Mirrorless all-optical bistability in bacteriorhodopsin

Mirrorless all-optical bistability in bacteriorhodopsin

We report direct observations of all-optical mirrorless bistability associated with saturable absorption in three kinds of bacteriorhodopsin (BR) samples: wild-type BR in water solution and dispersed in thin films of a polymer matrix as well as water solution of the genetically engineered mutant BRD...

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Veröffentlicht in:Applied physics letters 1993-09, Vol.63 (11), p.1489-1491
Hauptverfasser: RAO, D. V. G. L. N, ARANDA, F. J, WILEY, B. J, AKKARA, J. A, KAPLAN, D. L, ROACH, J. F
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optics
Physics
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Zusammenfassung:We report direct observations of all-optical mirrorless bistability associated with saturable absorption in three kinds of bacteriorhodopsin (BR) samples: wild-type BR in water solution and dispersed in thin films of a polymer matrix as well as water solution of the genetically engineered mutant BRD96N. The experiments are carried out with picosecond pulses at 532 nm. The values measured for the saturation intensity are explained in terms of the relaxation of the excited M state population to the B state of the BR photocycle for the three kinds of samples studied.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.109665