Subthreshold Steady‐State Absorption under Parallel Pumping
作者:
C. P. Hartwig,
J. J. Green,
R. I. Joseph,
E. Schlo¨mann,
期刊:
Journal of Applied Physics
(AIP Available online 1965)
卷期:
Volume 36,
issue 3
页码: 1265-1266
ISSN:0021-8979
年代: 1965
DOI:10.1063/1.1714197
出版商: AIP
数据来源: AIP
摘要:
If the rf and dc magnetic fields are parallel, the absorption coefficient &mgr;″ at low power levels is theoretically expected (for YIG at room temperature, a frequency of 10 Gc/sec, and a dc field of 1 kOe) to be of the order of 2×10−4. We have calculated how the steady‐state absorption varies with dc and rf field strength below the instability threshold. Experiments on a high‐purity YIG single crystal are in reasonably good agreement with the theoretical expectations.
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