Abstract
We present experimental results demonstrating the red-shifted photochromic behavior of a gelatin film made from L93T, a genetic variant of bacteriorhodopsin. The red shift of the absorbance spectrum on illumination with visible light is due to a short M-state lifetime and a longer-lived O state whose absorption peaks at 610 nm. Pump–probe measurements show the O state to have a lifetime of approximately 2.2 s in the gelatin film, with a single exponential decay behavior. We also present holographic kinetic results for both red (633-nm) and blue (442-nm) readout wavelengths.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
John D. Downie and Daniel T. Smithey
Appl. Opt. 35(29) 5780-5789 (1996)
John D. Downie, Doǧan A. Timuçin, Daniel T. Smithey, and Marshall Crew
Opt. Lett. 23(9) 730-732 (1998)
Jack Tallent, Q. Wang Song, Zengfa Li, Jeff Stuart, and R. R. Birge
Opt. Lett. 21(17) 1339-1341 (1996)