NONLINEAR ANNIHILATION OF EXCITATIONS IN PHOTOSYNTHETIC SYSTEMS

被引：60

作者：

VALKUNAS, L ^{[1
]}

TRINKUNAS, G ^{[1
]}

LIUOLIA, V ^{[1
]}

VANGRONDELLE, R ^{[1
]}

机构：

[1] FREE UNIV AMSTERDAM,1081 HV AMSTERDAM,NETHERLANDS

来源：

BIOPHYSICAL JOURNAL | 1995年 / 69卷 / 03期

关键词：

D O I：

10.1016/S0006-3495(95)79986-6

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The theory of the singlet-singlet annihilation in quasi-homogeneous photosynthetic antenna systems is developed further. In the new model, the following important contributions are taken into account: 1) the finite excitation pulse duration, 2) the occupation of higher excited states during the annihilation, 3) excitation correlation effects, and 4) the effect of local heating. The main emphasis is concentrated on the analysis of pump-probe kinetic measurements demonstrating the first two above possible contributions. The difference with the results obtained from low-intensity fluorescence kinetic measurements is highlighted. The experimental data with picosecond time resolution obtained for the photosynthetic bacterium Rhodospirillum rubrum at room temperature are discussed on the basis of this theory.

引用

页码：1117 / 1129

页数：13

共 49 条

[1]

Agranovich V. M., 1980, Soviet Physics - Solid State, V22, P583

[2]

AGRANOVICH VM, 1982, ELECTRONIC EXCITATIO

[3] TRAPPING, LOSS AND ANNIHILATION OF EXCITATIONS IN A PHOTOSYNTHETIC SYSTEM .2. EXPERIMENTS WITH THE PURPLE BACTERIA RHODOSPIRILLUM-RUBRUM AND RHODOPSEUDOMONAS-CAPSULATA [J].