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Optics Letters

Optics Letters


  • Vol. 30, Iss. 5 — Mar. 1, 2005
  • pp: 501–503

Photoinduced grating formation in azo-dye-labeled phospholipid thin films by 244-nm light

A. Sharma, M. Dokhanian, A. Kassu, and Atul N. Parekh  »View Author Affiliations

Optics Letters, Vol. 30, Issue 5, pp. 501-503 (2005)

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Holographic gratings are recorded in azo-dye nitrobenzoxazole-labeled phospholipid thin films by use of 244-nm UV light. The gratings continue to grow for more than 1 h, even after the recording light is removed. The diffraction efficiency of these gratings shows extreme sensitivity to humidity and can increase reversibly by 2 orders of magnitude in air that is saturated with water vapor. This effect is related to the unique characteristics of phospholipid molecules that undergo hydration-dependent structural reorganization and self-assembly.

© 2005 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.2900) Materials : Optical storage materials
(240.0310) Optics at surfaces : Thin films

A. Sharma, M. Dokhanian, A. Kassu, and Atul N. Parekh, "Photoinduced grating formation in azo-dye-labeled phospholipid thin films by 244-nm light," Opt. Lett. 30, 501-503 (2005)

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