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Bacteriorhodopsin overview of fundamentals and a

机译:细菌视紫红质的基本原理和

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Abstract: Bacteriorhodopsin (BR) is a light transducing photochromic protein in the purple membrane of a salt-loving microorganism that inhabits salt marshes. It has strong absorption in a broad region of the visible spectrum. The B- state in the photocycle can be considered to be the ground state, which has absorption maxima at 570 nm. Perhaps, the most intriguing features of this organic photopolymer are its extraordinary stability in the chemical, thermal and photochemical sense, its large optical nonlinearity, dynamic nature, durability, real-time holographic recording capabilities, and information storage potential. Furthermore, BR-doped polymer film can be fabricated for a large-scale application, whereas photorefractive crystals like BSO or KNSBM cannot be grown easily to the same dimension as BR. Hence, BR's potential in optical system includes transient dynamic applications of an M-type hologram and 3D optical memories of a branched photocycle that shows a great promise for data storage and retrieval due to its high capacity. The major advantages of this organic photopolymer include high density, low cost, low weight and portability which are a projected requirement for the Air Force and commercial applications. !38
机译:摘要:细菌视紫红质(BR)是一种光导的光致变色蛋白,位于嗜盐盐沼中,是一种爱好盐的微生物的紫色膜。它在可见光谱的宽范围内具有很强的吸收能力。光循环中的B-态可以被认为是基态,其在570 nm处具有最大吸收。也许,这种有机光敏聚合物最吸引人的特征是其在化学,热和光化学意义上的非凡稳定性,巨大的光学非线性,动态特性,耐用性,实时全息记录能力以及信息存储潜力。此外,掺BR的聚合物膜可以制造用于大规模应用,而像BSO或KNSBM这样的光折变晶体不能容易地生长到与BR相同的尺寸。因此,BR在光学系统中的潜力包括M型全息图的瞬态动态应用和分支光周期的3D光学存储器,由于其高容量而显示出对数据存储和检索的巨大希望。这种有机光敏聚合物的主要优点包括高密度,低成本,低重量和便携性,这是空军和商业应用的预期要求。 !38

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