Nonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using same
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United States of America Patent
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Aug 19, 1997
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app pub date -
Jun 6, 1995
filing date -
Jul 13, 1992
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Abstract
A nonlinear optical material composed of a polyimide obtained from a diamine and/or a diacid anhydride or dithioacid anhydride substituted by a portion having a nonlinear optical effect or of molecules having a benzocyclobutene structure substituted at the portions having an nonlinear linear optical effect.
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