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.

© 1996 Optical Society of America

Nonlinear optical properties of a bacteriorhodopsin film in a Fabry–Perot cavity

Hiroyuki Takei and Norio Shimizu
Opt. Lett. 19(4) 248-250 (1994)

Incoherent-to-coherent conversion and square-law transmission based on photoinduced birefringence in bacteriorhodopsin films

David Sánchez-de-la-Llave and Michael A. Fiddy
Appl. Opt. 38(5) 815-821 (1999)

Composition dependence of the photoinduced refractive-index change in lead silicate glasses

X.-C. Long and S. R. J. Brueck
Opt. Lett. 24(16) 1136-1138 (1999)

Bacteriorhodopsin modules for data processing with incoherent light

T. Juchem, M. Sanio, and N. Hampp
Opt. Lett. 27(18) 1607-1609 (2002)

Dynamics of photoinduced refractive index changes in As₂S₃ fibers

Irina V. Kabakova, Liner Zou, George A. Brawley, Catalin Florea, Ishwar D. Aggarwal, Jasbinder S. Sanghera, Eric C. Mägi, Enbang Li, and Benjamin J. Eggleton
Appl. Opt. 51(30) 7333-7338 (2012)