期刊
IEEE TRANSACTIONS ON PLASMA SCIENCE
卷 37, 期 1, 页码 36-43出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPS.2008.2004787
关键词
Frequency tunability; gyrotron; harmonics; large-orbit gyrotron (LOG); powerful generation; pulse magnetic field; subterahertz; terahertz
资金
- Japan Society for the Promotion of Science
- Russian Foundation for Basic Research [06-02-91176]
- Program of the Presidium of the Russian Academy of Sciences Electromagnetic waves of the THz frequency range
- Ministry of Education, Science and Culture of Japan
- Civilian Research and Development Foundation [RUPI-2688-NN-05]
The maximal frequency of radiation higher than 1 THz has been recently obtained in pulse gyrotrons both at IAP (Nizhny Novgorod, Russia) and FIR (Fukui, Japan). CW generation at a 2.2-kW power level is radiated from a 300-GHz gyrotron and used for technological applications. New gyrotrons; demonstrate single-mode operation at the second cyclotron harmonic with a frequency of 395 GHz in the CW regime with a power of 100 W and at the third harmonic with frequencies of 371-41.4 GHz in 10-mu s pulses with power of 10-20 kW. Methods of selective excitation of higher cyclotron harmonics, frequency multiplication, and smooth frequency tuning in terahertz gyrotrons are also discussed in the review.
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