Optical monlinearity of aminobenzophenone derivatives

Details Optical monlinearity of aminobenzophenone derivatives Optical monlinearity of aminobenzophenone derivatives

1987-11-17

1990-03-20

Laroche, Eugene R.

G02F 123, G02F 137

Patent

active

049096087

ABSTRACT:
Certain benzophenone derivatives having acentric crystalline space groups are disclosed as second-order nonlinear optical materials. The second harmonic signal of such derivatives is enhanced for compounds containing an electron-donating group attached to one of the benzene rings and which is para relative to the carbonyl group of the benzophenone derivative. Benzophenone hydrazone, 4-aminobenzophenone, and 4-amino-3-nitrobenzophenone are exemplary benzophenone derivatives according to the invention. Also disclosed are nonlinear optical devices which include single crystals of the benzophenone derivatives.

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