a Laboratory of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials, Tianjin Key Laboratory of Photonics Material and Technology for Information Science, Photonics Centre, Institute of Physics, Nankai University, Tianjin 300071, China; b Department of Electrical Engineering and Computer Science, Syracuse University Syracuse, NY 13244, USA
Abstract Based on self-diffraction in bacteriorhodopsin (bR) film, we propose all-optical NOT, XOR, half adder and XNOR logic operations. Using the relation between diffraction light and the polarization states of recording beams, we demonstrate NOT and XNOR logic operations. Studying the relation of polarization states among the diffracting, recording and reading beams,we implement XOR logic and half adder operations with three inputs. The methods are simple and practicable.
Received: 18 August 2004
Revised: 21 December 2004
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60278007) and the Natural Science Foundation of Tianjin, China (Grant No 033601311)
Cite this article:
Chen Gui-Ying (陈桂英), Zhang Chun-Ping (张春平), Guo Zong-Xia (郭宗霞), Tian Jian-Guo (田建国), Zhang Guang-Yin (张光寅), Song Qi-Wang (宋奇望) All-optical logic-gates based on bacteriorhodopsin film 2005 Chinese Physics 14 774
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