ULTRAFAST EXCITON DYNAMICS IN HIGHLY ORIENTED POLYDIACETYLENE FILMS

被引：49

作者：

NISOLI, M

PRUNERI, V

DESILVESTRI, S

DELLEPIANE, G

COMORETTO, D

CUNIBERTI, C

LEMOIGNE, J

机构：

[1] UNIV GENOA,INST CHIM IND,I-16126 GENOA,ITALY

[2] INST PHYS & CHEM MAT STRASBOURG,STRASBOURG,FRANCE

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 05期

关键词：

D O I：

10.1063/1.112308

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The nonlinear optical response in uniaxially oriented films of poly[1.6-di(N-carbazolyl)-2, 4-hexadiyne], epitaxially grown on a potassium acid phthalate single crystal, has been measured by femtosecond pump and probe. A fast initial relaxation and the formation of long-lived species at high excitation intensities have been observed. A high third-order nonlinear optical susceptibility of 2 X 10(-7) esu has been estimated at 627 nm. The effects of sample orientation on the relaxation dynamics have also been investigated.

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页码：590 / 592

页数：3

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