INVESTIGATION ON RADIATION FROM A VLASOV MODE CONVERTER FOR W-BAND WHISPERING-GALLERY MODE GYROTRON INVESTIGATION ON RADIATION FROM A VLASOV MODE CONVERTER FOR W-BAND WHISPERING-GALLERY MODE GYROTRON

The principle of Vlasov mode converter for whispering-gallery mode gyrotron was studied in detail by using a geometric optics model. The radiation field passing through the mode converter was analyzed by using the equivalent image source model and the vector diffraction theory. After considering som...

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Bibliographic Details
Published inHong wai yu hao mi bo xue bao Vol. 29; no. 2; pp. 109 - 113
Main Authors WANG, Bin, LIU, Pu-Kun, GENG, Zhi-Hui
Format Journal Article
LanguageChinese
Published 06.05.2010
Subjects
Beams (radiation)
Converters
Equivalence
Gaussian beams (optics)
Gyrotrons
Infrared
Mathematical models
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Summary:The principle of Vlasov mode converter for whispering-gallery mode gyrotron was studied in detail by using a geometric optics model. The radiation field passing through the mode converter was analyzed by using the equivalent image source model and the vector diffraction theory. After considering some particular parameters of W-band whispering-gallery mode gyrotron, the field distribution of radiated beam passing throngh Vlasov mode converter was discussed by numerical calculation. The results indicate that the high-order whispering-gallery mode inside the gyrotron is converted into Gaussian beams in free space by Vlasov mode converter, and the Gaussian distribution in the far zone is superior to that in the near zone.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1001-9014
DOI:10.3724/SP.J.1010.2010.00109