2015年9月
Experimental study of intense radiation in terahertz region based on cylindrical surface wave resonator
JOURNAL OF APPLIED PHYSICS
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- 巻
- 118
- 号
- 12
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1063/1.4931371
- 出版者・発行元
- AMER INST PHYSICS
Periodical corrugations structured on a cylindrical conductor have cylindrical surface waves (CSWs), which are reflected at the corrugation ends and form a CSW-resonator. In this paper, intense radiations in terahertz region based on the CSW-resonator are reported. The CSW-resonators with upper cut off frequencies in the modern IEEE G-band (110-300 GHz) are excited by a coaxially injected annular beam in a weakly relativistic region less than 100 kV. It is shown that there exists an oscillation starting energy for the CSW-resonator. Above the starting energy, very intense terahertz radiations on the order of kW are obtained. The operation frequencies in the range of 166-173 GHz and 182-200 GHz are obtained using two types of CSW-resonator with the different corrugation amplitude. Electromagnetic properties of the CSW-resonator can be controlled by the artificial structure and may play an important role in high-intensity terahertz generations and applications. (C) 2015 AIP Publishing LLC.
- リンク情報
- ID情報
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- DOI : 10.1063/1.4931371
- ISSN : 0021-8979
- eISSN : 1089-7550
- Web of Science ID : WOS:000362565800001