Using degenerate four-wave mixing in a Fe:LiNbO3 0.04-wt. % crystal and incremental recording, we have realized phase conjugation of light emitted by a fiber tip (of a near-field microscope) alternately placed at two close positions near the crystal surface. We observe with the near-field microscope that the phase-conjugated light forms two subwavelength-sized spots near the surface; the spots are elongated in the direction of the crystal optical axis. It is demonstrated that phase-conjugated light spots formed 240 nm apart in the direction perpendicular to the crystal optical axis can still be resolved.
© 1995 Optical Society of AmericaFull Article | PDF Article
Brian Vohnsen and Sergey I. Bozhevolnyi
J. Opt. Soc. Am. A 14(7) 1491-1499 (1997)
Sergey I. Bozhevolnyi, Ole Keller, and Igor I. Smolyaninov
Opt. Lett. 19(20) 1601-1603 (1994)
Sergey I. Bozhevolnyi, Elena A. Bozhevolnaya, Svend Berntsen, and Brian Vohnsen
J. Opt. Soc. Am. A 13(12) 2381-2392 (1996)