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Optics Letters

Optics Letters


  • Vol. 5, Iss. 10 — Oct. 1, 1980
  • pp: 433–435

Theory of two-photon phase conjugation

Tao-Yi Fu and Murray Sargent, III  »View Author Affiliations

Optics Letters, Vol. 5, Issue 10, pp. 433-435 (1980)

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The theory of degenerate four-wave mixing using two-photon transitions is formulated. Two kinds of mechanisms compete in generating conjugate waves leading to two phenomena that do not occur in two-level media: (1) a double-peaked reflection spectrum and (2) coupled-mode oscillation in absorbing media. In addition, because of the dynamic Stark-shifted line center, the reflection coefficient approaches a constant value at large intensities, unlike the two-level coefficient, which bleaches to zero.

© 1980 Optical Society of America

Original Manuscript: May 28, 1980
Published: October 1, 1980

Tao-Yi Fu and Murray Sargent, "Theory of two-photon phase conjugation," Opt. Lett. 5, 433-435 (1980)

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  1. R. W. Hellwarth, J. Opt. Soc. Am. 67, 1 (1977). [CrossRef]
  2. A. Yariv, D. M. Pepper, Opt. Lett. 1, 16 (1977). [CrossRef] [PubMed]
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  13. M. Sargent, Phys. Rep. 43, 223 (1978). [CrossRef]
  14. The two-level Doppler-broadened case is discussed by S. M. Wandzura, Opt. Lett. 4, 208 (1979). [CrossRef] [PubMed]

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