2.0%(w/v)) was studied by comparing the obtained sensitivities towards sensor optimization. After performing a temperature characterization, an exponential wavelength shift behavior was found, and two approximately linear regimes were identified. An increase of roughly 5 times in the temperature sensitivity of both regimes was observed with the increase in the chitosan concentration, from 1.0% to 2.0%, resulting in a maximum sensitivity of −304.14 pm °C −1 , corresponding to the 2.0% concentration and the second regime. From the RH characterization, the sensor sensitivity also increases with the chitosan concentration, and a polynomial response of the sensors was found and divided into two linear regimes. A maximum sensitivity of −2308.88 pm/%RH resulted for the 2.0% concentration in the second linear regime, corresponding to an increase of approximately 32 times when comparing with the sensitivity obtained by the 1.0% concentration. From these findings, it was concluded that the chitosan concentration plays a pivotal role in a significant sensor improvement, which may translate into better and more accurate measurements. - Quantitative Analysis of Bisphenol A in Commercial Beverages
Ana I. Freitas, Marta S. Ferreira, José C. Marques
Molecules, 2026
Bisphenol A (BPA) is a widely used synthetic compound and a well-known endocrine-disrupting chemical that has been linked to a range of health issues and poses significant public health concern. Despite efforts to regulate its use in food-contact materials, BPA remains a significant food contaminant due to its widespread use and its ability to leach into consumer products. Therefore, it is paramount to continue monitoring this contaminant in the food supply chain. This work aims to assess human exposure by investigating the presence of BPA in beverages, including iced teas, fruit juices, water, and carbonated drinks. The analysis by liquid chromatography coupled with fluorescence detection reveals BPA above the limit of quantification in about 30% of samples, with concentrations ranging from 0.15 to 0.94 ng/mL. The highest detection frequencies are observed in iced teas and canned beverages, while water and glass-bottled drinks have the lowest BPA detection frequencies. In the future, we aim to use the results from this study as a reference to optimize a chitosan-coated optical fiber sensor as a possible alternative for rapid BPA detection. A preliminary test showed that the sensor can discriminate between BPA concentrations of 10–100 µg/mL in a real food matrix. - Detection of Bisphenol a by a Chitosan-Coated Microstructured Optical Fiber Sensor
Ana I. Freitas, Jörg Bierlich, José C. Marques, Marta S. Ferreira
Photonics, 2026
Bisphenol A (BPA) is an endocrine disruptor found in food-contact materials and, even at very low concentrations, poses a serious risk to human health. Therefore, its presence in food should be monitored. Optical fiber sensors are a highly advantageous option for detecting chemical contaminants; however, due to the low concentrations at which these compounds are found, the surface needs to be modified to promote interaction with the target compound. In this work, we present an optical fiber sensor incorporating a microstructured fiber that is sensitive to external media and, therefore, to refractive index variations. To increase sensitivity, the sensor was coated with a chitosan film, a polysaccharide with high biosorbent ability that has been proposed as an effective adsorbent for several contaminants, including BPA. The sensor was then characterized by its response to variations in BPA concentration from 0 to 0.1 mg/mL. The chitosan-coated sensor exhibited a sensitivity over three times higher than that of the uncoated sensor, with a resolution of 9.98 × 10−4 mg/mL. Washing assays revealed that, although the coating cannot be fully regenerated, the sensor can be reused without requiring a complex or time-consuming procedure. - 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis
Diana Pereira, Torsten Wieduwilt, Walter Hauswald, Matthias Zeisberger, Marta S. Ferreira, Markus A. Schmidt
Light Science and Applications, 2025
The integration of functional components into flexible photonic environments is a critical area of research in integrated photonics and is essential for high-precision sensing. This work presents a novel concept of interfacing square-core hollow-core waveguides with commercially available optical fibers using 3D nanoprinting, and demonstrates its practical relevance through a nanoscience-based characterization technique. In detail, this innovative concept results in a monolithic, fully fiber-integrated device with key advantages such as alignment-free operation, high-purity fundamental mode excitation, full polarization control, and a unique handling flexibility. For the first time, the application potential of a fiber-interfaced waveguide in nanoscale analysis is demonstrated by performing nanoparticle-tracking-analysis experiments. These experiments involve the tracking and analysis of individual gold nanospheres diffusing in the hollow core waveguide, enabled by nearly aberration-free imaging, extended observation times, and homogeneous light-line illumination. The study comprehensively covers design strategy, experimental implementation, key principles, optical characterization, and practical applications. The fiber-interfaced hollow-core waveguide concept offers significant potential for applications in bioanalytics, environmental sciences, quantum technologies, optical manipulation, and life sciences. It also paves the way for the development of novel all-fiber devices that exploit enhanced light-matter interaction in a monolithic form suitable for flexible and remote applications. - On-Fiber 3D Nanoprinted Antiresonant Hollow-Core Waveguides for Integrated Optofluidics
