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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 8, Iss. 3 — Mar. 1, 1991
  • pp: 570–577

Nondegenerate multiwave mixing in polydiacetylene: phase conjugation with frequency conversion

Fabrice Charra and Jean-Michel Nunzi  »View Author Affiliations


JOSA B, Vol. 8, Issue 3, pp. 570-577 (1991)
http://dx.doi.org/10.1364/JOSAB.8.000570


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Abstract

We present an analysis of optical phase conjugation with frequency doubling in terms of nondegenerate six-wave mixing fifth-order nonlinear susceptibility. We show how the Bragg phase-matching condition is achieved at small angles. The process under picosecond-pulse conditions in a polydiacetylene solution pumped at two-photon resonance and probed at one-photon resonance is experimentally demonstrated. Results are discussed in terms of a one-dimensional quantum three-level system. The proximity of one- and two-photon resonance in conjugated polymers makes these polymers efficient nonlinear-optical materials for this original application. The experiment permits artifact-free measurement of the two-photon state recovery time of the red form of polydiacetylene.

© 1991 Optical Society of America

History
Original Manuscript: February 8, 1990
Manuscript Accepted: August 20, 1990
Published: March 1, 1991

Citation
Fabrice Charra and Jean-Michel Nunzi, "Nondegenerate multiwave mixing in polydiacetylene: phase conjugation with frequency conversion," J. Opt. Soc. Am. B 8, 570-577 (1991)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-8-3-570

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