Picosecond kinetics and reverse saturable absorption of meso-substituted tetrabenzoporphyrins

被引：81

作者：

Chen, PL

Tomov, IV

Dvornikov, AS

Nakashima, M

Roach, JF

Alabran, DM

Rentzepis, PM

机构：

[1] UNIV CALIF IRVINE,DEPT CHEM,IRVINE,CA 92717

[2] USA,NATICK RES DEV & ENGN CTR,NATICK,MA 01760

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 44期

关键词：

D O I：

10.1021/jp9615161

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：

The mechanism of reverse saturable absorption of meso-substituted tetrabenzoporphyrins was studied by means of picosecond transient spectroscopy. Characteristic (1)(pi,pi*), (3)(pi,pi*), and (d,d) transitions have been observed. The kinetics of the excited states vary with metal substitution. The nonlinear transmission of benzoporphyrins was measured, and the excited-state absorption was determined to be the dominant optical limiting mechanism. The results agreed very well with a five-level model.

引用

页码：17507 / 17512

页数：6

共 36 条

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