Nonlinear Optics in Three Level Atomic Systems

摘要

The nonlinear optical properties of three-level atomic systems in the resonanceRaman configuration are investigated both theoretically and experimentally. Special emphasis is placed on the optical properties which are unique to three-level systems, and have potential device applications. In particular, microwave-phase-dependent optical absorption is demonstrated experimentally. This is of interest because of potential applications to microwave circuit phase mapping, and mm-wave to FIR beam steering and image conversion. Optical data storage with Raman excited microwave spin echoes is also demonstrated experimentally. This technique has potential for increasing storage densities in optical echo memories and may lead to near-room-temperature materials for echo storage and processing. Finally, the optical forces on three-level atoms in Raman resonant standing waves are studied to investigate the potential for using trapped neutral atoms as nonlinear optical elements.... Nonlinear optics, Resonance Raman, Atomic beams.