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Holographic techniques for recording ultrafast events

Centurion, Martin and Liu, Zhiwen and Steckman, Gregory J. and Panotopoulos, George and Hong, John and Psaltis, Demetri (2002) Holographic techniques for recording ultrafast events. In: Holography: A Tribute to Yuri Denisyuk and Emmett Leith. Proceedings of SPIE. No.4737. Society of Photo-optical Instrumentation Engineers , Bellingham, WA, pp. 44-50.

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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.

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Additional Information:© 2002 Society of Photo-optical Instrumentation Engineers. This work is supported by the Air Force Office of Scientific Research and the NSF Neuromorphic Engineering Research Center.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Center for Neuromorphic Systems Engineering, CaltechUNSPECIFIED
Subject Keywords:Holography, nanosecond events, shockwave, CCD hologram, pulsed hologram, single shot
Series Name:Proceedings of SPIE
Issue or Number:4737
Record Number:CaltechAUTHORS:20180925-144608836
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Official Citation:Martin Centurion, Martin Centurion, Zhiwen Liu, Zhiwen Liu, Gregory J. Steckman, Gregory J. Steckman, George Panotopoulos, George Panotopoulos, John H. Hong, John H. Hong, Demetri Psaltis, Demetri Psaltis, } "Holographic techniques for recording ultrafast events", Proc. SPIE 4737, Holography: A Tribute to Yuri Denisyuk and Emmett Leith, (9 July 2002); doi: 10.1117/12.474957;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89931
Deposited By: Tony Diaz
Deposited On:25 Sep 2018 21:54
Last Modified:16 Nov 2021 00:39

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