Optical: systems and elements – Optical frequency converter – Harmonic generator
Reexamination Certificate
2006-07-25
2006-07-25
Lee, John D. (Department: 2874)
Optical: systems and elements
Optical frequency converter
Harmonic generator
Reexamination Certificate
active
07081984
ABSTRACT:
Materials suitable for use in non-linear optical devices comprise morpholinium or thiomorpholinium salts of hydroxy-substituted aliphatic or aromatic carboxylic acids selected from tartaric acid and hydroxy-substituted benzoic and cinnamic acids, which salts have a non-centrosymmetric crystalline form. Preferred salts include morpholinium 3-hydroxybenzoate, morpholinium 4-hydroxybenzoate, morpholinium 3,5-dihydroxybenzoate, morpholinium 3-fluoro-4-hydroxybenzoate, dimorpholinium 2,3,5,6-tetrafluoro-4-hydroxybenzoate, morpholinium 4-(4-hydroxyphenyl)benzoate, morpholinium tartrate, morpholinium 4-hydroxycinnamate, thiomorpholinium 4-hydroxy-benzoate and thiomorpholinium 3,5-hydroxybenzoate.
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Bahra Gurmit S
Chaloner Penelope A
Dutta Lucy M
Healy William
Lee John D.
Nixon & Vanderhye P.C.
Qinetiq Limited
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