Optimal control of the isomerization yield in bacteriorhodopsin using tailored light pulses

Valentyn I. Prokhorenko; Andrea M. Nagy; Leonid S. Brown; R. J. Dwayne Miller

doi:10.1117/12.629963

30 September 2005 Optimal control of the isomerization yield in bacteriorhodopsin using tailored light pulses

Valentyn I. Prokhorenko, Andrea M. Nagy, Leonid S. Brown, R. J. Dwayne Miller

Proceedings Volume 5971, Photonic Applications in Nonlinear Optics, Nanophotonics, and Microwave Photonics; 59710K (2005) https://doi.org/10.1117/12.629963
Event: Photonics North, 2005, Toronto, Canada

Abstract

The all-trans to 13-cis isomerization of the retinal chromophore in bacteriorhodopsin (bR) plays an essential role in Nature (e.g., in photosynthesis of halobacteria). bR is a candidate for optical nanodevices driven by laser pulses, and a prospective material for optical memory storage devices and photoswitches. From the viewpoint of possible applications of bR in nanodevices we performed an experimental study of the isomerization yield by excitation with tailored laser pulses, using a coherent control approach. With specially shaped excitation pulses (found in optimization experiments) we are able to manipulate the 13-cis yield in bR over an absolute range of 60% (30% enhancement as well as 30% suppression in comparison to excitation with a transform-limited pulse) while keeping the absorbed excitation energy at a constant level.

Citation Download Citation

Valentyn I. Prokhorenko, Andrea M. Nagy, Leonid S. Brown, and R. J. Dwayne Miller "Optimal control of the isomerization yield in bacteriorhodopsin using tailored light pulses", Proc. SPIE 5971, Photonic Applications in Nonlinear Optics, Nanophotonics, and Microwave Photonics, 59710K (30 September 2005); https://doi.org/10.1117/12.629963

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