Journal
PHYSICS OF PLASMAS
Volume 22, Issue 9, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4931075
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Funding
- National Natural Science Foundation of China [11274255, 11305132]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20136203110001]
- Creation of Science and Technology of Northwest Normal University, China [NWNU-KJCXGC-03-48, NWNU-LKQN-12-12, NWNU-LKQN-10-27]
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Terahertz (THz) radiation generated by beating of two Langmuir waves in a warm and collisional plasma is discussed theoretically. The critical angle between the two Langmuir waves and the critical wave-length (wave vector) of Langmuir waves for generating THz radiation are obtained analytically. Furthermore, the maximum radiation energy is obtained. We find that the critical angle, the critical wave-length, and the generated radiation energy strongly depend on plasma temperature and wave-length of the Langmuir waves. That is, the THz radiation generated by beating of two Langmuir waves in a warm and collisional plasma can be controlled by adjusting the plasma temperature and the Langmuir wave-length. (c) 2015 AIP Publishing LLC.
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