Photoinduced birefringence in bacteriorhodopsin films was investigated using pump–probe method and its application for photonic switching explored. A diode-pumped second-harmonic YAG laser was used as a pumping beam and a diode laser at was used as a probing beam. The pump and probe beams overlap at the sample. Without the pumping beam, the probing light cannot transmit the analyzer to the detector. However, due to the photoinduced anisotropy, a portion of the probing light is detected when the pumping beam is present. Since is far from the absorption peak of the ground state, the photoinduced birefringence predominates. Using the intensity-dependent photoinduced birefringence in a bacteriorhodopsin film, we have demonstrated a photonic switch with contrast ratio, rise time and decay time.
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22 March 2004
Research Article|
March 22 2004
Photonic switching based on the photoinduced birefringence in bacteriorhodopsin films
Yuhua Huang;
Yuhua Huang
School of Optics, University of Central Florida, Orlando, Florida 32816
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Shin-Tson Wu;
Shin-Tson Wu
School of Optics, University of Central Florida, Orlando, Florida 32816
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Youyuan Zhao
Youyuan Zhao
Department of Optics and Engineering, Fudan University, Shanghai, 200433, People’s Republic of China
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Appl. Phys. Lett. 84, 2028–2030 (2004)
Article history
Received:
September 08 2003
Accepted:
January 26 2004
Citation
Yuhua Huang, Shin-Tson Wu, Youyuan Zhao; Photonic switching based on the photoinduced birefringence in bacteriorhodopsin films. Appl. Phys. Lett. 22 March 2004; 84 (12): 2028–2030. https://doi.org/10.1063/1.1688456
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