NOVEL PRINCIPLE FOR A TUNABLE AMPLIFICATION OF MICROWAVES DRIVEN BY A LASER-RADIATION

The interaction of a dipole gas with a strong laser field E1(t) and a strong, much lower frequency electric field E2(t) is analytically investigated. A theory of stimulated scattering in dipole gases is developed and used in numerical calculations of the amplification of the field E2(t) under resonance conditions. This theory may serve as a basis for constructing tunable devices for the generation and/or amplification of infrared or microwave radiation. Such devices may make inroads into a wavelength range longer than that of analogous devices based on the traditional stimulated Raman scattering in nondipole media. © 1995 The American Physical Society.