Diana Pereira, Torsten Wieduwilt, Marta S. Ferreira, Markus A. Schmidt
ACS Photonics, 2025
Guiding light in hollow cores represents a major research direction in modern fiber optics, enabling numerous transformative applications. However, structural and fabrication constraints have hindered the implementation of such waveguides in planar platforms, limiting their wide-range application. In this study, we present a new class of high-quality, fiber-integrated hollow-core waveguide that directly adapt the antiresonant guiding mechanism from fiber technology to planar waveguide technology using 3D nanoprinting. By directly fabricating record-high aspect ratio waveguides on fiber end faces, a seamless photonic integration with enhanced optical performance, including polarization-independent transmission and substantially reduced losses is achieved. The approach is supported by strong agreement between experimental results, numerical simulations, and analytical modeling. The relevance of the fiber-inspired platform in the context of optofluidics has been demonstrated by high-precision refractive index sensing and dye-related absorption spectroscopy. These results highlight the potential of the approach to serve as a compact, versatile platform for advanced fiber-based systems in biomedicine, quantum optics, and environmental monitoring. - Long-Term Stability Evaluation of Optical Fiber Sensors Immersed in LiPF6 Electrolyte
Lucca C. Matuck, Luís F. B. Fontes, Nuno F. Santos, João L. Pinto, Marta S. Ferreira, Olivier Raccurt, Micael S. Nascimento
Batteries and Supercaps, 2025
Stability tests on silica optical fiber sensors (fiber Bragg gratings) within the lithium–ion battery (LiB) electrolyte are conducted, revealing their robustness over 24 months, only subject to variations in ambient temperature. Recurrent chemical analyses based on scanning electron microscopy and energy‐dispersive X‐ray spectroscopy characterizations demonstrate the formation of deposits (LiPF6 crystals) from electrolyte decomposition in the fiber surfaces over time. However, no silica material degradation is observed. The performance and accuracy of the optical fiber sensors are tested before and after aging, revealing an insignificant variation in their thermal sensitivity, with values within the measurement error. This research demonstrates the durability and the potential of this advanced sensing technology in the field of LiB monitoring, making a substantial contribution to the domain of sustainable energy solutions. It offers invaluable insights for enhancing LiB safety, reliability, and overall performance, ultimately advancing the integration of LiBs within our evolving sustainable energy landscape. - On-chip hollow-core waveguides with integrated anti-resonant channels, enabled by 3D nanoprinting
Diana Pereira, Marta S. Ferreira, Lothar Wondraczek, Markus A. Schmidt
Optics Express, 2025
We present a novel on-chip hollow-core waveguide design featuring a three-channel architecture that operates via the anti-resonant effect. The design incorporates symmetrically arranged thin membranes that create an enhanced reflective environment, achieving superior waveguiding performance over conventional approaches. Through numerical simulations and experimental validation using 3D vertical nanoprinting, we demonstrate low optical losses, smooth spectral transmission, and suppression of structure-induced birefringence while additionally revealing an interchannel coupling mechanism arising from the multi-channel architecture. Our findings establish a promising platform for applications in bioanalytics, quantum technologies, and life sciences while offering new possibilities for exploring complex cladding structures in hollow-core fiber design. - A Novel Fiber-Optical Fabry–Perot Microtip Sensor for 2-Propanol
João M. Leça, Paulo Antunes, Florinda M. Costa, António J. S. Teixeira, Marta S. Ferreira
Sensors, 2025
2-Propanol in the gaseous phase of clinical samples can serve as a biomarker for disease diagnosis. In this context, a novel fiber-optic Fabry–Perot (FP) interferometric sensor with a microtip structure was developed using the light-guided induced polymerization technique. The optical fiber sensor (OFS) with the best performance, measuring approximately 15 µm in length, exhibited good sensitivity to 2-propanol, with a response of −71.1 ± 2.1 pm/ppm. Additionally, it demonstrated good stability, with a maximum standard deviation of 0.15 nm and an estimated resolution of 3.18 ppm. The good sensitivity and ease of fabrication of this OFS highlight its potential for biomedical applications, particularly in non-invasive disease detection, given the role of 2-propanol as a biomarker for various health conditions. - Corrigendum to “Towards smart and secure batteries: Linking pressure and temperature profiles with electrochemical behavior through hybrid optical fiber sensors” [Chem. Eng. J. 500 (2024) 156806] (Chemical Engineering Journal (2024) 500, (S1385894724082974), (10.1016/j.cej.2024.156806))
