基于细菌视紫红质光子逻辑门的实验研究

Photonic logic gates based on bacteriorhodopsin

研究了基于细菌视紫红质 (简称BR或菌紫质 )变种材料D96N的 3种光逻辑操作 .在 6 33nm激发光照射下 ,菌紫质分子会被激发到M态 ,处于M态的菌紫质对 4 12nm的紫光呈较大吸收 ,会抑制同时入射的紫光 .选择合适的紫光强度 ,通过CCD观测被抑制的 4 12nm检测光透射强度分布 ,模拟了“非”、“或非”、“与非”几种基本的光子逻辑操作 .

In this letter three photonic logic gate models are presented based on the bacteriorhodopsin( BR) polymer made from variant D96N. With the illumination of 633nm laser the BR molecules can be excited to the M state and show a strong absorption at 412nm, so the intensity of transmitted purple light will decrease until zero when the exciting light is strong enough. A CCD camera is used to detect the distribution of transmitted purple light intensity that can be modulated by illumination of 633nm laser on 1311 film and NOT, ORNOT, ANDNOT gates are simulated under the special intensity of purple light.