Open AccessA study on spatial light modulator of bacteriorhodopsin film
Author(s) -
Yang Wen-Zheng,
Qing Yang,
Feng Chen,
Xiaoqiang Feng,
Xun Hou
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.761
Subject(s) - bacteriorhodopsin , spatial light modulator , optics , materials science , optoelectronics , visible spectrum , absorption (acoustics) , optical modulator , physics , phase modulation , chemistry , biochemistry , membrane , phase noise
An optically addressed spatial light modulator (OA-SLM) is presented by using the excellent nonlinear-optical characteristics of bacteriorhodopsin films (BR films). The BR films have two dominant photoactive states (B state and M state) which have well-separated absorption bands with maxima of B state at 570nm and M state at 412nm. Using the ratio of the shift between the forward B→Mand backwardM→Bphotoreactions, the experimental study on the conversion of coherent-to-incoherent image is realized on BR films. Using the genetic manipulation of the BRD96N film as a sample, the 670nm coherent light as a writing light and the 530nm incoherent light as a readout light, the experimental results for the resolution of 200 lines/mm and the contrast of about 2.1∶1are achieved.