Mr. Ajin Prakash Profile

Ajin Prakash

at Indian Institute of Astrophysics

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 19 July 2024 Poster

Optical design and analysis of calibration system for SCALES instrument

Amirul Hasan, Ravinder K. Banyal, Renate Kupke, Andrew J. Skemer, Ajin Prakash, Sivarani Thirupathi, Deno Stelter, Ramya Sethuram, Arun Surya, Nick MacDonald, Steph Sallum, Mackenzie Lach, Scott Lilley

Proceedings Volume 13096, 130966X (2024) https://doi.org/10.1117/12.3019833

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Proceedings Article | 18 July 2024 Presentation + Paper

SCALES status report

R. Deno Stelter, Andrew Skemer, Stephanie Sallum, Nick MacDonald, Renate Kupke, Christopher Ratliff, Cyril Bourgenot, Gerald Cabak, Michael Gonzales, Cristian Rodriguez, Aaron Hunter, Ravinder Banyal, Thirupathi Sivarani, Michael Fitzgerald, Marc Kassis, Olivier Absil, Carlos Alvarez, Natatsha Batalha, Marc-André Boucher, Timothy Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, William Deich, Devika Dicakar, Étienne Gauvin, Thomas Greene, Armirul Hasan, Philip Hinz, Rebecca Jensen-Clem, Christopher Johnson, Govinda K. V., Isabel Kain, Mackenzie Lach, Jean-Thomas Landry, Michael Liu, Jim Lyke, Kenneth Magone, Eduardo Marin, Raquel Martinez, Dimitri Mawet, Rosalie McGurk, Brittany Miles, Ajin Parkash, Dale Sandford, Ramya Sethuram, Patrick Sheehan, Ji Man Sohn, Jordan Stone, Arun Surya, Hari Varshney, Eric Wang

Proceedings Volume 13096, 1309619 (2024) https://doi.org/10.1117/12.3020806

KEYWORDS: Mirrors, Cryostats, Coronagraphy, Spectrographs, Telescopes, Imaging systems, Exoplanets

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Proceedings Article | 18 July 2024 Poster + Paper

A multi-functional fiber positioning system for extremely large telescopes

Manjunath Bestha, T. Sivarani, Arun Surya, Sudharsan Yadav, Athira Unni, Parvathy M., Devika Divakar, S. Sriram, Ajin Prakash, Amirul Hasan

Proceedings Volume 13096, 1309661 (2024) https://doi.org/10.1117/12.3019098

KEYWORDS: Design, Spectroscopy, Telescopes, Mirrors, Large telescopes, Spectrographs, Astronomical imaging, Dichroic mirrors, Dispersion, Optical fibers

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Proceedings Article | 4 October 2023 Poster + Paper

Atmospheric dispersion corrector for a multi-object spectroscopic mode of HROS-TMT

Manjunath Bestha, Amirul Hasan, Devika Divakar, Arun Surya, S. Sriram, T. Sivarani, Ajin Prakash, Parvathy M., Sudharshan Yadav

Proceedings Volume 12677, 126770Q (2023) https://doi.org/10.1117/12.2677192

KEYWORDS: Multiplexing, Mechanical positioning systems, Dispersion, Telescopes, Mirrors, Thirty Meter Telescope, Spectroscopy, Prisms, Design and modelling, Tolerancing, Spectroscopic atmospheric monitoring techniques

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Proceedings Article | 29 August 2022 Presentation + Paper

Design of an IR imaging channel for the Keck Observatory SCALES instrument

Ravinder K. Banyal, Armirul Hasan, Reni Kupke, Hari Mohan Varshney, Ajin Prakaesh, T. Sivarani, Andy J. Skemer, Nick MacDonald, Steph Sallum, Will Deich, Michael P. Fitzgerald, K. V. Govinda, Chris Ratliff, Ramya Sethuram, Deno Stelter, Arun Surya, Eric Wang

Proceedings Volume 12188, 121881U (2022) https://doi.org/10.1117/12.2630696

KEYWORDS: Imaging systems, Sensors, Mirrors, Iterated function systems, Exoplanets, Image filtering, Computer aided design, Coronagraphy, Telescopes, Adaptive optics

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Proceedings Article | 29 August 2022 Presentation + Paper

Design of SCALES: a 2-5 micron coronagraphic integral field spectrograph for Keck Observatory

Andrew Skemer, R. Deno Stelter, Stephanie Sallum, Nicholas MacDonald, Renate Kupke, Christopher Ratliff, Ravinder Banyal, Amirul Hasan, Hari Mohan Varshney, Arun Surya, Ajin Prakaesh, Sivarani Thirupathi, Ramya Sethuram, Govinda K.V., Michael Fitzgerald, Eric Wang, Marc Kassis, Olivier Absil, Carlos Alvarez, Natasha Batalha, Marc-André Boucher, Cyril Bourgenot, Timothy Brandt, Zackery Briesemeister, Katherine de Kleer, Imke de Pater, William Deich, Devika Divakar, Guillaume Filion, Étienne Gauvin, Michael Gonzales, Thomas Greene, Philip Hinz, Rebecca Jensen-Clem, Christopher Johnson, Isabel Kain, Gabriel Kruglikov, Mackenzie Lach, Jean-Thomas Landry, Jialin Li, Michael Liu, James Lyke, Kenneth Magnone, Eduardo Marin, Emily Martin, Raquel Martinez, Dimitri Mawet, Brittany Miles, Dale Sandford, Patrick Sheehan, Ji Man Sohn, Jordan Stone

