Biography
****2 externally-funded Ph.D. positions are available****
Dr. Vyas Akondi is an Assistant Professor in the Department of Physical Sciences at IISER Berhampur, specializing in the field of applied optics. His research is focused on wavefront sensing, adaptive optics, and advanced optical imaging techniques. He is particularly interested in the development and application of Shack-Hartmann wavefront sensors and adaptive optics systems, with applications ranging from ophthalmology to microscopy. Dr. Akondi's lab is currently engaged in several significant projects, including a SERB-funded initiative to design an adaptive optics structured illumination microscope. He is keen to expand his research team and is looking for enthusiastic researchers to join him in advancing these cutting-edge projects.
- V. Akondi*, G. Ayubi*, X. Huang, K. Kunala, and A. Dubra, Telecentric model eye for correction of image distortion in adaptive optics ophthalmoscopes, Biomedical Optics Express, 16(7), 2767-2791, 2025.
- F. Zarei, S. M. Ahmadi, S. Dehbani-Zadeh, A. Jafari, Vyas Akondi, S. Chatterjee, S. A. Mirhosseini, R. R. Haghighi, Ultra-Low Dose Computed Tomography Imaging in Quantifying Bone Trauma and Disorders: A Cross-Sectional Study, Iranian Journal of Medical Sciences, 50(4), 229, 2025.
- A. Jafari, F. Zarei, H. Masjedi, S. Moshiri, Vyas Akondi, S. Chatterjee, R. R. Haghighi, Testing linearity of CT System and Contrast Volume Tailoring for Optimal Hounsfield Units: A Theoretical and Experimental Study, Frontiers in Biomedical Technologies, 12(2), 309-319, 2025.
- Suman Sangiri, Alfredo Dubra, Vyas Akondi,
Accounting for intensity variation within pixels of Shack-Hartmann wavefront sensors, Optik, 172107, 2024.
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R.R. Haghighi, F. Zarei, S. Moshiri, A. Jafari, S. Chatterjee, V. Akondi, V. C. Vani, Composite Iodine-gold Nanoparticles as a Contrast Agent in Computed Tomography, Journal of Medical Physics, 49(3), 448-455, (2024).
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R. R. Haghighi, S. Chatterjee, F. Zarei, A. Jafari, V. C. Vani, P. Pishdad, S. Moshiri, V. Akondi, Effect of aspect ratio on the x-ray attenuation of nanoparticles: A theoretical study, Journal of Radiation Physics and Chemistry, 218, 111626, (2024).
- B. Kowalski, V. Akondi, A. Dubra, Correction of non-uniform angular velocity and sub-pixel jitter in optical scanning, Optics Express 30(1), 112-124, (2022).
- V. Akondi, B. Kowalski, and A. Dubra, Dynamic wavefront distortion in resonant scanners, Applied Optics, 60(36), 11189-11195, (2021).
- V. Akondi and A. Dubra, Shack-Hartmann wavefront sensor optical dynamic range, Optics Express, 29(6), 8417-8429, (2021).
- V. Akondi and A. Dubra, Multi-layer Shack-Hartmann wavefront sensing in the point source regime, Biomedical Optics Express, 12(1), 409-432, (2021).
- V. Akondi, B. Kowalski, S. A. Burns, and A. Dubra, Dynamic distortion in resonant galvanometric optical scanners, Optica, 7(11), 1506-1513, (2020).
- V. Akondi and A. Dubra, Average gradient of Zernike polynomials over polygons, Optics Express, 28(13), 18876-18886, (2020).
- M. Vinas, S. Aissati, A. M. Gonzalez-Ramos, M. Romero, L. Sawides, V. Akondi, E. Gambra, C. Dorronsoro, T. Karkkainen, D. Nankivil, S. Marcos, Optical and visual quality with physical and visually simulated presbyopic multifocal contact lenses, Translational Vision Science and Technology 9(10), 20, (2020).
- V. Akondi and A. Dubra, Accounting for focal shift in the Shack–Hartmann wavefront sensor, Optics Letters, 44(17), 4151-4154, (2019).
- V. Akondi , S. Steven, and A. Dubra, Centroid error due to non-uniform lenslet illumination in the Shack- Hartmann wavefront sensor, Optics Letters, 44(17), 4167-4170, (2019).
- M. Vinas, C. Benedi, S. Aissati, D. Pascual, V. Akondi, C. Dorronsoro, S. Marcos, Visual simulators replicate vision with multifocal lenses, Scientific Reports, 9, 1539, (2019).
- C. Dorronsoro, X. Barcala, E. Gambra, V. Akondi, L. Sawides, Y. Marrakchi, V. Rodriguez-Lopez, C. Benedi-Garcia, M. Vinas, E. Lage, and S. Marcos, Tunable lenses: dynamic characterization and fine-tuned control for high-speed applications, Optics Express, 27(3), 2085-2100, (2019).
- V. Akondi, L. Sawides, Y. Marrakchi, E. Gambra, C. Dorronsoro, and S. Marcos, Experimental validations of a tunable-lens-based visual demonstrator of multifocal corrections, Biomedical Optics Express, 9(12), 6302-6317, (2018).
