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用细菌视紫红质膜实现多进制数字光学运算   总被引:2,自引:0,他引:2       下载免费PDF全文
细菌视紫红质(bR)膜对黄光和蓝光的透射具有互补调制特性,由解黄光、蓝光透射光强的速 率方程而得到黄光和蓝光的互补抑制透射特性的解析表达式和图示结果.提出了无进位和无退 位的多进制数字光计算的矩阵加、减运算模型,构造了新型光计算的基本处理模式和计算结 构,设计了多进制矩阵的加法和减法的最佳实验方案,并用bR膜实现了多进制数字光矩阵的 减法运算实验操作. 关键词: 细菌视紫红质膜 数字光计算 运算结构 光调制  相似文献   
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We investigate the dependences of the diffraction efficiency of the first order self-diffracted beam in bacteriorhodopsin (bR) films on the illumination time, the intensity and wavelength of the incident light. When the blue light (λ = 488 nm) and low intensity red light (λ = 632.8 nm) are incident on the bR film respectively,the diffraction efficiencies increase from zero to a stable value with the illumination time. When the green light (λ = 533 nm) and high-intensity red light illuminate the bR film respectively, the diffraction efficiencies increase from zero to the maximum and then decrease to a stable value with the illumination time. Rise and decay times are dependent on the intensity and wavelength of the incident light. The maximal diffraction efficiency of the red light is twice as high as that of the green light. The highest diffraction efficiency of 5.4% is obtained at 633nm.The diffraction efficiency change with the time for the green light is larger than that for the blue and red light.  相似文献   
3.
基于在细菌视紫红质膜中的自衍射,我们提出了全光非、异或、半加器及同或门逻辑操作。利用衍射光与记录光偏振状态之间的关系,我们演示了非门和同或门逻辑操作。 通过衍射光,记录光和读出光之间的偏振状态的关系,我们实现了异或逻辑操作和具有三个输入端的半加器逻辑操作。所用方法简单实用。  相似文献   
4.
细菌视紫红质在全光逻辑器件中的研究与应用   总被引:1,自引:0,他引:1  
介绍了细菌视紫红质在逻辑器件中的研究与应用,总结了利用细菌视紫红质研究逻辑器件的方法,明确进一步研究逻辑器件的发展方向是智能化器件的开发.  相似文献   
5.
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 illumlnate 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 “VLSF” with ground noise of small words and the ground noise is removed from the pattern by the new optical filter.  相似文献   
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