Lucca Matuck, João P. Santos, Fábio Freitas, Luís B. Fontes, Jörg Bierlich, Sylvie Geniès, João L. Pinto, Marta S. Ferreira, Olivier Raccurt, Micael Nascimento
Chemical Engineering Journal, 2025 - Pressure and Temperature Sensing with 3D Nanoprinted Structure Integrated on Optical Fiber
Diana Pereira, Marta S. Ferreira, Markus A. Schmidt
Proceedings of SPIE the International Society for Optical Engineering, 2025 - Mind the splice: ultra-high sensitivity refractometer based on thin-wall silica capillary tube
Mariline Costa, Ana I. Freitas, Jörg Bierlich, Marta S. Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2025 - Hybrid sensor based on a single segment of hollow-core microstructured optical fiber for simultaneous measurement of pressure and temperature
Carolina Neves, Jörg Bierlich, Micael Nascimento, Marta S. Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2025 - Decoupling temperature and humidity with chitosan-coated tilted FBG sensor
Tiago Amaral, Ana I. Freitas, João M. Leça, Marta S. Ferreira, Micael S. Nascimento
Proceedings of SPIE the International Society for Optical Engineering, 2025 - Fiber-Interfaced Nanoprinted Hollow-Core Waveguide: A Novel Platform for Nanoparticle Tracking
European Conference on Lasers and Electro Optics Proceedings Conference on Lasers and Electro Optics Europe CLEO Europe 2025 and European Quantum Electronics Conference Eqec 2025, 2025 - Fiber-Interfaced Nanoprinted Hollow-Core Waveguide: A Novel Platform for Nanoparticle Tracking
Diana Pereira, Torsten Wieduwilt, Walter Hauswald, Matthias Zeisberger, Marta S. Ferreira, Markus A. Schmidt
2025 Conference on Lasers and Electro Optics Europe and European Quantum Electronics Conference CLEO Europe Eqec 2025, 2025 - Hybrid Sensor Based on Fabry-Perot Interferometer for the Simultaneous Measurement of Pressure, Temperature, and Curvature
João P. Santos, Diana Pereira, Raquel Augusto, Jörg Bierlich, Micael Nascimento, Marta S. Ferreira
Journal of Lightwave Technology, 2025 - Exploring the use of a virtual reference spectrum in the Vernier effect
Daniela F. Santos, Gil A. Gonçalves, Paula A. Marques, Maria F. Domingues, Paulo F. Antunes, Marta S. Ferreira, Nélia J. Alberto
Proceedings of SPIE the International Society for Optical Engineering, 2025 - Towards smart and secure batteries: Linking pressure and temperature profiles with electrochemical behavior through hybrid optical fiber sensors
Lucca Matuck, João P. Santos, Fábio Freitas, Luís B. Fontes, Jörg Bierlich, Sylvie Geniès, João L. Pinto, Marta S. Ferreira, Olivier Raccurt, Micael Nascimento
Chemical Engineering Journal, 2024 - Spatially Controlled Phase Modulation - Selective Higher-Order Mode Excitation in 3D Nanoprinted on-Chip Hollow-Core Waveguides
Diana Pereira, Marta S. Ferreira, Matthias Zeisberger, Markus A. Schmidt
ACS Photonics, 2024 - Revealing a Correlation between Physical Parameters and Differential Voltage Analysis of a Commercial Li-Ion Battery Based on Fiber Optic Sensors
Lucca Matuck, Marta S. Ferreira, Micael Nascimento
Batteries, 2024 - Simultaneous measurement of refractive index and temperature using a balloon-type optical fiber sensor
Ana I. Freitas, Diana Pereira, Jörg Bierlich, José C. Marques, Marta S. Ferreira
Optik, 2024 - High-sensitivity refractive index multimode fibre sensor based on a silica capillary
Ana Isabel Freitas, Jörg Bierlich, Marta S. Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2024 - Molecular imprinted polymer-coated optical fiber sensor for the quantification of 2-propanol
João M. Leça, Mariana C. Oliveira, Marta S. Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2024 - Internal monitorization and evaluation of specific 18650 Li-ion cell parameters by using tailored optical fiber sensors
Lucca Matuck, Marta S. Ferreira, Jörg Bierlich, Micael Nascimento
Proceedings of SPIE the International Society for Optical Engineering, 2024 - Cascaded Fabry-Perot fiber sensor based on silica capillary with PMMA for the detection of volatile organic compounds
Ana Almeida, João M. Leça, Jörg Bierlich, Marta S. Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2024 - Temperature measurement with optical fiber Mach-Zehnder interferometer combined with Vernier effect
Patrícia Flor, Ana Freitas, Jörg Bierlich, Paulo Antunes, Marta S. Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2024 - A Silica Capillary-Based Sensor with Access Channels for the Simultaneous Measurement of Pressure and Temperature
João P. Santos, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Photonics, 2023 - Multiparameter sensor based on hollow square core optical fiber
João P. Santos, Diana Pereira, Jörg Bierlich, Jens Kobelke, Micael Nascimento, Marta Ferreira
Proceedings of SPIE the International Society for Optical Engineering, 2023 - Simultaneous measurement of strain, curvature, and temperature using a hollow square core fiber
