Integrated optical switching based on the protein bacteriorhodopsin

A. Dér, Sándor Valkai, László Fábián, P. Ormos, Jeremy J. Ramsden, Elmar K. Wolff

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

According to our earlier pioneering study, a dry film containing native bacteriorhodopsin (bR) shows unique nonlinear optical properties (refractive index change, controllable by light of different colors, greater than 2 × 10-3) that are in many respects superior to those of the materials presently applied in integrated optics. Here, we report on the first integrated optical application based on a miniature Mach-Zehnder interferometer (see Figs. 1 and 2) demonstrating a real switching effect by bR (efficiency higher than 90%) due to the M-state. Our results also imply that the refractive index change of the K-state (9 × 10-4) is high enough for fast switching.

Original languageEnglish
Pages (from-to)393-396
Number of pages4
JournalPhotochemistry and Photobiology
Volume83
Issue number2
DOIs
Publication statusPublished - Mar 2007

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Bacteriorhodopsins
Refractometry
optical switching
Refractive index
refractivity
proteins
Integrated optics
Mach-Zehnder interferometers
integrated optics
Proteins
Optical properties
Color
color
Light
optical properties

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics

Cite this

Integrated optical switching based on the protein bacteriorhodopsin. / Dér, A.; Valkai, Sándor; Fábián, László; Ormos, P.; Ramsden, Jeremy J.; Wolff, Elmar K.

In: Photochemistry and Photobiology, Vol. 83, No. 2, 03.2007, p. 393-396.

Research output: Contribution to journalArticle

Dér, A. ; Valkai, Sándor ; Fábián, László ; Ormos, P. ; Ramsden, Jeremy J. ; Wolff, Elmar K. / Integrated optical switching based on the protein bacteriorhodopsin. In: Photochemistry and Photobiology. 2007 ; Vol. 83, No. 2. pp. 393-396.
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