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Nonlinear Simulation of a Cyclotron Autoresonance Maser (CARM) Operating in a Transverse Magnetic Mode

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Abstract

In the gyrotron operation, the transverse-magnetic (TM) mode is excluded because the TM mode instability vanishes when the vacuum waveguide mode and the beam mode are at grazing incidence. However, situation changes in a cyclotron autoresonance maser (CARM) interaction. In this paper nonlinear formulation of a TM-mode CARM is derived, and detailed simulations are presented for the TM1,1-mode CARM. Simulation results show that a TM1,1-mode CARM can reach high power of megawatts and ultrahigh gain of more than 70 dB, as a TE1,1-mode gyrotron traveling wave tube (gyro-TWT) and TE1,1-mode CARM did in the reported experiments.

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Acknowledgements

This work was supported by the National Science Foundation of China (Grant No. 60871023).

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Authors and Affiliations

  1. Institute of Photoelectronics, School of Information Science and Technology, Southwest Jiaotong University, Campus Mail Box 50, Chengdu, Sichuan, 610031, People’s Republic of China

    Bing-Fu Liu & Shi-Chang Zhang

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  1. Bing-Fu Liu
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  2. Shi-Chang Zhang
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Correspondence to Shi-Chang Zhang.

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Liu, BF., Zhang, SC. Nonlinear Simulation of a Cyclotron Autoresonance Maser (CARM) Operating in a Transverse Magnetic Mode. J Infrared Milli Terahz Waves 32, 8–15 (2011). https://doi.org/10.1007/s10762-010-9752-7

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  • DOI: https://doi.org/10.1007/s10762-010-9752-7

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