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PHASES AND 3RD-ORDER OPTICAL NONLINEARITIES IN TETRAVALENT METALLOPHTHALOCYANINE THIN-FILMS

被引：91
作者：
HOSODA, M
WADA, T
YAMADA, A
GARITO, AF
SASABE, H
机构：
[1] UNITIKA CO LTD, CTR RES & DEV, UJI, KYOTO 611, JAPAN
[2] UNIV PENN, DEPT PHYS, PHILADELPHIA, PA 19104 USA
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 8B期
关键词：
METALLOPHTHALOCYANINE; NONLINEAR OPTICAL PROPERTY; 3RD-HARMONIC GENERATION; 3RD-ORDER OPTICAL SUSCEPTIBILITY; PHASE TRANSITION; MOLECULAR STACKING;
D O I：
10.1143/JJAP.30.L1486
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The third-order optical susceptibilities chi-1111(3)(-3-omega; omega, omega, omega)s for two different phases in vanadyl and titanyl phthalocyanine (VOPc and TiOPc) vacuum-deposited thin films are determined by optical third-harmonic generation (THG) measurements at wavelengths 1543 nm and 1907 nm. Thermal annealing causes a phase transition which accompanies a red shift in their absorption spectra and an increase in the chi-(3) value of 2-5 times in VOPc and TiOPc films. The enhancement of the third-order optical nonlinearities in tetravalent phthalocyanine films is discussed in terms of molecular packing.
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页码：L1486 / L1488
页数：3
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