Picometer-range characterization of LAM dynamics with whole-field LDV

Vladimir Markov; Ron Eng; Stephen Kupiec; Juan Abejar; Stefan Forschner

doi:10.1117/12.2634242

3 October 2022 Picometer-range characterization of LAM dynamics with whole-field LDV

Vladimir Markov, Ron Eng, Stephen Kupiec, Juan Abejar, Stefan Forschner

Proceedings Volume 12221, Optical Manufacturing and Testing XIV; 122210S (2022) https://doi.org/10.1117/12.2634242
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

Large Aperture Mirrors (LAMs) are essential for space telescopes and ground-based observatories. The need exists in characterization of multiple modality dynamics of recently developed LAM’s membrane mirror structure. Knowledge of this dynamics is essential to LAM’s design, balancing and operational efficacy of future systems. This presentation discusses the Whole-Field Laser Doppler Vibrometer (WF-LDV) - the newly developed instrument capable of instant characterization of LAM’s vibrational spectra and full dynamic of its membrane-like mirror surface. WF-LDV allows a picometer-scale accuracy in the multi-kHz frequency band. Innovative WF-LDV design supports measurements of multiple modalities of optical metrology tailored specifically for LAM design.

Conference Presentation

Citation Download Citation

Vladimir Markov, Ron Eng, Stephen Kupiec, Juan Abejar, and Stefan Forschner "Picometer-range characterization of LAM dynamics with whole-field LDV", Proc. SPIE 12221, Optical Manufacturing and Testing XIV, 122210S (3 October 2022); https://doi.org/10.1117/12.2634242

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