Veena Awadhesh Singh

Scopus Publications

Detection of oral squamous cell carcinoma using indigenously developed multimodal optical imaging and spectroscopy device
Veena Singh, Pramila Thapa, Vivek Nayyar, Varun Surya, Deepika Mishra, Dalip Singh Mehta
Proceedings of SPIE the International Society for Optical Engineering, 2025
This paper describes the application of an indigenously developed multimodal device for the detection of oral squamous cell carcinoma (OSCC). The multimodality integrates autofluorescence imaging with autofluorescence spectroscopy, enhancing the sensitivity and specificity of the device. The device is used on 65 OSCC cases, and the corresponding results are discussed. The imaging part shows the differences in the parameters such as mean, standard deviation etc. while the spectroscopy identifies changes in the endogenous fluorophores and new peaks of porphyrins appear around 630nm. Additionally, the multimodal device facilitates in real-time screening and diagnosis of OSCC, making it suitable for low resource settings.
Two-channel In-vivo Early-stage Oral Cancer Screening Using Field-portable Multimodal and Multispectral Device: A Label-free Approach
Pramila Thapa, Veena Singh, Varun Surya, Deepika Mishra, Anuj Saxena, Dalip S. Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2025
The fatality rate of oral cancer is very high among all cancers worldwide. Early-stage screening/detection of oral cancer shows the potential to lower this fatality rate. Early-stage oral cancer progression is mainly present in the epithelia and can be probed with the help of the autofluorescence technique in real-time. Autofluorescence shows significant changes as cancer progresses since the amount and behavior of endogenous fluorophores like nicotinamide adenine dinucleotide (NADH), flavin adenine dinucleotide (FAD), porphyrins, etc. differ in each cancer progression case. The present manuscript deals with real-time two-channel autofluorescence imaging and spectroscopy of early-stage oral cancer (epithelial hyperplasia and oral dysplasia) patients. Autofluorescence imaging and spectroscopy of oral cancer patients are done with the help of a developed smartphone-based imaging device using 365 nm wavelength and an in-house assembled portable spectroscopic system using 405 nm wavelength, enabling two-channel autofluorescence, respectively. In this study, 13 patients with epithelial hyperplasia and 6 patients with oral dysplasia are screened. The redox ratio (porphyrins/NADH) of epithelial hyperplasia and oral dysplasia is calculated with the help of autofluorescence images. The molecular level changes of the endogenous fluorophores in epithelial hyperplasia and oral dysplasia are probed with autofluorescence spectroscopy. The autofluorescence spectra of epithelial hyperplasia show significant peaks of porphyrins (PpIX) around ~636 nm and ~705nm, and oral dysplasia shows a change in autofluorescence intensity around 500~ 510 nm compared to normal. Further, a thorough statistical study for both cases is performed. This study recorded and demonstrated real-time screening of epithelial hyperplasia and oral dysplasia with significant changes in autofluorescence images and spectra.
Multimodal and multispectral diagnostic devices for oral and breast cancer screening in low resource settings
Dalip Singh Mehta, Pramila Thapa, Veena Singh, Himanshu Joshi, Dibya Jyoti Sarangi, Deepika Mishra, Anurag Srivastava
Current Opinion in Biomedical Engineering, 2023
Multimodal fluorescence imaging and spectroscopic techniques for oral cancer screening: a real-time approach
Pramila Thapa, Veena Singh, Sunil Bhatt, Kiran Maurya, Virendra Kumar, Vivek Nayyar, Kiran Jot, Deepika Mishra, Anurag Shrivastava, Dalip Singh Mehta
Methods and Applications in Fluorescence, 2023
The survival rate of oral squamous cell carcinoma (OSCC) patients is very poor, but it can be improved using highly sensitive, specific, and accurate techniques. Autofluorescence and fluorescence techniques are very sensitive and helpful in cancer screening; being directly linked with the molecular levels of human tissue, they can be used as a quantitative tool for cancer detection. Here, we report the development of multi-modal autofluorescence and fluorescence imaging and spectroscopic (MAF-IS) smartphone-based systems for fast and real-time oral cancer screening. MAF-IS system is indigenously developed and offers the advantages of being a low-cost, handy, non-contact, non-invasive, and easily operable device that can be employed in hospitals, including low-resource settings. In this study, we report the results of 43 individuals with 28 OSCC and 15 oral potentially malignant disorders (OPMDs), i.e., epithelial dysplasia and oral submucous fibrosis, using the developed devices. We observed a red shift in fluorescence emission spectra in vivo. We found red-shift of 7.72 ± 6 nm, 3 ± 4.36 nm, and 1.33 ± 0.47 nm in the case of OSCC, epithelial dysplasia, and oral submucous fibrosis, respectively, compared to normal. The results were compared with histopathology and found to be consistent. Further, the MAF-IS system provides results in real-time with higher accuracy and sensitivity compared to devices using a single modality. Our system can achieve an accuracy of 97% with sensitivity and specificity of 100% and 94.7%, respectively, even with a smaller number of patients (28 patients of OSCC). The proposed MAF-IS device has great potential for fast screening and diagnosis of oral cancer in the future.
