An all-optical time-delay relay based on a bacteriorhodopsin film |
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Authors: | Chen Gui-Ying Xu Xu-Xu Zhang Chun-Ping Qi Shen-Wen and Song Qi-Wang |
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Institution: | Department of Electrical Engineering and Computer Science,
Syracuse University, Syracuse, NY 13224-1240, USA; Department of Physics, Dezhou University, Shandong
253023, China; Key Laboratory of Tropical Marine Environmental Dynamics, South
China Sea Institute of Oceanology,
Chinese Academy of Sciences, Guangzhou
510301, China; The Key Laboratory of Weak Light Nonlinear Photonics
(Nankai University, Tianjin 300457), Ministry
of Education, China |
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Abstract: | Using a special property of dynamic
complementary-suppression-modulated transmission (DCSMT) in the
bacteriorhodopsin (bR) film, we have demonstrated an all-optical
time-delay relay. To extend our work, the relationship
between the delay time of the all-optical time-delay relay and
parameters of a bR film is numerically studied. We show how the
delay time changes with the product of concentration and thickness
(PCT) of a bR film. Furthermore, the shortest and longest delay
times are given for the relay of `switch off'. The saturable delay
time and maximum delay-time of `switch on' are also given. How the
wavelengths (632.8, 568, 533 and 412\,nm) and intensities of the
illuminating light influence the delay time is also discussed. The
simulation results are useful for optimizing the design of
all-optical time-delay relays. |
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Keywords: | bR film all-optical time-delay relay dynamic complementary-suppression-modulated transmission |
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