Effect of reconstruction beam polarization on the kinetics anisotropic gratings in bacteriorhodopsin

Autor(en)

Peng Gao, B Yao, Junhe Han, Liju Chen, Yingli Wang, Ming Lei, Romano Rupp

Abstrakt

Anisotropic gratings are recorded on bacteriorhodopsin films by two parallelly polarized beams, and the effect of the polarization orientation of the reconstructing beam on the diffraction efficiency kinetics is studied. A theoretical model for the diffraction efficiency kinetics of the anisotropic grating is developed by combining Jones-matrix and photochromic two-state theory. It is found that the polarization azimuth of the reconstructing beam produces a cosine modulation on the kinetics of the diffraction efficiency, being positive at the peak efficiency and negative for steady state. By adding auxiliary violet light during grating formation, the saturation of the grating can be restrained. As a result, the negative cosine modulation for the steady-state diffraction efficiency changes to a positive one. In addition, the steady-state diffraction efficiency is increased appreciably for all reconstructing polarization orientations.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Chinese Academy of Sciences (CAS), Zhejiang University (ZJU)

Journal

Optical Society of America. Journal A: Optics, Image Science, and Vision

Band

25

Seiten

685-691

Anzahl der Seiten

7

ISSN

1084-7529

DOI

https://doi.org/10.1364/JOSAA.25.000685

Publikationsdatum

2008

Peer-reviewed

Ja

ÖFOS 2012

103021 Optik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/61328045-6c75-4c8a-9ade-fa3145461c00