Point-of-care devices based on fluorescence imaging and spectroscopy for tumor margin detection during breast cancer surgery: Towards breast conservation treatment
Pramila Thapa, Veena Singh, Komal Gupta, Anurag Shrivastava, Virendra Kumar, Kamal Kataria, Piyush R. Mishra, Dalip S. Mehta
Lasers in Surgery and Medicine, 2023
OBJECTIVE Fluorescence-based methods are highly specific and sensitive and have potential in breast cancer detection. Simultaneous fluorescence imaging and spectroscopy during intraoperative procedures of breast cancer have great advantages in detection of tumor margin as well as in classification of tumor to healthy tissues. Intra-operative real-time confirmation of breast cancer tumor margin is the aim of surgeons, and therefore, there is an urgent need for such techniques and devices which fulfill the surgeon's priorities. METHODS In this article, we propose the development of fluorescence-based smartphone imaging and spectroscopic point-of-care multi-modal devices for detection of invasive ductal carcinoma in tumor margin during removal of tumor. These multimodal devices are portable, cost-effective, noninvasive, and user-friendly. Molecular level sensitivity of fluorescence process shows different behavior in normal, cancerous and marginal tissues. We observed significant spectral changes, such as, red-shift, full-width half maximum (FWHM), and increased intensity as we go towards tumor center from normal tissue. High contrast in fluorescence images and spectra are also recorded for cancer tissues compared to healthy tissues. Preliminary results for the initial trial of the devices are reported in this article. RESULTS A total 44 spectra from 11 patients of invasive ductal carcinoma (11 spectra for invasive ductal carcinoma and rest are normal and negative margins) are used. Principle component analysis is used for the classification of invasive ductal carcinoma with an accuracy of 93%, specificity of 75% and sensitivity of 92.8%. We obtained an average 6.17 ± 1.66 nm red shift for IDC with respect to normal tissue. The red shift and maximum fluorescence intensity indicates p < 0.01. These results described here are supported by histopathological examination of the same sample. CONCLUSION In the present manuscript, simultaneous fluorescence-based imaging and spectroscopy is accomplished for the classification of IDC tissues and breast cancer margin detection.
Analysis of early-stage breast cancer using smartphone-based fluorescence imaging and spectroscopy during intra-operative procedure
Pramila Thapa, Veena Singh, Komal Gupta, Anurag Srivastava, Dalip S. Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2023
Breast cancer is most common cancer among women world-wide and can be treated if diagnosed at early-stage. Fluorescence (FL) techniques have a considerable impact in tumor detection as FL is highly sensitive to biochemical and biophysical structure of the tissues, providing novel techniques for early and noninvasive diagnosis of cancer. Due to high sensitivity of FL, it can be used in early-stage breast cancer detection. Fluorescence-guided-surgery (FGS) using exogenous agent in breast cancer is a well-known method, which locates tumor and margins during intra-operative procedure. FL-spectroscopy and FL-imaging has shown the potentiality in FGS of breast cancer independently. Combination of these two modalities in a single system improves the success rate of FGS which can give tumor free tissues. The goal of the current study is to analyze and classify the early-stage breast cancer, locally advanced breast cancer (invasive ductal carcinoma) and normal tissue. For that, we combine FL-imaging and FL-spectroscopy in a single smartphone-based point-of-care devices and recorded data during intra-operative procedure. A total 21 patients of invasive ductal carcinoma and fibroadenoma are included in this study. Total 65 FL-spectra are recorded during intra-operative procedure which are further used in support vector machine (SVM) based classification of fibroadenoma, invasive ductal carcinoma (IDC) and normal tissue. The sensitivity, specificity, positive predictive value, negative predictive value, and overall diagnostic accuracy (total efficiency) is 78.6 %, 90%, 91.6%, 75%, 95%, respectively. Additionally, we observed a red shift in case of IDC and fibroadenoma from normal tissue, which is 5.22±1.77 nm, and 4.96±2.61 nm, respectively.
