Dr. Gufran S. Khan Profile

Dr. Gufran S. Khan

Associate Professor at Indian Institute of Technology Delhi

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Author

Publications (19)

Proceedings Article | 14 September 2023 Paper

Compact monolithic freeform Fresnel receiver front-end for Li-Fi application: a step forward

Deblina Sabui, Sourish Chatterjee, Vinod Mishra, Biswanath Roy, Gufran Khan

Proceedings Volume 12798, 1279809 (2023) https://doi.org/10.1117/12.2691611

KEYWORDS: Receivers, Design and modelling, Photodiodes, Freeform optics, Visible light communication, Optical surfaces, Internet of things, Data communications, Zemax, Transmitters

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Proceedings Article | 8 December 2022 Paper

Volume phase holographic grating based digital holographic interferometer for temperature measurement of human hand skin

Vivek Rastogi, Varun Kumar, Satish Kumar Dubey, Gufran Sayeed Khan, Chandra Shakher

Proceedings Volume 12480, 1248006 (2022) https://doi.org/10.1117/12.2660156

KEYWORDS: Skin, Temperature metrology, Digital holography, Holography, Sensors, Holographic interferometry, Volume holography, Refractive index, Infrared radiation, Holographic interferometers

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Proceedings Article | 3 October 2022 Poster + Paper

An improved angular diversity receiver structure for indoor VLC system using off-axis freeform optics

Deblina Sabui, Sourish Chatterjee, Avijit Prakash, Biswanath Roy, Gufran Khan

Proceedings Volume 12216, 122160V (2022) https://doi.org/10.1117/12.2646249

KEYWORDS: Receivers, Freeform optics, Spherical lenses, Transmitters, Sensors, Photodiodes, Optical communications, Lens design

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Proceedings Article | 20 June 2021 Presentation + Paper

Volume phase holographic grating based digital holographic interferometer for measurement of temperature distribution and temperature fluctuations in diffusion flames

Vivek Rastogi, Varun Kumar, Satish Dubey, Gufran Khan, Chandra Shakher

Proceedings Volume 11782, 117820K (2021) https://doi.org/10.1117/12.2592405

KEYWORDS: Temperature metrology, Digital holography, Holographic interferometry, Diffusion, Holography, Volume holography, Signal to noise ratio, Interferometry, Holographic interferometers, Speckle

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Proceedings Article | 21 August 2020 Presentation + Paper

A Taguchi based performance predictive optimization model to design broadband antireflector

Deblina Sabui, T. Yuvaraj, Vinod Mishra, Arpit Gupta, Gufran Khan, Chandra Shakher

Proceedings Volume 11483, 114830K (2020) https://doi.org/10.1117/12.2568538

KEYWORDS: Reflection, Antireflective coatings, Silicon, Short wave infrared radiation, Refractive index, Tolerancing, Optimization (mathematics), Systems modeling, Performance modeling

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Proceedings Article | 20 August 2020 Presentation + Paper

Fabrication and characterization of diffracto-freeform optics

Vinod Mishra, Deblina Sabui, T. Yuvaraj, Dali Burada, Vinod Karar, Gufran Khan

Proceedings Volume 11487, 1148718 (2020) https://doi.org/10.1117/12.2568518

KEYWORDS: Optics manufacturing, Optical alignment, Metrology, Optical components, Manufacturing, Freeform optics, Diamond machining, Single point diamond turning, Servomechanisms

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Proceedings Article | 20 August 2020 Presentation + Paper

Novel volume holographic grating-based spectrum-splitting concentrator for hybrid solar system

T. P. Yuvaraj, Deblina Sabui, Vinod Mishra, Gufran Khan, Chandra Shakher

Proceedings Volume 11495, 114950P (2020) https://doi.org/10.1117/12.2568625

KEYWORDS: Diffraction gratings, Holography, Volume holography, Solar concentrators, Diffraction, Solar energy, Solar cells, Optical filters, Optical design

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Proceedings Article | 18 November 2019 Paper

Microscopic urinalysis by digital holographic microscopy

Vivek Rastogi, Shilpi Agarwal, Satish Kumar Dubey, Gufran Sayeed Khan, Chandra Shakher

Proceedings Volume 11188, 1118818 (2019) https://doi.org/10.1117/12.2537315

KEYWORDS: Digital holography, Holography, Microscopy, Crystals, Blood, Diagnostics, Chemical elements, Bacteria, Imaging systems, Glasses

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Proceedings Article | 21 June 2019 Paper

Freeform optics alignment strategy and its effect on development of precision freeform optics

Vinod Mishra, Dali Burada, Kamal Pant, Vinod Karar, Sunil Jha, Gufran S. Khan

Proceedings Volume 11056, 110564B (2019) https://doi.org/10.1117/12.2526017

KEYWORDS: Optical alignment, Freeform optics, Metrology, Optics manufacturing, Diamond turning, Optical components, Error analysis

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Proceedings Article | 21 June 2019 Paper

