Holographic techniques for recording ultrafast events

Martin Centurion; Zhiwen Liu; Gregory J. Steckman; George Panotopoulos; John H. Hong; Demetri Psaltis

doi:10.1117/12.474957

9 July 2002 Holographic techniques for recording ultrafast events

Martin Centurion, Zhiwen Liu, Gregory J. Steckman, George Panotopoulos, John H. Hong, Demetri Psaltis

Proceedings Volume 4737, Holography: A Tribute to Yuri Denisyuk and Emmett Leith; (2002) https://doi.org/10.1117/12.474957
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

In this paper we report on a holographic method used to record fast events in the nanosecond time scale. Several frames of the expansion of shock waves in air and in a polymer sample are recorded holographically in a single shot experiment, using a pulse train generated with a single pulse from a Q-switched Nd:YAG laser. The time resolution is limited by the laser pulse width, which is 5.9 ns. The different frames are recorded on the holographic material using angle multiplexing. Two cavities are used to generate the signal and reference pulses at different angles. We also present a method in which the recording material is replaced by a CCD camera. In this method the holograms are recorded directly on the CCD and digitally reconstructed. The holograms are recorded on a single frame of the CCD camera and then digitally separated and reconstructed.

Citation Download Citation

Martin Centurion, Zhiwen Liu, Gregory J. Steckman, George Panotopoulos, John H. Hong, and Demetri Psaltis "Holographic techniques for recording ultrafast events", Proc. SPIE 4737, Holography: A Tribute to Yuri Denisyuk and Emmett Leith, (9 July 2002); https://doi.org/10.1117/12.474957

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