Advanced time average holographic method for measurement in extensive vibration amplitude range with quantitative single-pixel analysis

Pavel Psota; Vít Lédl; Petr Vojtíšek; Jan Václavík; Roman Doleček; Pavel Mokrý

doi:10.1117/12.2185059

8 May 2015 Advanced time average holographic method for measurement in extensive vibration amplitude range with quantitative single-pixel analysis

Pavel Psota, Vít Lédl, Petr Vojtíšek, Jan Václavík, Roman Doleček, Pavel Mokrý

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Proceedings Volume 9508, Holography: Advances and Modern Trends IV; 95080N (2015) https://doi.org/10.1117/12.2185059
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

In this paper we propose a time average digital holographical arrangement employing frequency shift of reference wave and its phase modulation. It results in Phase Modulated Frequency Shifted Time Average Digital Holography PMFSTADH method. This method has a potential to extend currently using frequency shifted time average digital holography to possibility of numerical analysis. It is primarily useful for measurement of great or very small amplitudes of vibration. Moreover we use acusto-optical modulators to realize frequency as well as phase modulation so we need no additional hardware in our experimental setup.

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Pavel Psota, Vít Lédl, Petr Vojtíšek, Jan Václavík, Roman Doleček, and Pavel Mokrý "Advanced time average holographic method for measurement in extensive vibration amplitude range with quantitative single-pixel analysis", Proc. SPIE 9508, Holography: Advances and Modern Trends IV, 95080N (8 May 2015); https://doi.org/10.1117/12.2185059

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KEYWORDS

Digital holography

Bessel functions

Holography

Phase shift keying

Holograms

Modulation

Phase modulation

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