SPONTANEOUS PATTERN-FORMATION IN A THIN-FILM OF BACTERIORHODOPSIN WITH MIXED ABSORPTIVE DISPERSIVE NONLINEARITY

被引：28

作者：

GLUCKSTAD, J

SAFFMAN, M

机构：

[1] Department of Optics and Fluid Dynamics, Risø National Laboratory, Roskilde

来源：

OPTICS LETTERS | 1995年 / 20卷 / 06期

关键词：

D O I：

10.1364/OL.20.000551

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have observed the spontaneous formation of transverse spatial patterns in a thin film of bacteriorhodopsin with a feedback mirror. Bacteriorhodopsin has a mixed absorptive-dispersive nonlinearity at the wavelength used in the experiments (633 nm). Threshold values of the incident intensity for observation of pattern formation are found from a linear stability analysis of a model that describes bacteriorhodopsin as a sluggish saturable nonlinear medium with a complex Kerr coefficient. The calculated threshold intensity is in good agreement with the experimental observations, and the patterns are predicted to be frequency offset from the pump radiation.

引用

页码：551 / 553

页数：3

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