NONLINEAR OPTICAL STUDIES OF GRADED ENYNE OLIGOMERS

被引：20

作者：

BYRNE, HJ ^{[1
]}

BLAU, W ^{[1
]}

GIESA, R ^{[1
]}

SCHULZ, RC ^{[1
]}

机构：

[1] INST ORGAN CHEM,W-6500 MAINZ,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 167卷 / 05期

关键词：

D O I：

10.1016/0009-2614(90)85036-C

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Investigations of the linear and nonlinear optical properties of a series of enyne oligomers in solution are carried out. Linear absorption spectra are compared to predictions of the free-electron model. Degenerate forward four-wave mixing is carried out at 1.064 μm with pulses of 50 ± 25 ps. Intensity dependences reveal a well-behaved third-order process. Measurements of χ(3) as a function of concentration reveal contributions from both real and imaginary components which may not be accounted for by the free-electron model. Real components are found to be negative at longer chain lengths. Imaginary components are attributed to localised virtual transitions. © 1990.

引用

页码：484 / 489

页数：6

共 20 条

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