Design and development of integrated TIRF and common-path quantitative phase microscopic health care system with high stability
Shilpa Tayal, Anuj Saxena, Veena Singh, Tejinder Kaur, Neetu Singh, Kedar Khare, Dalip Singh Mehta
Optics and Lasers in Engineering, 2022
White light phase shifting interferometric microscopy with whole slide imaging for quantitative analysis of biological samples
Priyanka Mann, Veena Singh, Shilpa Tayal, Pramila Thapa, Dalip Singh Mehta
Journal of Biophotonics, 2022
In this paper, we demonstrate the white light phase shifting Interferometer employed as whole slide scanner and phase profiler for determining qualitative and quantitative information over large field-of-view. Experiments were performed on human erythrocytes and MG63 Osteosarcoma cells. Here, we have recorded microscopic images and phase shifted white light interferograms simultaneously in a stepped manner. Sample slide is translated in transverse direction such that there exists a correlation between the adjacent frames, and they were stitched together using correlation functions. Final stitched image has a field-of-view of 0.24*1.14 mm with high resolution ~0.8 μm. Circular Hough transform algorithm is implemented to the resulting image for cell counting and five-step phase shifting algorithm is utilised to retrieve the phase profiles over a large field-of-view. Further, this technique is utilised to study the difference between normal and anaemic erythrocytes. Significant changes are observed in anaemic cells as compared to normal cells. This article is protected by copyright. All rights reserved.
Development of multimodal micro-endoscopic system with oblique illumination for simultaneous fluorescence imaging and spectroscopy of oral cancer
Pramila Thapa, Veena Singh, Sunil Bhatt, Shilpa Tayal, Priyanka Mann, Kiran Maurya, Deepika Mishra, Dalip Singh Mehta
Journal of Biophotonics, 2022
Multimodality of an optical system implies the use of one or more optical techniques to improve the system's overall performance and maximum utility. In this paper, we demonstrate a multi-modal system with oblique illumination that combines two different techniques; fluorescence micro-endoscopy and spectroscopy simultaneously and can be utilized to obtain diverse information from the same location of biological sample. In present system, use of graded-index (GRIN) rod-lens makes it highly compact and oblique incidence decouples illumination geometry with collection geometry, preventing CCD cameras from saturation and reduces number of optical elements, thereby making system further miniaturized and field-portable. It also overcomes disadvantages of undesired reflections from different optical elements. The experimental results of simultaneous imaging and spectroscopy of the biological samples are presented along with quantitative spectroscopic parameters; peak wavelength shift, area under the curve and full width half maximum (FWHM) are calculated. This article is protected by copyright. All rights reserved.
Multimodal biomicroscopic system for the characterization of cells with high spatial phase sensitivity and sub-pixel accuracy
Shilpa Tayal, Veena Singh, Tejinder Kaur, Neetu Singh, Dalip Singh Mehta
Journal of Biophotonics, 2022
Multi-modal analysis is highly advantageous for various biomedical applications including cancer and brain studies. Simultaneous measurement of quantitative phase with sub-pixel accuracy and fluorescence image is difficult to achieve in single measurement. Conventionally, off- axis interferograms are analyzed using the Fourier-transform method which limits the accuracy of the phase maps by pixel size, and usually the location of the carrier peak is in sub-pixel. We report a multi-modal microscopic system consisting of high-resolution (HR) quantitative phase interferometer (QPI) to retrieve sub- pixel accuracy in phase imaging and an oblique-illumination based fluorescence imaging system which decouples the excited light from emitted signal light to avoid saturation of the camera, both integrated into a single unit. Here, highly-resolved phase maps are obtained using a two-step process. Firstly, using a speckle-free illumination which offers high spatial phase sensitivity. Secondly, using a hamming window for accurate estimation of original signal frequency information and HR discrete Fourier transform (DFT) which offers sub-pixel accuracy in phase measurements. HR-DFT has computational load of O(ABβ), where A×B is the size of the interferogram and β is the upsampling factor, making system computationally more robust and efficient compared to zero-padded FFT. The experiment is conducted on MG63 osteosarcoma and human mesenchymal stem cells( hMSCs) and their quantitative parameters are extracted with significantly improved accuracy. The average phase for MG63 cells and hMSCs; for nucleus is obtained to be 8.02rad ± 0.80rad and 4.29rad ± 0.43rad ,respectively and for cytoplasm is obtained to be 2.63rad ± 0.96rad and 1.73rad ± 0.57rad, respectively. This article is protected by copyright. All rights reserved.
