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Optics Letters

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  • Vol. 26, Iss. 21 — Nov. 1, 2001
  • pp: 1702–1704

Reflection-type polarization holograms in bacteriorhodopsin films for low-light recording

T. Juchem and N. Hampp  »View Author Affiliations


Optics Letters, Vol. 26, Issue 21, pp. 1702-1704 (2001)
http://dx.doi.org/10.1364/OL.26.001702


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Abstract

Reflection-type polarization holograms with phase-conjugated readout are very useful for low-light recording with bacteriorhodopsin (BR) films. The dependence of reflection-type holograms with parallel and orthogonal recording beams on their intensity ratio (1:1–1:20) was investigated. It was found that for orthogonally polarized beams the phase-conjugated signal depends significantly less on the beam intensity ratio than predicted by coupled-wave theory. This finding is of particular relevance for recording of very low object-beam intensities with BR films, e.g., in interferometry, where signals with a high signal-to-noise ratio, owing to the different polarizations of the scattered light and the signal, and with low dependence of the diffraction efficiency on the ratio between the reference and object-beam intensities are obtained. With this asymmetric recording process, holograms were recorded successfully in BR films with a good signal-to-noise ratio at exposures (from the object side) as low as 50μJ/cm2 . These exposures are in the range of those typically used for silver halide films.

© 2001 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2880) Holography : Holographic interferometry
(090.2900) Holography : Optical storage materials
(160.4890) Materials : Organic materials

Citation
T. Juchem and N. Hampp, "Reflection-type polarization holograms in bacteriorhodopsin films for low-light recording," Opt. Lett. 26, 1702-1704 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-21-1702


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References

  1. N. Hampp, Chem. Rev. 100, 1755 (2000).
  2. R. R. Birge, Annu. Rev. Phys. Chem. 41, 683 (1990).
  3. A. Seitz and N. Hampp, J. Phys. Chem. B 104, 7183 (2000).
  4. H. Kogelnick, Bell Syst. Tech. J. 48, 2909 (1969).
  5. J. D. Downie and D. A. Timucin, Appl. Opt. 37, 2102 (1998).
  6. R. Thoma, N. Hampp, C. Bräuchle, and D. Oesterhelt, Opt. Lett. 16, 651 (1991).
  7. R. Thoma and N. Hampp, Opt. Lett. 17, 1158 (1992).

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