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Natarajan Venkatasubramanian
at Indian Institute of Astrophyics
SPIE Involvement:
Author
Publications (3)
SPIE Journal Paper | 17 October 2023
Ground calibration of visible emission line coronagraph on board Aditya-L1 mission
Raghavendra Prasad Budihal, Venkata Suresh Narra, Natarajan Venkatasubramanian, Pawan Kumar Somasundaram, Umesh Kamath Padavu, Shalabh Mishra, Bhavana Hegde, Sasikumar Raja Kantepalli, Jagdev Singh
JATIS, Vol. 9, Issue 04, 044001, (October 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.044001
KEYWORDS: Coronagraphy, Calibration, Equipment, Wavefront errors, Polarization, Sensors, Point spread functions, Visible radiation, Absorption, Solar processes
SPIE Journal Paper | 25 November 2022
Optical metrology on primary mirror of visible emission line coronagraph on board Aditya-L1 mission
JATIS, Vol. 8, Issue 04, 044004, (November 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.044004
KEYWORDS: Mirrors, Coronagraphy, Optical metrology, Solar processes, Scatter measurement, Optical spheres, Contamination, Coating, Autoregressive models, Reflectivity
SPIE Journal Paper | 31 August 2020
Band-limited integrated scatter measurements on super polished optical mirrors
Suresh Venkata, Raghavendra Prasad Budihal, Natarajan Venkatasubramanian, Umesh Kamath Padavu, Kathiravan Sriraman
OE, Vol. 59, Issue 08, 084106, (August 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.8.084106
KEYWORDS: Surface finishing, Scatter measurement, Frequency modulation, Fermium, Polishing, Mirrors, Integrated optics, Sensors, Optical engineering, Light scattering
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