title: Spatial light modulation based on photoinduced change in the complex refractive index of bacteriorhodopsin.
abstract: Bacteriorhodopsin exhibits photoinduced changes in both absorption and refractive index at 633 nm. To explore the possibility of exploiting this property in constructing a photoaddressed spatial light modulator, we investigated the transmission property of a Fabry-Perot interferometer containing a bacteriorhodopsin thin film. Film was formed that had a phase shift of π/4 and sufficient interference fringe contrast for spatial light modulation. This establishes the possibility of constructing a spatial light modulator that features nonlinear input-output characteristics and can operate at moderate light intensities of the order of tens of milliwatts per centimeter square.
authors.forename: H
authors.initials: H
authors.lastname: Takei
authors.forename: N
authors.initials: N
authors.lastname: Shimizu