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Optics Letters

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  • Vol. 21, Iss. 15 — Aug. 1, 1996
  • pp: 1108–1110

Four-wave-mixing interferometer

N. Tang and J. P. Partanen  »View Author Affiliations


Optics Letters, Vol. 21, Issue 15, pp. 1108-1110 (1996)
http://dx.doi.org/10.1364/OL.21.001108


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Abstract

We have developed a new method of determining in time both the real and the imaginary parts of third-order nonlinear-optical coefficients. In this method the phase-conjugated four-wave-mixing signal beam interferes with one of the transmitted pump beams. By comparing the interference pattern with that of a known reference, we are able to determine the real and the imaginary parts of the third-order optical nonlinearity for an unknown sample. The real and the imaginary parts can also be separated when one incoming beam is delayed. We apply this method to a bis-thienyl polyene molecule containing five conjugate double bonds and find that the hyperpolarizability is γ1111 = (−2.5 − 0.17i) × 10−30 esu.

© 1996 Optical Society of America

History
Original Manuscript: November 17, 1995
Published: August 1, 1996

Citation
N. Tang and J. P. Partanen, "Four-wave-mixing interferometer," Opt. Lett. 21, 1108-1110 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-15-1108


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References

  1. Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984), Chap. 1, p. 4.
  2. R. W. Hellwarth, Prog. Quantum Electron. 5, 1 (1977). [CrossRef]
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  8. C. W. Spangler, M. Q. He, J. Laquindanum, L. Dalton, N. Tang, J. P. Partanen, R. W. Hellwarth, in Electrical, Optical, and Magnetic Properties of Organic Solid State Materials, A. F. Garito, A. K-Y. Jen, L. R. Dalton, C. C. Lee, eds., Vol. 328 of MRS Symposium Proceedings Series (Materials Research Society, Pittsburgh, Pa., 1994), p. 655.
  9. N. Tang, “Experimental and theoretical studies of the nonlinear optical response of certain fullerenes, polymers and glasses,” Ph.D. dissertation (University of Southern California, Los Angeles, August1994).

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