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4 October 2023 Whole-field real-time LDV for sub-nanometer characterization of LAM dynamic
Vladimir Markov, Ron Eng, Stephen Kupiec, Juan Abejar
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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.
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(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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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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KEYWORDS
Astronomical imaging
Doppler effect
Laser optics
Design and modelling
Mirrors
Equipment
Vibration
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