Abstract

Quantum coherence has led to the observation of many new effects in quantum optics and atomic physics. Examples include electromagnetically induced transparency (EIT). EIT exhibits an important advantage of achieving efficient parametric frequency conversion, although all the applied electromagnetic fields are at resonance [1]. For the triple-resonance into a spin multiple of a dilute paramagnetic solid, when the spectroscopic bridge (SB) conditions are fulfilled, high-efficiency microwave frequency conversions, or phase sensitive amplifications have recently been predicted neglecting the coherent mixing of the fields [2]. However, unlike the usual treatments that consider the fields strictly monochromatic, the above formalism considers the more realistic case of the quasimonochromatic fields.

© 1998 IEEE