Proceedings Volume 12184, 121840I (2022) https://doi.org/10.1117/12.2630577

KEYWORDS: Exoplanets, Spectrographs, Planets, Sensors, Coronagraphy, Imaging systems, Adaptive optics, Mirrors, Spectroscopy

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Proceedings Article | 13 December 2020 Poster + Paper

Spectroscopic Investigation Of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects from a stable space platform

Bharat Chandra, Mikhail Sachkov, Shanti Prabha, Ajin Prakash, Binukumar Nair, Margarita Safonova, Richa Rai, Rekhesh Mohan, Jayant Murthy, Vladimir Shmagin

Proceedings Volume 11444, 1144476 (2020) https://doi.org/10.1117/12.2563051

KEYWORDS: Spectroscopes, Ultraviolet radiation, Absorption, Electromagnetism, Signal to noise ratio, Clouds, Hydrogen, Spectrographs, Spectral resolution

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Proceedings Article | 6 July 2018 Presentation + Paper

Opto-mechanical assembly and ground calibration of LUCI

Joice Mathew, B. Nair, S. Sriram, P. U. Kamath, Ajin Prakash, Mayuresh Sarpotdar, S. Ambily, Nirmal K., A. G. Sreejith, Margarita Safonova, Jayant Murthy, Noah Brosch

Proceedings Volume 10699, 106992V (2018) https://doi.org/10.1117/12.2312733

KEYWORDS: Ultraviolet radiation, Space telescopes, Telescopes, Mirrors, Calibration, Collimators, Ultraviolet telescopes, Charge-coupled devices, Aerospace engineering, Sensors

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SPIE Journal Paper | 14 December 2016

Pointing system for the balloon-borne astronomical payloads

Kaipacheri Nirmal, Sreejith Aickara Gopinathan, Joice Mathew, Mayuresh Sarpotdar, Ambily Suresh, Ajin Prakash, Margarita Safonova, Jayant Murthy

JATIS, Vol. 2, Issue 04, 047001, (December 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.4.047001

KEYWORDS: Sun, Astronomy, Sensors, Imaging systems, Gyroscopes, Magnetometers, Control systems, Magnetism, Global Positioning System, Cameras

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Proceedings Article | 9 August 2016 Paper

Balloon UV experiments for astronomical and atmospheric observations

Sreejith A. G., Joice Mathew, Mayuresh Sarpotdar, Nirmal K., Ambily S., Ajin Prakash, Margarita Safonova, Jayant Murthy

Proceedings Volume 9908, 99084E (2016) https://doi.org/10.1117/12.2232246

KEYWORDS: Astronomy, Ultraviolet radiation, Atmospheric chemistry, Spectrographs, Comets, CMOS sensors, Sensors, Star sensors, Telescopes, Space telescopes

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Proceedings Article | 22 July 2016 Paper

Noise modeling and analysis of an IMU-based attitude sensor: improvement of performance by filtering and sensor fusion

Nirmal K., Sreejith A. G., Joice Mathew, Mayuresh Sarpotdar, Ambily Suresh, Ajin Prakash, Margarita Safonova, Jayant Murthy

Proceedings Volume 9912, 99126W (2016) https://doi.org/10.1117/12.2234255

KEYWORDS: Sensors, Calibration, Sensors, Gyroscopes, Performance modeling, Sensor performance, Sensor fusion, Seaborgium, Error analysis, Stochastic processes, Interference (communication)

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Proceedings Article | 22 July 2016 Paper

A soft actuator for Prototype Segmented Mirror Telescope

Prasanna Deshmukh, Padmakar Parihar, Deepta Sundar Mishra, Ajin Prakash, P. M. M. Kemkar

Proceedings Volume 9912, 991207 (2016) https://doi.org/10.1117/12.2231172

KEYWORDS: Actuators, Telescopes, Segmented mirrors, Mirrors, Prototyping, Control systems, Sensors, Relays, Calibration, Computer programming

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Proceedings Article | 18 July 2016 Paper

Near UV imager with an MCP-based photon counting detector

S. Ambily, Joice Mathew, Mayuresh Sarpotdar, A. G. Sreejith, K. Nirmal, Ajin Prakash, Margarita Safonova, Jayant Murthy

Proceedings Volume 9905, 990539 (2016) https://doi.org/10.1117/12.2232435

KEYWORDS: Ultraviolet radiation, Exoplanets, Spectroscopy, Planets, Homodyne detection, Atmospheric modeling, Spectral resolution, Space telescopes, Telescopes, Interferometers

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Proceedings Article | 18 July 2016 Paper

An ultraviolet imager to study bright UV sources

Joice Mathew, Ajin Prakash, Mayuresh Sarpotdar, A. G. Sreejith, Margarita Safonova, Jayant Murthy

Proceedings Volume 9905, 990532 (2016) https://doi.org/10.1117/12.2232977

KEYWORDS: Sensors, Ultraviolet radiation, Mirrors, Spectroscopy, Cameras, Imaging systems, Telescopes, Space telescopes, Astronomical imaging, Optical filters

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Showing 5 of 14 publications

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