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Quasi-Optical Mode Converter for a 0.42 THz TE17,4 Mode Pulsed Gyrotron Oscillator.
- Source :
-
IEEE Transactions on Electron Devices . Apr2017, Vol. 64 Issue 4, p1751-1755. 5p. - Publication Year :
- 2017
-
Abstract
- A quasi-optical mode converter (QOMC) for a 0.42 THz, TE17,4 mode pulsed gyrotron oscillator is designed, fabricated and tested. Based on the coupled-wave theory, geometric optics theory and vector diffraction theory, a computer code is developed to design and optimize the QOMC which converts the high order TE17,4 mode into a fundamental Gaussian distribution. The numerical results show that the scalar fundamental Gaussian mode content of the wave beam at the output window is about 98.1%. The experiment result shows that a well-focused Gaussian-like beam with 95.2% scalar Gaussian mode content has been obtained by using an infrared video camera. The measured results agree well with the theoretical predictions. [ABSTRACT FROM PUBLISHER]
- Subjects :
- *GYROTRONS
*WAVE theory of light
*GAUSSIAN distribution
*MALWARE
*GAUSSIAN beams
Subjects
Details
- Language :
- English
- ISSN :
- 00189383
- Volume :
- 64
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Electron Devices
- Publication Type :
- Academic Journal
- Accession number :
- 124146641
- Full Text :
- https://doi.org/10.1109/TED.2017.2657519