New Results on the Physics of THz Gyrotrons

被引：0

作者：

Alberti, S. ^{[1
]}

Braunmueller, F. ^{[1
]}

Tran, T. M. ^{[1
]}

Genoud, J. ^{[1
]}

Vuillemin, Q. ^{[1
]}

Hogge, J-Ph. ^{[1
]}

Tran, M. Q. ^{[1
]}

Ansermet, J-Ph. ^{[2
]}

Macor, A.

de Rijk, E. ^{[2
,3
]}

机构：

[1] Ecole Polytech Fed Lausanne, Ctr Rech Phys Plasmas, Stn 13, CH-1015 Lausanne, Switzerland

[2] Ecole Polytech Fed Lausanne EPFL, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland

[3] SWISStoSA 12, CH-1015 Lausanne, Switzerland

来源：

2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2013年

基金：

瑞士国家科学基金会;

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Basic wave-particle interaction dynamics from linear to chaotic regimes is studied in detail both experimentally and theoretically on a frequency tunable gyrotron developed for DNP-NMR spectroscopy applications and generating THz radiation in continuous mode (150W) at 260GHz. The non-linear dynamics associated to the wave-particle interaction is dominated by self-consistent effects on the longitudinal profile of a given single transverse cavity-mode TEm,p. This study covers a wide range of control parameters from traveling wave tube (gyro-TWT) to gyro-backward wave oscillator (gyro-BWO) like interactions. The route to chaos via a period doubling cascade dynamics is experimentally observed and is supported by numerical simulations. In presence of phase-locked side-bands a novel regime characterized by the generation of nanosecond pulses has been experimentally identified. This novel regime is consistent with numerical simulations and may open up new applications for gyrotrons.

引用

页数：3

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