Spatio-temporal study of non-degenerate two-wave mixing in bacteriorhodopsin films

被引:2
|
作者
Blaya, Salvador [1 ]
Gonzalez, Alejandro [1 ]
Acebal, Pablo [1 ]
Carretero, Luis [1 ]
机构
[1] Univ Miguel Hernandez, Dept Ciencia Mat Opt & Tecnol Elect, Avda Univ, Alicante 3202, Spain
来源
OPTICS EXPRESS | 2016年 / 24卷 / 22期
关键词
ABSORPTION GRATINGS; PHASE CONJUGATION; REFRACTIVE-INDEX; GLASS; INSTABILITIES; DIFFRACTION; SOLITONS; PROTEIN; MODEL;
D O I
10.1364/OE.24.025565
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A spatio-temporal analysis of non-degenerate two-wave mixing in a saturable absorber, such as bacteriorhodopsin (bR) film, is performed. To do this, a theoretical model describing the temporal variation of the intensities is developed by taking into account the dielectric constant as a function of bR population. A good agreement between theory and experimental measurements is obtained. Thus, the dependence of the optical gain and the main dielectric constant parameters are studied at different intensities and frequencies. As a result, the best intensity-frequency zones where higher coupling is reached are proposed, and it is also demonstrated that non-uniform patterns, which evolve over time as a function of frequency difference, can be observed. (C) 2016 Optical Society of America
引用
收藏
页码:25565 / 25581
页数:17
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