Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2005-06-07
2005-06-07
Lee, John R. (Department: 2881)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C359S330000, C359S326000
Reexamination Certificate
active
06903341
ABSTRACT:
There are disclosed a nonlinear optical crystal1which can generate a THz wave by a parametric effect; a pump light incidence apparatus12for allowing a pump light2to be incident upon the nonlinear optical crystal; and a seed light injection apparatus14for injecting a seed light5having a variable frequency in a generation direction of an idler light3generated by the pump light. The seed light injection apparatus14comprises angle dispersion compensation means16set so that an incidence angle θINof the seed light upon the nonlinear optical crystal1substantially equals to a desired phase matching condition regardless of a wavelength.
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B.A. Richman et al.: “All-Prism Achromatic Phase Matching for Tunable Second-Harmonic Generation”, Article, May 20, 1999, pp. 3316-3323, vol. 38, Issue 15, Applied Optics, Optical Society of America, Washington, U.S.
O.E. Martinez: “Achromatic Phase Matching for Second Harmonic Generation of Femtosecond Pulses”, Article, Dec. 1, 1989, pp. 2464-2468, vol. 25, Issue 12, IEEE Journal of Quantum Electronics, IEEE Inc. New York, U.S.
European Search Report completed Jul. 7, 2003 in EP 03 00 7799 including an English Language Abstract of EP 03 00 7799.
Imai Kazuhiro
Ito Hiromasa
Kawase Kodo
Gill Erin-Michael
Griffin & Szipl, P.C.
Riken
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