Intrinsic surface feature based subaperture stitching of freeform wavefront

Kamal Pant, Dali Burada, Vinod Mishra, L. Pant, Amitava Ghosh, Gufran Khan, Stefan Sinzinger, Chandra Shakher

Proceedings Volume 11057, 1105708 (2019) https://doi.org/10.1117/12.2526037

KEYWORDS: Wavefronts, Image registration, Photovoltaics, Metrology, Data integration, Manufacturing, Phase measurement, Error analysis, Sensors, Freeform optics

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Proceedings Article | 21 June 2019 Paper

High resolution measurement of freeform wavefront by using self-imaging based sensor

Lalit MohanPant, K. Pant, Dali Burada, A. Ghosh, Gufran Khan, Chandra Shakher

Proceedings Volume 11056, 1105647 (2019) https://doi.org/10.1117/12.2525961

KEYWORDS: Wavefronts, Sensors, Collimation, Error analysis, Spatial resolution, Freeform optics, Metrology, Wavefront sensors, Algorithm development, Optical design

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Proceedings Article | 21 June 2019 Paper

Error estimation due to approximations in Shack-Hartmann sensor based measurement of high slope freeform wavefront

Ashish Dwivedi, Kamal Pant, Dali Burada, Gufran Khan, Anurag Sharma

Proceedings Volume 11057, 110571J (2019) https://doi.org/10.1117/12.2526125

KEYWORDS: Wavefronts, Sensors, Error analysis, Zemax, Ray tracing, Wavefront reconstruction, Wavefront sensors, Spherical lenses, Photovoltaics, Collimation

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Proceedings Article | 22 August 2017 Paper

Phase contrast imaging of red blood cells using digital holographic interferometric microscope

Varun Kumar, Gufran Khan, Chandra Shakher

Proceedings Volume 10453, 104532T (2017) https://doi.org/10.1117/12.2276335

KEYWORDS: Digital holography, Holographic interferometry, Phase contrast, Microscopes, Blood, Phase shifting, Phase compensation, 3D image reconstruction, Holograms, Interferometry

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SPIE Journal Paper | 22 August 2017

Experimental investigations on characterization of freeform wavefront using Shack–Hartmann sensor

Dali Burada, Kamal Pant, Mohamed Bichra, Gufran Khan, Stefan Sinzinger, Chandra Shakher

OE, Vol. 56, Issue 08, 084107, (August 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.8.084107

KEYWORDS: Wavefronts, Photovoltaics, Sensors, Aspheric lenses, Diffractive optical elements, Freeform optics, Interferometry, Optical engineering, Metrology, Error analysis

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Proceedings Article | 26 June 2017 Paper

Development of metrology for freeform optics in reflection mode

Dali Burada, Kamal Pant, Vinod Mishra, Mohamed Bichra, Gufran Khan, Stefan Sinzinger, Chandra Shakher

Proceedings Volume 10329, 103291K (2017) https://doi.org/10.1117/12.2270284

KEYWORDS: Metrology, Optics manufacturing, Wavefront sensors, Freeform optics, Sensors, Optical testing, Fabrication, Manufacturing, 3D metrology, Projection systems, Wavefronts, Beam splitters, Reflection, Photovoltaics

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SPIE Journal Paper | 9 November 2016

Design and evaluation of laser spot illuminator for a laser projection engine design

Ashish Dwivedi, Gufran Sayeed Khan, Anurag Sharma

OE, Vol. 55, Issue 11, 115102, (November 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.115102

KEYWORDS: Prisms, Fiber optic illuminators, Tolerancing, Laser development, Optical components, Optical design, Collimation, Prototyping, Monte Carlo methods, Projection systems

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Proceedings Article | 24 August 2015 Paper

Measurement of elastic and thermal properties of composite materials using digital speckle pattern interferometry

Manoj Kumar, Gufran Khan, Chandra Shakher

Proceedings Volume 9660, 966011 (2015) https://doi.org/10.1117/12.2196390

KEYWORDS: Composites, Speckle, Interferometry, Speckle pattern, Fringe analysis, Fiber reinforced polymers, Beam splitters, Digital holography, Phase shifts, Infrared imaging

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Proceedings Article | 29 September 2010 Paper

Computer-controlled cylindrical polishing process for development of grazing incidence optics for the hard x-ray region

Gufran Khan, Mikhail Gubarev, Chet Speegle, Brian Ramsey

Proceedings Volume 7802, 78020H (2010) https://doi.org/10.1117/12.862635

KEYWORDS: Polishing, Surface finishing, X-ray optics, Mathematical modeling, Hard x-rays, Grazing incidence, Mirrors, Polishing equipment, Software development, Space telescopes

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Proceedings Article | 31 August 2009 Paper

Development of a computer-controlled polishing process for x-ray optics

Gufran Khan, Mikhail Gubarev, William Arnold, Brian Ramsey

Proceedings Volume 7437, 743710 (2009) https://doi.org/10.1117/12.837360

KEYWORDS: Polishing, Surface finishing, X-ray optics, Mirrors, Polishing equipment, X-rays, Software development, Spatial resolution, Observatories, X-ray telescopes

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Showing 5 of 19 publications

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