Diana Pereira, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Optics and Laser Technology, 2022 - Real-Time Measurement of Refractive Index Using 3D-Printed Optofluidic Fiber Sensor
João M. Leça, Yannis Magalhães, Paulo Antunes, Vanda Pereira, Marta S. Ferreira
Sensors, 2022 - Simultaneous measurement of displacement and temperature using a balloon-like hybrid fiber sensor
João P. Santos, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Optics Letters, 2022 - Optical Fiber Sensor for Monitoring the Evaporation of Ethanol–Water Mixtures
Diana Pereira, Jörg Bierlich, Jens Kobelke, Vanda Pereira, Marta S. Ferreira
Sensors, 2022 - Hybrid sensor based on a hollow square core fiber for temperature independent refractive index detection
Diana Pereira, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Optics Express, 2022 - Capillary based hybrid fiber sensor in a balloon-like shape for simultaneous measurement of displacement and temperature
João P Santos, Jörg Bierlich, Jens Kobelke, Marta S Ferreira
Journal of Physics Conference Series, 2022 - Hollow square core fiber sensor for physical parameters measurement
Diana Pereira, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Journal of Physics Conference Series, 2022 - Optofluidic Fabry-Perot interferometric sensor for the real-time measurement of refractive index
JM Leça, Y Magalhães, P Antunes, V Pereira, MS Ferreira
Journal of Physics Conference Series, 2022 - Fabry-Perot Interferometer Based on Suspended Core Fiber for Detection of Gaseous Ethanol
Tiago Paixão, Ana Sofia Nunes, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Applied Sciences Switzerland, 2022 - Innovative hybrid optical sensing design to simultaneously discriminate pressure and temperature
Fábio Freitas, Lucca Matuck, Jörg Bierlich, Marta Ferreira, Carlos Marques, Micael Nascimento
Journal of Physics Conference Series, 2022 - Double antiresonance fiber sensor for the simultaneous measurement of curvature and temperature
Diana Pereira, Jörg Bierlich, Jens Kobelke, Marta S. Ferreira
Sensors, 2021 - Negative curvature hollow core fiber sensor for the measurement of strain and temperature
Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, João L. Pinto, Katrin Wondraczek
Optics Express, 2021 - Monitoring evaporation of ethanol-water mixtures using a hollow square core fiber
Optics Infobase Conference Papers, 2021 - Hollow microsphere combined with optical harmonic Vernier effect for strain and temperature discrimination
André D. Gomes, Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, Manfred Rothhardt, Hartmut Bartelt, Orlando Frazão
Optics and Laser Technology, 2020 - Challenging the Limits of Interferometric Fiber Sensor Sensitivity with the Optical Harmonic Vernier Effect
Optics Infobase Conference Papers, 2020 - Reliability and NDT Methods
Telmo G. Santos, J. P. Oliveira, Miguel A. Machado, Patrick L. Inácio, Valdemar R. Duarte, Tiago A. Rodrigues, Rui A. Santos, Carlos Simão, Marta Carvalho, Ana Martins, Micael Nascimento, Susana Novais, Marta S. Ferreira, João L. Pinto, Francisco B. Fernandes, Edgar Camacho, Júlio Viana, R. M. Miranda
Advanced Structured Materials, 2020 - Optical harmonic vernier effect: A new tool for high performance interferometric fibre sensors
André D. Gomes, Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, Manfred Rothhardt, Hartmut Bartelt, Orlando Frazão
Sensors Switzerland, 2019 - Temperature fiber sensing of Li-ion batteries under different environmental and operating conditions
Micael Nascimento, Marta S. Ferreira, João L. Pinto
Applied Thermal Engineering, 2019 - Internal strain and temperature discrimination with optical fiber hybrid sensors in Li-ion batteries
Micael Nascimento, Susana Novais, Markus S. Ding, Marta S. Ferreira, Stephan Koch, Stefano Passerini, João L. Pinto
Journal of Power Sources, 2019 - Humidity sensor based on optical fiber coated with agarose gel
Susana Novais, Marta S. Ferreira, João L. Pinto
Proceedings of SPIE the International Society for Optical Engineering, 2019 - Simultaneous measurement of refractive index and temperature using a double antiresonant hollow core fiber
Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, Joao Pinto, Katrin Wondraczek
Proceedings of SPIE the International Society for Optical Engineering, 2019 - Hybrid sensor based on microstructured hollow-core fiber for simultaneous measurement of strain and temperature
Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, João L. Pinto, Kay Schuster, Katrin Wondraczek
Proceedings of SPIE the International Society for Optical Engineering, 2019 - Relative humidity fiber sensor based on multimode interferometer coated with agarose-gel
Susana Novais, Marta Ferreira, João Pinto
Coatings, 2018 - Thermal mapping of a lithium polymer batteries pack with FBGs network
Micael Nascimento, Tiago Paixão, Marta Ferreira, João Pinto
Batteries, 2018 - Determination of thermo-optic coefficient of ethanol-water mixtures with optical fiber tip sensor
Susana Novais, Marta S. Ferreira, João L. Pinto
Optical Fiber Technology, 2018 - Optical Fiber Tip Sensor for the Measurement of Glucose Aqueous Solutions
Susana Novais, Catarina I. A. Ferreira, Marta S. Ferreira, Joao L. Pinto