Quantitative Phase Microscopy and Tomography: Techniques using partially spatially coherent monochromatic light
Dalip Singh Mehta, Ankit Butola, Veena Singh
Quantitative Phase Microscopy and Tomography Techniques Using Partially Spatially Coherent Monochromatic Light, 2022
Speckle noise reduction strategies in laser-based projection imaging, fluorescence microscopy, and digital holography with uniform illumination, improved image sharpness, and resolution
Virendra Kumar, Atul Kumar Dubey, Mayank Gupta, Veena Singh, Ankit Butola, Dalip Singh Mehta
Optics and Laser Technology, 2021
Monitoring the health of laser-driven phosphor-converted white light source using spectral interference technique
Atul Kumar Dubey, Veena Singh, Mayank Gupta, Virendra Kumar, Dalip Singh Mehta
Optics and Lasers in Engineering, 2021
Highly Stable, Field Portable, Single Shot and Low Cost LED Based Digital Holographic Microscope
Veena Singh, Shilpa Tayal, Dalip Singh Mehta
Springer Proceedings in Physics, 2021
White Light Interference Microscopy for Quantitative Phase Imaging of Biological Samples Using Hilbert Transform
Priyanka Mann, Veena Singh, Shilpa Tayal, Vishesh Dubey, Dalip Singh Mehta
Springer Proceedings in Physics, 2021
Development of multi-modal system for quantitative phase and fluorescence imaging of osteo cancer cells
Optics Infobase Conference Papers, 2021
Development of Multi-Modal System for Quantitative Phase and Fluorescence Imaging of Osteo Cancer Cells
Shilpa Tayal, Veena Singh, Tejinder Kaur, Neetu Singh, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2021
White light interference microscopy and cell counting with wide field of view
Priyanka Mann, Shilpa Tayal, Veena Singh, Pramila Thapa, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2021
Field Portable Total Internal Reflection Fluorescence Microscopy
Anuj Saxena, Vishesh Dubey, Veena Singh, Shilpa Tayal, Dalip Singh Mehta
Springer Proceedings in Physics, 2021
White light interference microscopy and cell counting with wide field of view
Optics Infobase Conference Papers, 2021
Field Portable Micro Endoscopy for In Vivo Microscopy of Cancerous Tissue: A Point of Care Device
Pramila Thapa, Hansha Pandey, Veena Singh, Shilpa Tayal, Anurag Shrivastava, D. S. Mehta
Springer Proceedings in Physics, 2021
Field Portable Grin-Lens Based Micro-Endoscopic System with Oblique-Illumination for Cancer Screening
Primala Thapa, Sunil Bhatt, Veena Singh, Shilpa Tayal, Priyanka Mann, Anurag Shrivastava, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2021
Field portable grin-lens based micro-endoscopic system with oblique-illumination for cancer screening
Optics Infobase Conference Papers, 2021
Design and development of laser speckle reduction device using waveguide diffuser and pyramidal cavity for projection imaging
Virendra Kumar, Mayank Gupta, Atul Kumar Dubey, Shilpa Tayal, Veena Singh, Dalip Singh Mehta
Journal of Optics United Kingdom, 2020
Simultaneous fluorescence and quantitative phase imaging of MG63 osteosarcoma cells to monitor morphological changes with time using partially spatially coherent light source
Shilpa Tayal, Veena Singh, Tejinder Kaur, Neetu Singh, Dalip Singh Mehta
Methods and Applications in Fluorescence, 2020
Machine learning-based screening of red blood cells using quantitative phase imaging with micro-spectrocolorimetry
Veena Singh, Vishal Srivastava, Dalip S. Mehta
Optics and Laser Technology, 2020
Laser speckle reduction using spatially structured and temporally varying beams using double diffractive optical elements
Virendra Kumar, Kashif Usmani, Veena Singh, Atul Kumar Dubey, Mayank Gupta, Dalip Singh Mehta
Laser Physics Letters, 2020