- M. Vinas, A. Gonzalez-Ramos, C. Dorronsoro, V. Akondi, N. Garzon, F. Poyales, S. Marcos, In Vivo Measurement of Longitudinal Chromatic Aberration in Patients Implanted With Trifocal Diffractive Intraocular Lenses, Journal of Refractive Surgery, 33(11), 736–742, (2017).
- V. Akondi, C. Dorronsoro, E. Gambra and S. Marcos, Temporal multiplexing to simulate multifocal intraocular lenses: theoretical considerations, Biomedical Optics Express, 8(7), 3410-3425, (2017).
- V. Akondi, P. Perez-Merino, E. Martinez-Enriquez, C. Dorronsoro, N. Alejandre, I. Jimenez-Alfaro, S. Marcos, Evaluation of the True Wavefront Aberrations in Eyes Implanted With a Rotationally Asymmetric Multifocal Intraocular Lens, Journal of Refractive Surgery, 33(4), 257–265, (2017).
- V. Akondi, B. Vohnsen and S. Marcos, Virtual pyramid wavefront sensor for phase unwrapping, Applied Optics, 55(29), 8363-8367, (2017).
- V. Akondi, C. Falldorf, S. Marcos and B. Vohnsen, Phase unwrapping with a virtual Hartmann-Shack wavefront sensor, Optics Express, 23(20), 25425-25439, (2015).
- A. R. Jewel, V. Akondi, B. Vohnsen, Optimization of sensing parameters for a confocal signal-based wavefront corrector in microscopy, Journal of Modern Optics, 62(10), 786-792, (2015).
- V. Akondi, A. R. Jewel, B. Vohnsen, Closed-loop adaptive optics using a spatial light modulator for sensing and compensating of optical aberrations in ophthalmic applications, Journal of Biomedical Optics, 19(9), 096014-096014, (2014).
- V. Akondi, S. Castillo, B. Vohnsen, Multi-faceted digital pyramid wavefront sensor, Optics Communications, 323, 77-86, (2014).
- V. Akondi, A. R. Jewel, B. Vohnsen, Digital phase-shifting point diffraction interferometer, Optics Letters, 39(6), 1641-1644, (2014).
- R. M. Basavaraju, V. Akondi, S. J. Weddell, B. R. Prasad, Myopic aberrations: Simulation based comparison of curvature and Hartmann Shack wavefront sensors, Optics Communications, 312, 23-30, (2014).
- V. Akondi, S. Castillo, B. Vohnsen, Digital pyramid wavefront sensor with tunable modulation, Optics Express, 21(15), 18261-18272, (2013).
- V. Akondi, B. Vohnsen, Myopic aberrations: impact of centroiding noise in Hartmann Shack wavefront sensing, Ophthalmic and Physiological Optics, 33(4), 434-443, (2013).
- A. R. Jewel, V. Akondi, B. Vohnsen, A direct comparison between a MEMS deformable mirror and a liquid crystal spatial light modulator in signal-based wavefront sensing, Journal of the European Optical Society-Rapid publications, 8, 13073, (2013).
- M. B. Roopashree, V. Akondi, B. R. Prasad, A review of atmospheric wind speed measurement techniques with Shack Hartmann wavefront imaging sensor in adaptive optics, Journal of the Indian Institute of Science, 93(1), 67-84, (2013).
- R. R. Haghighi, S. Chatterjee, V. Akondi, P. Kumar, S. Thulkar, X-ray attenuation coefficient of mixtures: Inputs for dual-energy CT, Medical Physics, 38, 5270, (2011).
- Wavefront Sensing
- Adaptive Optics
- Ophthalmic Imaging
- Visual Optics
- Microscopy
- Mr. Suman Sangiri, Ph.D. student
- Mr. Paresh Kumar Sahoo, Ph.D. student
- Dr. Akash Kumar Tarai, Post-Doctoral Research Fellow
- Mr. Abhijit Mishra, Ph.D. student
- Ph.D. (2012), IISc Bangalore, India
- M.Sc. Physics (2006), SSSIHL, India
- B.Sc. Physics Hons., (2004), SSSIHL, India
- Assistant Professor (2022 - Present), IISER Berhampur, India
- Senior Research Scientist (2018 - 2022), Stanford University, USA
- Senior Postdoctoral Research Fellow (2014 - 2018), Instituto de Óptica "Daza de Valdés" (IO-CSIC), Spain
- Postdoctoral Research Fellow (2012 - 2014), University College Dublin, Ireland
- Senior Member, Optica
- Life Member, SPIE
- Life Member, Optical Society of India
- Life Member, Indian Eye Research Group (ARVO-India)
- Qualcomm Distinguished Poster Award, SCIEN Industry Affiliates Meeting, Stanford University, 2020
- Outstanding Reviewer Recognition Award, OSA, 2016
- Advanced M+Vision Fellowship in Translational Biomedical Imaging (EU COFUND under FP7 - Marie Curie actions), 2014-2017
- OSA Foundation Student travel grant, Toronto, Canada, 2011
- CSIR foreign travel grant, 2011
- Silver medal in the best paper category, ACEEE, 2011
- SPIE student travel grant, SPIE Photonics West San Francisco, USA, 2011
- JN Sapru Scholarship and gold medal, 12th standard (2001)