IEEE Photonics Journal, 2018 - Simultaneous sensing of temperature and bi-directional strain in a prismatic li-ion battery
Micael Nascimento, Marta Ferreira, João Pinto
Batteries, 2018 - Optical Fiber Fabry-Perot Tip Sensor for Detection of Water-Glycerin Mixtures
Susana Novais, Marta S. Ferreira, Joao L. Pinto
Journal of Lightwave Technology, 2018 - Strain and temperature discrimination in operando Li-ion polymer batteries
Micael Nascimento, Marta S. Ferreira, João L. Pinto
Optics Infobase Conference Papers, 2018 - Optical fiber tip sensor for determining the thermo-optic coefficient of ethanol-water mixtures
Marta S. Ferreira, Susana Novais, João L. Pinto
Optics Infobase Conference Papers, 2018 - Fabry-Perot cavity based on air bubble in multimode fiber for sensing applications
Susana Novais, Marta S. Ferreira, João L. Pinto
Proceedings of SPIE the International Society for Optical Engineering, 2018 - Glucose measurements with optical fiber sensor based on coreless silica fiber
Susana Novais, Catarina I. A. Ferreira, Marta S. Ferreira, João L. Pinto
Optics Infobase Conference Papers, 2018 - Real time thermal monitoring of lithium batteries with fiber sensors and thermocouples: A comparative study
Micael Nascimento, Marta S. Ferreira, João L. Pinto
Measurement Journal of the International Measurement Confederation, 2017 - Lateral Load Sensing with an Optical Fiber Inline Microcavity
Susana Novais, Marta S. Ferreira, Joao L. Pinto
IEEE Photonics Technology Letters, 2017 - Impact of different environmental conditions on lithium-ion batteries performance through the thermal monitoring with fiber sensors
Micael S. Nascimento, Marta S. Ferreira, Joao L. Pinto
Proceedings of SPIE the International Society for Optical Engineering, 2017 - Fabry-Perot cavity based on air bubble for high sensitivity lateral load and strain measurements
Susana Novais, Marta S. Ferreira, João L. Pinto
Proceedings of SPIE the International Society for Optical Engineering, 2017 - Fabry-Perot interferometer based on array of microspheres for temperature sensing
Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, José L. Santos, Orlando Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2017 - Fiber Fabry-Perot interferometer for curvature sensing
Catarina S. Monteiro, Marta S. Ferreira, Susana O. Silva, Jens Kobelke, Kay Schuster, Jörg Bierlich, Orlando Frazão
Photonic Sensors, 2016 - Curvature sensor based on a Fabry-Perot interferometer
Catarina Monteiro, Marta S. Ferreira, Jens Kobelke, Kay Schuster, Jörg Bierlich, Orlando Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2016 - Fiber Loop Mirror Sensors Interrogated and Multiplexed by OTDR
Maria Thereza Miranda Rocco Giraldi, Cindy Stella Fernandes, Marta S. Ferreira, Marco Jose de Sousa, Pedro A. S. Jorge, Joao Crisostomo Weyl Albuquerque Costa, Jose Luis Campos Oliveira Santos, Orlando Frazao
Journal of Lightwave Technology, 2015 - Fabry-Perot cavity based on silica tube for strain sensing at high temperatures
Marta S. Ferreira, Paulo Roriz, Jörg Bierlich, Jens Kobelke, Katrin Wondraczek, Claudia Aichele, Kay Schuster, José L. Santos, Orlando Frazão
Optics Express, 2015 - Fiber optic displacement sensor based on a double-reflecting OTDR technique
Maria Thereza M. Rocco Giraldi, Cindy S. Fernandes, Marta S. Ferreira, Marco J. de Sousa, Pedro Jorge, João C. W. A. Costa, José L. Santos, Orlando Frazão
Microwave and Optical Technology Letters, 2015 - Measuring strain at extreme temperatures with a Fabry-Perot optical fiber sensor
Marta S. Ferreira, Paulo Roriz, Jörg Bierlich, Jens Kobelke, Katrin Wondraczek, Claudia Aichele, Kay Schuster, José L. Santos, Orlando Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2015 - A Fabry-Perot sensor prototype for low-pressure measurements
P. Roriz, M. S. Ferreira, K. Schuster, J. Kobelke, O. Frazão
Microwave and Optical Technology Letters, 2014 - Interrogation and multiplexing system for fiber loop mirror coupled intensity sensors using OTDR
Maria Thereza M. Rocco Giraldi, Cindy S. Fernandes, Marta S. Ferreira, Marco J. de Sousa, Pedro Jorge, João C. W. A. Costa, José L. Santos, Orlando Frazão
Microwave and Optical Technology Letters, 2014 - Silica microspheres array strain sensor
Marta S. Ferreira, José L. Santos, Orlando Frazão
Optics Letters, 2014 - Optical phase refractometer based on post-processed interferometric tip sensors
Marta S. Ferreira, Jorg Bierlich, Sonja Unger, Kay Schuster, Jose L. Santos, Orlando Frazao
Journal of Lightwave Technology, 2014 - Phase-shifted fiber Bragg grating for strain measurement at extreme conditions
Marta S. Ferreira, Graham C. B. Lee, José L. Santos, Kate Sugden, Orlando Frazão
Optical Sensors 2014, 2014 - Post-processing fibers for sensing applications
O. Frazão, M. S. Ferreira, R. M. André, S. O. Silva, M. B. Marques, José L. Santos
Optical Sensors 2014, 2014 - Ultra-high sensitive strain sensor based on post-processed optical fiber Bragg grating
Marta Ferreira, Jörg Bierlich, Martin Becker, Kay Schuster, José Santos, Orlando Frazão
Fibers, 2014 - New silica microspheres array sensor
Marta S. Ferreira, José L. Santos, Orlando Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2014 - Interrogation system for fiber loop mirror sensors using OTDR
