期刊
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
卷 111, 期 4, 页码 534-540出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S106377611010002X
关键词
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资金
- Russian Foundation for Basic Research [08-02-90112-Mol_a, 10-02-01016-a]
- Ministry of Education and Science of the Russian Federation [RNP 2.1.1/4694]
The Fresnel reflection of radiation pulses with an exponential temporal amplitude profile is analyzed. The conditions for the relevance of the concept of reflectance at a complex frequency, the imaginary part of which determined the rate of time variation of the amplitude, are specified. For the radiation pulses under study, we demonstrate a complex resonance, i.e., an increase in the magnitude of reflectance for the complex frequency of incident radiation (trailing edge of a pulse) that approaches the complex frequency of natural oscillations of oscillators in the medium.
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