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
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.
. [J]. 中国物理快报, 2016, 33(03): 35201-035201.
S. H. Kim. 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. Chin. Phys. Lett., 2016, 33(03): 35201-035201.
2016, Vol. 33 