Maria Thereza M. Rocco Giraldi, Cindy S. Fernandes, Marta S. Ferreira, João C. W. Costa, José L. Santos, Orlando Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2014 - Figure-of-eight cavity fiber laser based torsion sensor
M. S. Ferreira, J. L. Santos, P. Mergo, O. Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2013 - Microcavity tip temperature sensor based on post-processing
Marta S. Ferreira, Jörg Bierlich, Kay Schuster, José L. Santos, Orlando Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2013 - A vibration sensor based on a distributed Bragg reflector fibre laser
M S Ferreira, M Becker, H Bartelt, P Mergo, J L Santos, O Frazão
Laser Physics Letters, 2013 - Post-processing of fabry-pérot microcavity tip sensor
Marta S. Ferreira, Joerg Bierlich, S. Unger, Kay Schuster, Jose Luis Santos, Orlando Frazao
IEEE Photonics Technology Letters, 2013 - Torsion sensor based on a figure-of-eight cavity fibre laser
M S Ferreira, J L Santos, P Mergo, O Frazão
Laser Physics Letters, 2013 - Next generation of Fabry-Perot sensors for high-temperature
Marta S. Ferreira, Paulo Roriz, Susana O. Silva, José L. Santos, Orlando Frazão
Optical Fiber Technology, 2013 - Post-processed fabry-pérot microcavity tip sensors for temperature measurement
M. S. Ferreira, J. Bierlich, S. Unger, K. Schuster, J. L. Santos, O. Frazão
Optics Infobase Conference Papers, 2013 - Fabry-pérot cavity based on hollow-core ring photonic crystal fiber for pressure sensing
M. S. Ferreira, J. Bierlich, H. Lehmann, K. Schuster, J. Kobelke, J. L. Santos, O. Frazao
IEEE Photonics Technology Letters, 2012 - Towards the control of highly sensitive Fabry-Pérot strain sensor based on hollow-core ring photonic crystal fiber
Marta S. Ferreira, Jörg Bierlich, Jens Kobelke, Kay Schuster, José L. Santos, Orlando Frazão
Optics Express, 2012 - Suspended-core fibers for sensing applications
Orlando Frazão, Ricardo M. Silva, Marta S. Ferreira, José L. Santos, António B. Lobo Ribeiro
Photonic Sensors, 2012 - Growth and characterization of Cu 2ZnSn(S,Se) 4 thin films for solar cells
P.M.P. Salomé, J. Malaquias, P.A. Fernandes, M.S. Ferreira, A.F. da Cunha, J.P. Leitão, J.C. González, F.M. Matinaga
Solar Energy Materials and Solar Cells, 2012 - Temperature independent torsion sensor using a high-birefringent Sagnac loop interferometer
Ricardo M. Silva, Marta S. Ferreira, Orlando Frazão
Optics Communications, 2012 - Spatial optical filter sensor based on hollow-core silica tube
Marta S. Ferreira, Kay Schuster, Jens Kobelke, José L. Santos, Orlando Frazão
Optics Letters, 2012 - Nanostrain measurement using chirped bragg grating fabry-perot interferometer?
Ricardo M. Silva, Marta S. Ferreira, José L. Santos, Orlando Frazão
Photonic Sensors, 2012 - The influence of hydrogen in the incorporation of Zn during the growth of Cu2ZnSnS4 thin films
P.M.P. Salomé, J. Malaquias, P.A. Fernandes, M.S. Ferreira, J.P Leitão, A.F. da Cunha, J.C González, F.N. Matinaga, G.M. Ribeiro, E.R. Viana
Solar Energy Materials and Solar Cells, 2011 - Fabry-Perot cavity based on a diaphragm-free hollow-core silica tube
Marta S. Ferreira, Luís Coelho, Kay Schuster, Jens Kobelke, José L. Santos, Orlando Frazão
Optics Letters, 2011 - Simultaneous measurement of curvature and strain using a suspended multicore fiber
R. M. Silva, M. S. Ferreira, J. Kobelke, K. Schuster, O. Frazão
Optics Letters, 2011 - Torsion sensor based on a high-birefringent Sagnac loop interferometer
M. S. Ferreira, R. M. Silva, O. Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2011 - Chirped Bragg grating Fabry-Perot interferometer for nanostrain measurement
R. M. Silva, M. S. Ferreira, O. Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2011 - Highly birefringent photonic bandgap Bragg fiber loop mirror for sensing applications
M. S. Ferreira, J. M. Baptista, P. Roy, R. Jamier, S. Février, O. Frazão
Proceedings of SPIE the International Society for Optical Engineering, 2011 - Highly birefringent photonic bandgap Bragg fiber loop mirror for simultaneous measurement of strain and temperature
M. S. Ferreira, J. M. Baptista, P. Roy, R. Jamier, S. Février, O. Frazão
Optics Letters, 2011 - Simultaneous measurement of strain and temperature using fiber Bragg grating sensors embedded in hybrid composite laminates
M S Ferreira, J Vieira, C Frias, O Frazão
Measurement Science and Technology, 2011
RECENT SCHOLAR PUBLICATIONS
- Tunable Hybrid Antiresonance and Mach–Zehnder Interferometer Based on Silica Capillary for Dual-Parameter Sensing
MM Costa, AI Freitas, J Bierlich, MS Ferreira
Photonics 13 (4), 333 , 2026
2026 - Impact of different chitosan concentrations on multimode optical fiber sensors for temperature and relative humidity monitoring
T Amaral, AI Freitas, JM Leça, MS Ferreira, M Nascimento
Measurement Science and Technology 37 (11), 115105 , 2026
2026
Citations: 1 - Quantitative Analysis of Bisphenol A in Commercial Beverages
AI Freitas, MS Ferreira, JC Marques
Molecules 31 (5), 805 , 2026
2026 - Detection of Bisphenol a by a Chitosan-Coated Microstructured Optical Fiber Sensor
AI Freitas, J Bierlich, JC Marques, MS Ferreira
Photonics 13 (1), 3 , 2025
2025
Citations: 2 - Long‐Term Stability Evaluation of Optical Fiber Sensors Immersed in LiPF 6 Electrolyte
LC Matuck, LFB Fontes, NF Santos, JL Pinto, MS Ferreira, O Raccurt, ...
