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Published February 4, 2002 | public
Journal Article Open

Holographic recording of fast phenomena


We report on a holographic method for recording fast events whose speed is limited by the laser pulse duration if the recording material has sufficient sensitivity to reliably record a frame of the fast event with a single pulse. The method we describe uses the angular selectivity of thick holograms to resolve frames that are recorded with adjacent pulses. Two specially designed cavities are used to generate the signal and reference pulse trains. We experimentally demonstrate the system by recording laser induced shock waves with a temporal resolution of 5.9 ns, limited by the pulse width of the Q-switched Nd:yttrium–aluminum–garnet laser used in the experiments.

Additional Information

©2002 American Institute of Physics. (Received 29 August 2001; accepted 19 November 2001) This work is supported by the Air Force Office of Scientific Research and the NSF Neuromorphic Engineering Research Center.


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