Prof. Chittur S. Narayanamurthy Profile

Prof. Chittur S. Narayanamurthy

Senior Professor at Indian Institute of Space Science and Technology

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 7 October 2024 Presentation + Paper

Implementation of reference-less wavefront sensing in a grating array-based wavefront sensor

Biswajit Pathak, Jaspal Singh, C. Narayanamurthy, A. Ganesan

Proceedings Volume 13149, 131491J (2024) https://doi.org/10.1117/12.3027666

KEYWORDS: Optical gratings, Wavefronts, Wavefront sensors, Wavefront aberrations, Point spread functions, Wavefront reconstruction, Diffraction gratings, Lens arrays, Turbulence, Reconstruction algorithms

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Proceedings Article | 12 March 2024 Poster + Paper

Accurate phase reconstruction in digital holography microscopy using Fresnel biprism

Deepak Jaduvanshi, Biswajit Pathak, C. Narayanamurthy

Proceedings Volume 12852, 128520S (2024) https://doi.org/10.1117/12.3009474

KEYWORDS: Phase reconstruction, Holograms, Digital holography, Diffraction gratings, Spatial frequencies, Microscopy, Speckle, 3D image reconstruction, Red blood cells

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SPIE Journal Paper | 6 January 2021

Design of two-mirror telescope systems with freeform surfaces: modified configurations and analysis

Vishweshwar Budhiraju, Kuppuswamy Venkatesan Sriram, Chittur Narayanamurthy

JATIS, Vol. 7, Issue 01, 014002, (January 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.014002

KEYWORDS: Telescopes, Optical instrument design, Monochromatic aberrations, Mirrors, Modulation transfer functions, Optical design, Distortion, Off axis mirrors, Freeform optics, Diffraction

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SPIE Journal Paper | 14 October 2015

Measurement of optical misalignment using wavefront sensing

Naimesh Patel, Chittur Narayanamurthy

OE, Vol. 54, Issue 10, 104106, (October 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.10.104106

KEYWORDS: Monochromatic aberrations, Wavefronts, Wavefront sensors, Optical testing, Telescopes, Mirrors, Optical engineering, Ray tracing, Reconstruction algorithms, Adaptive optics

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SPIE Journal Paper | 3 November 2014

Design and development of Shack–Hartmann wavefront sensor-based testing of high-resolution optical system for earth observation

M. Senthil Kumar, Chittur Narayanamurthy, A. S. Kiran Kumar

OE, Vol. 53, Issue 11, 114101, (November 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.11.114101

KEYWORDS: Wavefronts, Zernike polynomials, Wavefront sensors, Microlens, Charge-coupled devices, Telescopes, Interferometers, Monochromatic aberrations, Error analysis, Sensors

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SPIE Journal Paper | 14 July 2014

Imaging of mass transfer process using artificial fringe deflection

Vani Chhaniwal, Chittur Subramanian Narayanamurthy, Arun Anand

OE, Vol. 53, Issue 07, 074106, (July 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.7.074106

KEYWORDS: Diffusion, Refractive index, Fringe analysis, Interferometry, Liquids, CCD cameras, Optical engineering, Binary data, Light sources, Optical components

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SPIE Journal Paper | 24 June 2014

Determination of the focal length of microlens array by spherical wavefronts

Marimuthu Senthil Kumar, Rahul Sharma, Chittur Subramanian Narayanamurthy, Alur Seelin Kiran Kumar

OE, Vol. 53, Issue 06, 064102, (June 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.6.064102

KEYWORDS: Wavefronts, Spherical lenses, Microlens, Microlens array, Charge-coupled devices, Interferometers, Aerospace engineering, Fizeau interferometers, Distance measurement, Error analysis

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SPIE Journal Paper | 4 December 2013

Focal length measurement of microlens array for Shack–Hartmann wavefront sensor using interferometer

M. Senthil Kumar, Chittur Narayanamurthy, A.S. Kiran Kumar

OE, Vol. 52, Issue 12, 124103, (December 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.12.124103