Batteries & Supercaps 8 (10), e202500070 , 2025
2025
Citations: 2 - On-Fiber 3D Nanoprinted Antiresonant Hollow-Core Waveguides for Integrated Optofluidics
D Pereira, T Wieduwilt, MS Ferreira, MA Schmidt
ACS Photonics 12 (10), 5788-5798 , 2025
2025
Citations: 1 - A novel fiber-integrated nanoprinted hollow-core waveguide for nanoparticle tracking
D Pereira, MS Ferreira, MA Schmidt
Research summit 2025-Book of abstracts, 380 , 2025
2025 - On-chip hollow-core waveguides with integrated anti-resonant channels, enabled by 3D nanoprinting
D Pereira, MS Ferreira, L Wondraczek, MA Schmidt
Optics Express 33 (14), 30136-30148 , 2025
2025
Citations: 1 - Fiber-Interfaced Nanoprinted Hollow-Core Waveguide: A Novel Platform for Nanoparticle Tracking
D Pereira, T Wieduwilt, W Hauswald, M Zeisberger, MS Ferreira, ...
The European Conference on Lasers and Electro-Optics, ck_9_3 , 2025
2025 - Pressure and temperature sensing with 3D nanoprinted structure integrated on optical fiber
MD Pereira, MS Ferreira, MA Schmidt
29th International Conference on Optical Fiber Sensors 13639, 993 , 2025
2025 - Decoupling temperature and humidity with chitosan-coated tilted FBG sensor
MT Amaral, MAI Freitas, JM Leça, MS Ferreira, M Nascimento
29th International Conference on Optical Fiber Sensors 13639, 1529 , 2025
2025
Citations: 2 - Exploring the use of a virtual reference spectrum in the Vernier effect
MD Santos, G Gonçalves, PAAP Marques, MF Domingues, P Antunes, ...
29th International Conference on Optical Fiber Sensors 13639, 401 , 2025
2025 - Hybrid sensor based on a single segment of hollow-core microstructured optical fiber for simultaneous measurement of pressure and temperature
C Neves, J Bierlich, M Nascimento, MS Ferreira
29th International Conference on Optical Fiber Sensors 13639, 1065-1068 , 2025
2025 - Mind the splice: ultra-high-sensitivity refractometer based on thin-wall silica capillary tube
MM Costa, AI Freitas, J Bierlich, MS Ferreira
29th International Conference on Optical Fiber Sensors 13639, 1069-1072 , 2025
2025 - 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis
D Pereira, T Wieduwilt, W Hauswald, M Zeisberger, MS Ferreira, ...
Light: Science & Applications 14 (1), 197 , 2025
2025
Citations: 4 - A Novel Fiber-Optical Fabry–Perot Microtip Sensor for 2-Propanol
JM Leça, P Antunes, FM Costa, AJS Teixeira, MS Ferreira
Sensors 25 (7), 2178 , 2025
2025
Citations: 1 - Corrigendum to “Towards smart and secure batteries: Linking pressure and temperature profiles with electrochemical behavior through hybrid optical fiber sensors”[Chem. Eng. J …
L Matuck, JP Santos, F Freitas, LB Fontes, J Bierlich, S Geniès, JL Pinto, ...
Chemical Engineering Journal 507, 160523 , 2025
2025 - Hybrid Sensor Based on Fabry-Perot Interferometer for the Simultaneous Measurement of Pressure, Temperature, and Curvature
JP Santos, D Pereira, R Augusto, J Bierlich, M Nascimento, MS Ferreira
Journal of Lightwave Technology , 2025
2025
Citations: 2 - Towards smart and secure batteries: Linking pressure and temperature profiles with electrochemical behavior through hybrid optical fiber sensors
L Matuck, JP Santos, F Freitas, LB Fontes, J Bierlich, S Geniès, JL Pinto, ...
