Abstract

A new technique for overcoming inhomogeneous broadening in condensed matter is reported. Phase-matching-induced frequency selectivity associated with multiresonant four-wave mixing is explored in detail for the first time to our knowledge and shown to give laser-limited linewidths that are more than 10 times narrower than the inhomogeneous width of an intermediate resonance in LiTbF₄. The anomalous dispersion associated with the resonance was also measured, and model calculations suggest that significantly greater narrowing is feasible.

© 1982 Optical Society of America

Saturation splitting in the spectrum of resonant degenerate four-wave mixing

Govind P. Agrawal, A. Van Lerberghe, P. Aubourg, and J. L. Boulnois
Opt. Lett. 7(11) 540-542 (1982)

Multiresonant behavior in nearly degenerate four-wave mixing: the ac Stark effect

D. G. Steel and R. C. Lind
Opt. Lett. 6(12) 587-589 (1981)

Saturation spectroscopy and resonant degenerate four-wave mixing in Hg at 546.1 nm

M. Kroll
Opt. Lett. 7(4) 151-153 (1982)

Polarization characteristics of phase-conjugate mirrors obtained by resonant degenerate four-wave mixing

Martial Ducloy, Rama K. Raj, and Daniel Bloch
Opt. Lett. 7(2) 60-62 (1982)

Influence of chromatic dispersion on degenerate four-wave mixing

B. Crosignani and P. Di Porto
Opt. Lett. 7(10) 489-490 (1982)