Chin. Phys. Lett.  2003, Vol. 20 Issue (12): 2161-2164    DOI:
Original Articles |
A Novel Optical Filter for Removing Bright-Background Using an Enhanced Bacteriorhodopsin Thin Film
ZHANG Chun-Ping1;GU Li-Qun1;CHEN Gui-Ying1;GUO Zong-Xia1;FU Guang-Hua2;ZHANG Guang-Yin1;ZHANG Tian-Hao1;LI Yu-Dong1;Q. Wang SONG3
1Photonics Center, Nankai University, Tianjin 300071 2Medical College for Tianjin Workers, Tianjin 300152 3Department of Electrical Engineering and Computer Science, Syracuse University, Syracuse, NY 13244, USA
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ZHANG Chun-Ping, GU Li-Qun, CHEN Gui-Ying et al  2003 Chin. Phys. Lett. 20 2161-2164
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Abstract We found that the bacteriorhodopsin (bR) film has a special property of complementary suppression modulated transmission (CSMT). The yellow and the blue beams can be suppressed mutually when both the beams illuminate the bR film simultaneously. When the blue beam carrying an image with a bright-background noise illuminates on the bR film and then a yellow beam with uniform intensity distribution illuminates the same area, the bright-background can be removed due to the CSMT. In our demonstration, the pattern model is letters “VLSI”with ground noise of small words and the ground noise is removed from the pattern by the new optical filter.
Keywords: 42.30.Va      42.50.Gy     
Published: 01 December 2003
PACS:  42.30.Va (Image forming and processing)  
  42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2003/V20/I12/02161
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ZHANG Chun-Ping
GU Li-Qun
CHEN Gui-Ying
GUO Zong-Xia
FU Guang-Hua
ZHANG Guang-Yin
ZHANG Tian-Hao
LI Yu-Dong
Q. Wang SONG
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