White light interference microscopy with color fringe analysis for quantitative phase imaging and 3-D step height measurement
Optics Infobase Conference Papers, 2020
Field-portable multi-modal chip-based fluorescence, bright field and quantitative phase microscopy using smartphone detecting system
Dalip S. Mehta, Shilpa Tayal, Anuj Saxena, Veena Singh, Vishesh Dubey
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2020
Speckle-free quantitative phase microscopy using pseudo-thermal light source for label-free imaging of biological cells and tissues with high temporal phase stability and spatial phase sensitivity
Dalip S. Mehta, Veena Singh, Shilpa Tayal, Sunil Bhatt, Vishesh Kumar Dubey
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2020
Quantitative phase imaging of MG63 cancer cells for monitoring changes in morphology with time using spatially low and temporally high coherent light source
Shilpa Tayal, Veena Singh, Tejinder Kaur, Neetu Singh, Dalip Singh Mehta
2019 Workshop on Recent Advances in Photonics Wrap 2019, 2019
Single shot fringe projection profilometry using tunable frequency Fresnel biprism interferometer for large range of measurement
Veena Singh, Shilpa Tayal, Dalip Singh Mehta
Optics Communications, 2019
Blue laser diode-pumped Ce:YAG phosphor-coated cylindrical rod-based extended white light source with uniform illumination
Atul Kumar Dubey, Mayank Gupta, Virendra Kumar, Veena Singh, Dalip Singh Mehta
Laser Physics, 2019
Simultaneous high-resolution and wide-field microscopy with improved image sharpness using pseudo-thermal light source and Fourier Ptychography
Veena Singh, Shilpa Tayal, Dalip Singh Mehta
Optik, 2019
Speckle-free common-path quantitative phase imaging with high temporal phase stability using a partially spatially coherent multi-spectral light source
Veena Singh, Rakesh Joshi, Shilpa Tayal, Dalip Singh Mehta
Laser Physics Letters, 2019
Speckle-free quantitative phase and amplitude imaging using common-path lateral shearing interference microscope with pseudo-thermal light source illumination
Shilpa Tayal, Kashif Usmani, Veena Singh, Vishesh Dubey, Dalip Singh Mehta
Optik, 2019
Highly stable wide-field common path digital holographic microscope based on a Fresnel biprism interferometer
Veena Singh, Shilpa Tayal, Dalip Singh Mehta
OSA Continuum, 2018
Longitudinal spatial coherence gated high-resolution tomography and quantitative phase microscopy of biological cells and tissues with uniform illumination
Dalip S. Mehta, Azeem Ahmad, Veena Singh, Ankit Butola, Vishesh Kumar Dubey, Tonmoy Mohanty, Sreyanker Nandi
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2018
High Resolution and Wide Field Microscopy Using Fourier Ptychography and Flatbed Scanner
Veena Singh, Abhilasha Kamboj, Aishwarya Maurya, Dalip Singh Mehta
Wrap 2017 Workshop on Recent Advances in Photonics, 2017
Fiber-Optic Micro-Endoscopy for Imaging Biological Cells at Remote Location and Depixelation of Images Using Discrete Cosine Transform
Ankit Butola, Rahul Pal, Azeem Ahmad, Vishesh Dubey, Veena Singh, Kedar Khare, P. Senthilkumaran, Dalip Singh Mehta
Wrap 2017 Workshop on Recent Advances in Photonics, 2017
Quantitative phase imaging using white light interference microscopy with color fringe analysis: A comparative study of color interferograms recorded by single chip and 3-chip CCD color camera
Vishesh Dubey, Azeem Ahmad, Veena Singh, Ankit Butola, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2017
Quantitative phase imaging using white light interference microscopy with color fringe analysis; A comparative study of color interferograms recorded by single chip and 3-chip CCD color camera
