Optical Amplification due to Parametric Interaction of Four Waves with a Four-Level System

Four-wave parametric interactions in a four-level system are treated using semiclassical theory. Line-shape functions for a weak probe field and three resonant pump fields are presented and are evaluated numerically in a model case of equalized interaction energies and relaxation rates. For sufficie...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1982-07, Vol.21 (7A), p.L417
Main Author: Tsukakoshi, Motowo
Format: Article
Language:English
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Summary:Four-wave parametric interactions in a four-level system are treated using semiclassical theory. Line-shape functions for a weak probe field and three resonant pump fields are presented and are evaluated numerically in a model case of equalized interaction energies and relaxation rates. For sufficiently intense pump fields, the line shape splits into five peaks, and negative absorption, i.e. amplification, occurs in some frequency regions of the probe field.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.21.L417