Chemical Engineering Journal 500, 156806 , 2024
2024
Citations: 19 - Revealing a Correlation between Physical Parameters and Differential Voltage Analysis of a Commercial Li-Ion Battery Based on Fiber Optic Sensors
L Matuck, MS Ferreira, M Nascimento
Batteries 10 (8), 289 , 2024
2024
Citations: 4
MOST CITED SCHOLAR PUBLICATIONS
- Internal strain and temperature discrimination with optical fiber hybrid sensors in Li-ion batteries
M Nascimento, S Novais, MS Ding, MS Ferreira, S Koch, S Passerini, ...
Journal of Power Sources 410, 1-9 , 2019
2019
Citations: 234 - Optical harmonic Vernier effect: A new tool for high performance interferometric fiber sensors
AD Gomes, MS Ferreira, J Bierlich, J Kobelke, M Rothhardt, H Bartelt, ...
Sensors 19 (24), 5431 , 2019
2019
Citations: 196 - Real time thermal monitoring of lithium batteries with fiber sensors and thermocouples: A comparative study
M Nascimento, MS Ferreira, JL Pinto
Measurement 111, 260-263 , 2017
2017
Citations: 167 - Growth and characterization of Cu2ZnSn (S, Se) 4 thin films for solar cells
PMP Salomé, J Malaquias, PA Fernandes, MS Ferreira, AF Da Cunha, ...
Solar Energy Materials and Solar Cells 101, 147-153 , 2012
2012
Citations: 139 - Fabry–Perot cavity based on a diaphragm-free hollow-core silica tube
MS Ferreira, L Coelho, K Schuster, J Kobelke, JL Santos, O Frazão
Optics letters 36 (20), 4029-4031 , 2011
2011
Citations: 118 - Towards the control of highly sensitive Fabry-Pérot strain sensor based on hollow-core ring photonic crystal fiber
MS Ferreira, J Bierlich, J Kobelke, K Schuster, JL Santos, O Frazão
Optics express 20 (20), 21946-21952 , 2012
2012
Citations: 98 - Hollow microsphere combined with optical harmonic Vernier effect for strain and temperature discrimination
AD Gomes, MS Ferreira, J Bierlich, J Kobelke, M Rothhardt, H Bartelt, ...
Optics & Laser Technology 127, 106198 , 2020
2020
Citations: 84 - Temperature fiber sensing of Li-ion batteries under different environmental and operating conditions
M Nascimento, MS Ferreira, JL Pinto
Applied Thermal Engineering 149, 1236-1243 , 2019
2019
Citations: 70 - Simultaneous sensing of temperature and Bi-directional strain in a prismatic Li-ion battery
M Nascimento, MS Ferreira, JL Pinto
Batteries 4 (2), 23 , 2018
2018
Citations: 62 - Thermal mapping of a lithium polymer batteries pack with FBGs network
M Nascimento, T Paixão, MS Ferreira, JL Pinto
Batteries 4 (4), 67 , 2018
2018
Citations: 61 - Optical fiber tip sensor for the measurement of glucose aqueous solutions
S Novais, CIA Ferreira, MS Ferreira, JL Pinto
IEEE Photonics Journal 10 (5), 1-9 , 2018
2018
Citations: 59 - Fiber Fabry-Perot interferometer for curvature sensing
CS Monteiro, MS Ferreira, SO Silva, J Kobelke, K Schuster, J Bierlich, ...
Photonic Sensors 6 (4), 339-344 , 2016
2016
Citations: 55 - Simultaneous measurement of curvature and strain using a suspended multicore fiber
RM Silva, MS Ferreira, J Kobelke, K Schuster, O Frazão
Optics letters 36 (19), 3939-3941 , 2011
2011
Citations: 51 - Determination of thermo-optic coefficient of ethanol-water mixtures with optical fiber tip sensor
S Novais, MS Ferreira, JL Pinto
Optical Fiber Technology 45, 276-279 , 2018
2018
Citations: 50 - Fabry-Perot cavity based on silica tube for strain sensing at high temperatures
MS Ferreira, P Roriz, J Bierlich, J Kobelke, K Wondraczek, C Aichele, ...
Optics express 23 (12), 16063-16070 , 2015
2015
Citations: 50 - Optical fiber Fabry–Perot tip sensor for detection of water–glycerin mixtures
S Novais, MS Ferreira, JL Pinto
Journal of Lightwave Technology 36 (9), 1576-1582 , 2018
2018
Citations: 48 - The influence of hydrogen in the incorporation of Zn during the growth of Cu2ZnSnS4 thin films
PMP Salomé, J Malaquias, PA Fernandes, MS Ferreira, JP Leitão, ...
Solar Energy Materials and Solar Cells 95 (12), 3482-3489 , 2011
2011
Citations: 48 - Temperature independent torsion sensor using a high-birefringent Sagnac loop interferometer
RM Silva, MS Ferreira, O Frazao
Optics Communications 285 (6), 1167-1170 , 2012
2012
Citations: 41 - Silica microspheres array strain sensor
MS Ferreira, JL Santos, O Frazão
Optics letters 39 (20), 5937-5940 , 2014
2014
Citations: 36 - Reliability and NDT methods
TG Santos, JP Oliveira, MA Machado, PL Inácio, VR Duarte, ...
Additive Manufacturing Hybrid Processes for Composites Systems, 265-295 , 2020
2020
Citations: 35