Vishesh Dubey, Azeem Ahmad, Veena Singh, Ankit Butola, Dalip Singh Mehta
Optics Infobase Conference Papers, 2017
Reduction of spatial phase noise in the laser based digital holographic microscopy for the quantitative phase measurement of biological cells
Azeem Ahmad, Vishesh Dubey, Veena Singh, Ankit Butola, Tilak Joshi, Dalip Singh Mehta
Optics Infobase Conference Papers, 2017
Reduction of spatial phase noise in the laser based digital holographic microscopy for the quantitative phase measurement of biological cells
Azeem Ahmad, Vishesh Dubey, Veena Singh, Ankit Butola, Tilak Joshi, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2017
Quantitative phase imaging using spectrally resolved white light interferometry
Ankit Butola, Azeem Ahmad, Vishesh Dubey, Veena Singh, Tilak Joshi, P. Senthilkumaran, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2017
Quantitative phase imaging using spectrally resolved white light interferometry
Ankit Butola, Azeem Ahmad, Vishesh Dubey, Veena Singh, Tilak Joshi, P. Senthilkumaran, Dalip Singh Mehta
Optics Infobase Conference Papers, 2017
Polarization interferometric digital holographic microscope for quantitative phase imaging and coherent noise reduction
Veena Singh, Gyanendra Singh, Azeem Ahmad, Vishesh Dubey, Ankit Butola, Tilak Joshi, Dalip Singh Mehta
Optics Infobase Conference Papers, 2017
Polarization interferometric digital holographic microscope for quantitative phase imaging and coherent noise reduction
Veena Singh, Gyanendra Singh, Azeem Ahmad, Vishesh Dubey, Ankit Butola, Tilak Joshi, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2017
Impacts of TNF-LTA SNPs/Haplotypes and Lifestyle Factors on Oral Carcinoma in an Indian Population
Kapil Bandil, Pallavi Singhal, Upma Sharma, Showket Hussain, Surojit Basu, Aditya Parashari, Veena Singh, Ashok Sehgal, Animesh Shivam, Puneet Ahuja, Mausumi Bharadwaj, Basu Dev Banerjee, Ravi Mehrotra
Molecular Diagnosis and Therapy, 2016
Quantitative phase imaging of biological cells using spatially low and temporally high coherent light source
Azeem Ahmad, Vishesh Dubey, Gyanendra Singh, Veena Singh, Dalip Singh Mehta
Optics Letters, 2016
Multispectral quantitative phase imaging of human red blood cells using inexpensive narrowband multicolor LEDs
Vishesh Dubey, Gyanendra Singh, Veena Singh, Azeem Ahmad, Dalip Singh Mehta
Applied Optics, 2016
Quantitative phase imaging of biological cells and tissues using singleshot white light interference microscopy and phase subtraction method for extended range of measurement
Dalip Singh Mehta, Anuradha Sharma, Vishesh Dubey, Veena Singh, Azeem Ahmad
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2016
White light phase shifting interferometry and color fringe analysis for the detection of contaminants in water
Vishesh Dubey, Veena Singh, Azeem Ahmad, Gyanendra Singh, Dalip Singh Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2016
A novel phase shifting structured illumination microscopy
Veena Singh, Vishesh Dubey, Azeem Ahmad, Gyanendra Singh, D. S. Mehta
Progress in Biomedical Optics and Imaging Proceedings of SPIE, 2016
Openfoam based virtual laboratory for optical measurements
Ashish Kulkarni, Kedar Jathar, Mahendra Wankhede, Veena Singh, P. K. Panigrahi, K. Muralidhar
ASME 2012 Heat Transfer Summer Conf Collocated with the ASME 2012 Fluids Engineering Div Summer Meeting and the ASME 2012 10th Int Conf on Nanochannels Microchannels and Minichannels Ht 2012, 2012
An educational website on interferometry
Veena Singh, Richa Dubey, P. K. Panigrahi, K. Muralidhar
Proceedings 2012 IEEE International Conference on Technology Enhanced Education Ictee 2012, 2012

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