Films of oriented bacteriorhodopsin have been formed in polyvinyl alcohol with excellent optical quality. Images with high contrast have been impressed and erased on these films. Second-harmonic microscopy has been used to read the image on a bacteriorhodopsin–polyvinyl alcohol film without erasure. The potential of these films for molecular information storage and computation is discussed.
© 1991 Optical Society of America
Original Manuscript: November 22, 1989
Published: December 10, 1991
Zhongping Chen, Aaron Lewis, Hiroyuki Takei, and Isaiah Nebenzahl, "Bacteriorhodopsin oriented in polyvinyl alcohol films as an erasable optical storage medium," Appl. Opt. 30, 5188-5196 (1991)