TY - JOUR
T1 - All-optical continuous-tunable image switch based on nonlinear photoinduced anisotropy in bacteriorhodopsin film
AU - Chen, Guiying
AU - Shang, Xiaodong
AU - Yang, Guang
AU - Hao, Zhao Feng
AU - Xu, Xuxu
AU - Zhang, Chunping
AU - Song, Q. W.
N1 - Funding Information:
This work was supported by the Foundation of South China Sea Institute of Oceanology under Grant no.06SC021001 and the Natural Science Foundation of China under Grant no. 10774152 and Grant from Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, China.
PY - 2009/9
Y1 - 2009/9
N2 - Using nonlinear photoinduced anisotropy in bacteriorhodopsin (bR) film, we presented and demonstrated an image switch in which the output can be tuned continuously by the intensity of a pumping beam. A laser with wavelength 532 nm was used as the pumping beam, and a He-Ne laser at wavelength 632.8 nm was used as the probe beam. Without pumping light, a little of polarized probe beam can transmit the crossed polarizers and the output is very low. With the presence of pumping light, owing to photoinduced anisotropy in the bR film, a portion of the probe beam transmits the crossed polarizers, depending on the intensity of the pumping beam. For the low-intensity probe beam (0.44 mW/cm2), the output is dependent on a wide range of pumping beam (2-30 mW/cm2). On the contrary, for the high-intensity probe beam (0.80 mW/cm2), the output is dependent on a narrow range of pumping beam (2-7 mW/cm2).
AB - Using nonlinear photoinduced anisotropy in bacteriorhodopsin (bR) film, we presented and demonstrated an image switch in which the output can be tuned continuously by the intensity of a pumping beam. A laser with wavelength 532 nm was used as the pumping beam, and a He-Ne laser at wavelength 632.8 nm was used as the probe beam. Without pumping light, a little of polarized probe beam can transmit the crossed polarizers and the output is very low. With the presence of pumping light, owing to photoinduced anisotropy in the bR film, a portion of the probe beam transmits the crossed polarizers, depending on the intensity of the pumping beam. For the low-intensity probe beam (0.44 mW/cm2), the output is dependent on a wide range of pumping beam (2-30 mW/cm2). On the contrary, for the high-intensity probe beam (0.80 mW/cm2), the output is dependent on a narrow range of pumping beam (2-7 mW/cm2).
KW - Bacteriorhodopsin
KW - Continuous-tunable image switch
KW - Photoinduced anisotropy
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U2 - 10.1016/j.ijleo.2008.03.001
DO - 10.1016/j.ijleo.2008.03.001
M3 - Article
AN - SCOPUS:68949172174
SN - 0030-4026
VL - 120
SP - 721
EP - 725
JO - Optik
JF - Optik
IS - 14
ER -