Design of a quasi-optical system with variable output beam size

Authors
Ogawa, I Idehara, T Maekawa, S Kasparek, W
Citation
I. Ogawa et al., Design of a quasi-optical system with variable output beam size, INT J ELECT, 87(9), 2000, pp. 1095-1104
Citations number
18
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
INTERNATIONAL JOURNAL OF ELECTRONICS
ISSN journal
00207217 → ACNP
Volume
87
Issue
9
Year of publication
2000
Pages
1095 - 1104
Database
ISI
SICI code
0020-7217(200009)87:9<1095:DOAQSW>2.0.ZU;2-Q
Abstract
A quasi-optical system consisting of a quasi-optical antenna and two ellips oidal mirrors can convert the gyrotron output (TE15 mode, 354 GHz) into a g aussian-like beam. The waist size of the beam produced is adjusted by movin g a second ellipsoidal mirror. The second mirror with focal length of 520 m m offers a tunable range from 2.0 mm to 5.4 mm, and those with focal length s of 1190 mm and 2390 mm over other tunable ranges from 5.1 mm to 12.9 mm a nd from 12.0 mm to 25.1 mm, respectively.