Characteristics of Electromagnetic Radiation from Quartz, Lithium Niobate, and Polymethyl Methacrylate Samples Subjected to Impact Loading

The formation of a crack in quartz and lithium niobate single crystal samples, as well as in a polymethyl methacrylate sample, which is accompanied by the generation of electromagnetic radiation at its propagation through the bulk of the samples, has been studied. It has been shown that the onset ti...

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Bibliographic Details
Published in:JETP letters 2024-03, Vol.119 (5), p.413-419
Main Authors: Kostyukov, A. D., Karpov, M. A.
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Broadband
Electric fields
Electromagnetic radiation
Electron emission
Impact loads
Lithium niobates
Miscellaneous
Molecular
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Polymethyl methacrylate
Quantum Information Technology
Quartz
Single crystals
Solid State Physics
Spintronics
Triboluminescence
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Summary:The formation of a crack in quartz and lithium niobate single crystal samples, as well as in a polymethyl methacrylate sample, which is accompanied by the generation of electromagnetic radiation at its propagation through the bulk of the samples, has been studied. It has been shown that the onset time of the mechanical failure of samples correlates with the intense emission of ultrahigh-frequency broadband radiation from them. The frequency characteristics of radiation have been measured by a broadband antenna and a broadband oscilloscope. It has been shown that optical flashes correlate with ultrahigh-frequency radiation pulses. The phenomenon is attributed to induced triboluminescence. Radiation is generated due to the appearance of cracks in the samples with the formation of charges on their surface and subsequent field electron emission due to the generation of a high electric field gradient.
ISSN:0021-3640
1090-6487
DOI:10.1134/S002136402460023X