Efficient phase conjugation via two-photon coherence in an optically dense crystal
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We demonstrate efficient phase conjugation in an inhomogeneously broadened rare-earth doped crystal using electromagnetically induced transparency. The observed frequency conversion efficiency of the phase conjugate in energy over a backward pump beam is as high as 10% with 1/4 of maximal Raman coherence. This efficient phase conjugation has potential applications of nonlinear optical processes such as frequency up-conversion and Raman excited spin-echo optical memory. 1999 The American Physical Society.
author list (cited authors)
Ham, B. S., Hemmer, P. R., & Shahriar, M. S.
complete list of authors
Ham, BS||Hemmer, PR||Shahriar, MS