The existence of unguided TM and TE Gaussian beams is derived in a simple way from the wave equation for the vector potential, and the field configurations are discussed. We point out the possibility of a new type of free-electron laser.
© 1981 Optical Society of America
Lawrence W. Davis and George Patsakos, "TM and TE electromagnetic beams in free space," Opt. Lett. 6, 22-23 (1981)