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Second and third order Nonlinear Optical Properties ofCrystalline Inorganic / Organic Complexes.

Published online by Cambridge University Press:  21 February 2011

Henry O. Marcy
Affiliation:
Rockwell International Science Center, P.O. Box 1085, Thousand Oaks, CA 91358
Leslie. F. Warren
Affiliation:
Rockwell International Science Center, P.O. Box 1085, Thousand Oaks, CA 91358
Laura E. Davis
Affiliation:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550
Mark S. Webb
Affiliation:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550
Stephan P. Velsko
Affiliation:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550
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Abstract

The properties for members of a new class of nonlinear optical (NLO)materials which stoichiometrically incorporate organic and inorganicconstituents into a single crystalline lattice are reported. Recent resultsfor our synthetic, crystal growth, and optical studies suggest that a numberof these relatively transparent “semiorganic” compounds have significantsecond and/or third order NLO responses and often display favorable crystalgrowth morphologies.

The prototype material of this class, zinc tris(thiourea) sulfate, or ZTS,has a UV cutoff at about 325 nm, can be readily grown to cm3sizes, and has been shown to be a highly efficient Type II frequency doublerfor 1064 nm Nd:YAG laser radiation. ZTS also possesses a moderate thirdorder nonlinear optical response (ca. 0.1 × CS2) which occurs onat least a picosecond time scale as determined by degenerate four-wavemixing (DFWM) experiments at 532 nm.

Refractive index, second harmonic generation, and DFWM data for a number ofthese new compounds are presented.

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