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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 27, Iss. 5 — Mar. 1, 2002
  • pp: 354–356

Photochromic polymers for the optical homodyne detection of ultrasonic surface displacements

Ulrich Gubler, Daniel Wright, W. E. Moerner, and Marvin B. Klein  »View Author Affiliations


Optics Letters, Vol. 27, Issue 5, pp. 354-356 (2002)
http://dx.doi.org/10.1364/OL.27.000354


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Abstract

We present a novel scheme with which to detect small ultrasonic surface displacements by use of a photochromic polymer instead of a photorefractive material as an adaptive beam combiner in a two-wave mixing geometry. Poly(methyl methacrylate) is doped with a derivative of zinc tetrabenzoporphyrin that possesses a long-lived triplet state that can be efficiently populated in a reversible manner. The resulting dynamic hologram consists of local absorption and refractive-index gratings, which can process speckled beams reflected from rough surfaces. We believe that this is the first use of a local nonlinear medium for adaptive homodyne detection of ultrasonic surface displacements.

© 2002 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(090.7330) Holography : Volume gratings
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(160.4330) Materials : Nonlinear optical materials
(160.5470) Materials : Polymers

Citation
Ulrich Gubler, Daniel Wright, W. E. Moerner, and Marvin B. Klein, "Photochromic polymers for the optical homodyne detection of ultrasonic surface displacements," Opt. Lett. 27, 354-356 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-5-354

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