Whole-field real-time LDV for sub-nanometer characterization of LAM dynamic

Vladimir Markov; Ron Eng; Stephen Kupiec; Juan Abejar

doi:10.1117/12.2676176

4 October 2023 Whole-field real-time LDV for sub-nanometer characterization of LAM dynamic

Vladimir Markov, Ron Eng, Stephen Kupiec, Juan Abejar

Author Affiliations +

Proceedings Volume PC12677, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV; PC126770E (2023) https://doi.org/10.1117/12.2676176
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

Large Aperture Mirrors (LAMs) are critical elements of both space and ground-based telescopes. The need exists to characterize both the vibrational response and spatio-temporal modes of a membrane-based LAM’s structure. This data is essential to LAM’s design, configuration and performance when placed in the relevant space or ground operational environment. This presentation discusses the WF-LDV - a newly developed instrument capable of real-time evaluation of LAM’s vibrational spectra and spatial dynamics of its membrane-based mirror surface. WF-LDV allows real time sub-nanometer accuracy in measuring the displacement of the mirror over a multi-kHz frequency range. Our innovative WF-LDV design supports multiple modes of optical measurement tailored specifically for LAM design.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Vladimir Markov, Ron Eng, Stephen Kupiec, and Juan Abejar "Whole-field real-time LDV for sub-nanometer characterization of LAM dynamic", Proc. SPIE PC12677, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV, PC126770E (4 October 2023); https://doi.org/10.1117/12.2676176

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