Chin. Phys. Lett.  2016, Vol. 33 Issue (03): 035201    DOI: 10.1088/0256-307X/33/3/035201
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
Electron–Cyclotron Laser Using Free-Electron Two-Quantum Stark Radiation in a Strong Uniform Axial Magnetic Field and an Alternating Axial Electric Field in a Voltage-Supplied Pill-Box Cavity
S. H. Kim**
Church Road 9236, Dallas, Texas 75231, USA
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S. H. Kim 2016 Chin. Phys. Lett. 33 035201
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Abstract We consider the radiation from the beam electrons traveling in a strong uniform axial magnetic field and an axial alternating electric field of wavelength $\lambda_{\rm w}$ generated by a voltage-supplied pill-box cavity. The beam electrons emit genuine laser radiation that propagates only in the axial direction through free-electron two-quantum Stark radiation. We find that laser radiation takes place only at the expense of the axial kinetic energy when $\lambda_{\rm w}\ll c/(\omega_{\rm c}/\gamma)$, where $\omega_{\rm c}/\gamma$ is the relativistic electron–cyclotron frequency. We formulate the laser power based on quantum-wiggler electrodynamics, and envision a laser of length 10 m with estimated power 0.1 GW/(kA) in the $10^{-4}$ cm wavelength range.
Received: 09 October 2015      Published: 31 March 2016
PACS:  52.59.Rz (Free-electron devices)  
  12.20.Ds (Specific calculations)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/33/3/035201       OR      https://cpl.iphy.ac.cn/Y2016/V33/I03/035201
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S. H. Kim
[1]Kim S H 2015 J. Plasma Phys. 81 905810403
[2]Kim S H 2014 J. Korean Phys. Soc. 64 163
[3]Kim S H 2016 J. Korean Phys. Soc. (submitted)
[4]Kim S H 1993 J. Plasma Phys. 49 181
[5]Kim S H 1994 J. Korean Phys. Soc. 27 106
[6]Kim S H 2005 J. Korean Phys. Soc. 47 749
[7]Kim S H 2007 J. Korean Phys. Soc. 51 1253
[8]Kim S H, Chen K W and Yang J S 1990 J. Appl. Phys. 68 4942
[9]Friedman M and Herndon M 1972 Phys. Rev. Lett. 28 210
[10]Friedman M and Herndon M 1972 Phys. Rev. Lett. 29 55
[11]Friedman M, Hammer D, Sprangle P and Manheimer W M 1973 Phys. Rev. Lett. 31 752
[12]Friedman M and Herndon M 1973 Phys. Fluids 16 1982
[13]Carmel C and Nation J A 1973 Phys. Rev. Lett. 31 806
[14]Kovalev N F, Petelin M I, Raizer M D, Smorgonskii A V and Tsopp L E 1973 Zh. ETF Piz. Red. 18 232
[15]Kim S H 2010 J. Phys. Soc. Jpn. 79 053501
[16]Kim S H 2009 J. Korean Phys. Soc. 54 2235
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