中文摘要：

研究一种生物光致变色材料——基因突变菌紫质BR—D96N．测定了它的光致变色双态吸收光谱．测出基态（B态）的吸收峰在568nm．亚稳中间态（M态）的吸收峰在411nm.两态吸收峰都可与目前的激光器波长匹配．并且两态之间的吸收峰值差别很大．光致变色效应明显．通过对样品从M态到B态的热驰豫过程中动态光谱的测定和分析．算出M态的寿命为约14min．利用该材料的光致变色特性．在BR．D96N薄膜上实现了图像光存储．所存储的图像对比度高．用普通相机在自然光下即可直接读出．结果表明，BR-D96N具有良好的热稳定性（样品使用两年以上性能没有发生明显变化）和良好的抗疲劳性（可擦重写操次数达100万次以上）．

英文摘要：

Gene mutation Bacteriorhodopsin BR-D 96N is a biological photochromic materials. The absorption spectra of the photochromic two states of the BR-D96N film are measured. The absorption peak of the ground-state （B-state） is at 568 nm,while the met-stable intermediate （M-state） absorption peak is at 411 nm. The two-state absorption peak can be matches with the current laser wavelength, and the absorption peak between the two-state has large shift, so the photochromic effective obviously. And it is obtained that the M-state lifetime of the sample is about 14 min from the measurement and analysis of dy- namic spectra in the thermal relaxation process of the sample from M-state to B-state. And optical image storage was realized in BR-D96N film by using its photochromic properties, the contrast of the recorded im- ages is high enough, so it can be easily read out directly by a usual camera. The experimental results showed that BR-D96N have a good thermal stability （the sample has been used for more than two years, and its properties have no significant changing） and good anti-fatigability （rewritable operation number is more than 1 million times）.