Optical: systems and elements – Holographic system or element – Using modulated or plural reference beams
Reexamination Certificate
2005-03-01
2005-03-01
Nguyen, Thong (Department: 2872)
Optical: systems and elements
Holographic system or element
Using modulated or plural reference beams
C359S010000, C359S035000
Reexamination Certificate
active
06862121
ABSTRACT:
Holographic methods for recording fast movies 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 selectivity of multiplexed holograms to resolve frames that are recorded with adjacent pulses. Specially designed pulse generators are used to generate the signal and reference pulse trains. We experimentally demonstrate the system by making movies of laser induced shock waves with a temporal resolution of 5.9 ns, limited by the pulse width of the Q-switched Nd:YAG laser used in the experiments.
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Centurion Martin
Haensch Theodore W.
Hong John
Liu Zhiwen
Psaltis Demetri
California Institute of Technolgy
Dawes Daniel L.
Lavarias Arnel C.
Myers Dawes Andras & Sherman LLP
Nguyen Thong
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