BACTERIORHODOPSIN FILMS AS SPATIAL LIGHT MODULATORS FOR NONLINEAR-OPTICAL FILTERING

被引：118

作者：

THOMA, R ^{[1
]}

HAMPP, N ^{[1
]}

BRAUCHLE, C ^{[1
]}

OESTERHELT, D ^{[1
]}

机构：

[1] MAX PLANCK INST BIOCHEM,W-8033 MARTINSRIED,GERMANY

来源：

OPTICS LETTERS | 1991年 / 16卷 / 09期

关键词：

D O I：

10.1364/OL.16.000651

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The application of dry purple membrane films for nonlinear-optical filtering is described. The biological photochrome bacteriorhodopsin (BR) is contained in the purple membrane (PM) from Halobacterium halobium. BR has two dominant photoactive states, B and M, which have well-separated absorption bands with maxima at 570 nm (B) and 412 nm (M). Since the local transmission of a PM film depends on the ratio between the forward (B --> M) and the backward (M --> B) photoreactions, PM films can be used as light-controlled absorptive spatial light modulators. A model describing the nonlinear transmission of PM films containing the wild-type form of BR or one of its mutated variants, e.g., BR(D96N), and examples of their application in spatial filtering, e.g., edge enhancement, are presented.

引用

页码：651 / 653

页数：3

共 13 条

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