A simplified method for the analysis of the effect of self-cross-relaxation on the maser performance is proposed. Calculation of any four-level system involving not more than triple cross-relaxation processes is carried out by means of this method, and some operative modes which may possibly yield improved performance are given. As illustrative examples, some typical design considerations and results are given for X band and S band ruby cavity masers.

Proceedings of the Physical SocietyNov 1, 19640 citations

Applied Optics

Optical and Cross Relaxation Maser Level Populations by Partial Distribution

William A. Barker, J. D. Keating

Published May 1, 1962• 3 citations

Publisher

Abstract

DOI: 10.1364/ao.1.000335

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Optical and Cross Relaxation Maser Level Populations by Partial Distribution

William A. Barker, J. D. Keating

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A simplified method for the analysis of self-cross-relaxation masers

HUANG WU-HAN, LIN FU-CHENG

Proceedings of the Physical SocietyNov 1, 19640 citations

{T}_{1}={T}_{2}

which is true for ordinary gaseous systems and individual spin systems in a majority of very dilute paramagnetic solids. A complete theory is discussed for a gaseous system and extended to two limiting cases of paramagnetic materials with

{T}_{1}={T}_{2}

and ${T}_{2}\ensuremath{\ll}{T}_{1}$ for each individual spin system. Furthermore, it is shown that for a saturating field of fixed frequency, the integral of induced power over the entire line is in full agreement with the results of a semiclassical treatment in which the population differences alone are considered. Some remarks are made as to the practicability of certain systems of this type.