KEYWORDS: Wavefronts, Microlens, Interferometers, Charge-coupled devices, Microlens array, Spherical lenses, Error analysis, Wavefront sensors, CCD cameras, Optical engineering

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SPIE Journal Paper | 1 July 2005

Beamsplitter testing with Michelson interferometer

Vani Chhaniwal, Arun Anand, C. Narayanamurthy

OE, Vol. 44, Issue 07, 079701, (July 2005) https://doi.org/10.1117/12.10.1117/1.1951775

KEYWORDS: Beam splitters, Visibility, Sensors, Reflection, Mirrors, Wavefronts, Michelson interferometers, Photodiodes, Optical engineering, Optical communications

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Proceedings Article | 13 June 2005 Paper

Diffusion coefficient measurement of transparent liquid solutions using digital holographic interferometry

Vani Chhaniwal, Arun Anand, C. Narayanamurthy

Proceedings Volume 5856, (2005) https://doi.org/10.1117/12.612416

KEYWORDS: Diffusion, Digital holography, Holograms, Holographic interferometry, Holography, Charge-coupled devices, Refractive index, Liquids, Beam splitters, Interferometry

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Proceedings Article | 19 November 2003 Paper

Optical testing with photorefractive crystal

Arun Anand, C. Narayanamurthy

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.530382

KEYWORDS: Diffraction, Polarizers, Crystals, Beam splitters, Collimation, Optical testing, Laser crystals, Two wave mixing, Diffraction gratings, Modulation

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Proceedings Article | 19 November 2003 Paper

Diffusion studies in transparent liquids using optical techniques

Vani Chhaniwal, Arun Anand, C. Narayanamurthy

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.530074

KEYWORDS: Diffusion, Liquids, Interferometers, Refractive index, Industrial chemicals, Michelson interferometers, Glasses, Charge-coupled devices, Fringe analysis, Photonics

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Proceedings Article | 30 May 2003 Paper

Diffusion studies of transparent binary liquid solutions using fringe projection

Vani Chhaniwal, Arun Anand, Sanjay Girhe, N. Subrahmanyam, C. Narayanamurthy

Proceedings Volume 5144, (2003) https://doi.org/10.1117/12.500265

KEYWORDS: Diffusion, Refractive index, Fringe analysis, Liquids, Binary data, Light sources, Interferometers, Glasses, CCD cameras, Interfaces

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SPIE Journal Paper | 1 April 2003

Collimation tesing using photorefractive crystal and temporal coherence

Arun Anand, C. Narayanamurthy

OE, Vol. 42, Issue 04, (April 2003) https://doi.org/10.1117/12.10.1117/1.1554405

KEYWORDS: Crystals, Diffraction, Collimation, Laser crystals, Modulation, Bismuth, Temporal coherence, Beam splitters, Photorefraction, Refractive index

SPIE Journal Paper | 1 March 2003

Beamsplitter testing using the photorefractive effect

Arun Anand, C. Narayanamurthy

OE, Vol. 42, Issue 03, (March 2003) https://doi.org/10.1117/12.10.1117/1.1544477

KEYWORDS: Beam splitters, Diffraction, Crystals, Laser crystals, Modulation, Glasses, Photorefraction, Bismuth, Calibration, Two wave mixing

SPIE Journal Paper | 1 November 2000

Beamsplitter testing using temporal coherence

Arun Anand, C. Narayanamurthy

OE, Vol. 39, Issue 11, (November 2000) https://doi.org/10.1117/12.10.1117/1.1290682

KEYWORDS: Beam splitters, Mirrors, Temporal coherence, Michelson interferometers, Interferometry, Wavefronts, Visibility, Antireflective coatings, Photography, Reflection

SPIE Journal Paper | 1 April 1996

Collimation testing using temporal coherence

C. Narayanamurthy

OE, Vol. 35, Issue 04, (April 1996) https://doi.org/10.1117/12.10.1117/1.600604

KEYWORDS: Collimation, Mirrors, Beam splitters, Temporal coherence, Interferometers, Interferometry, Michelson interferometers, Photography, Spatial filters, Helium neon lasers

Showing 5 of 17 publications

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