Maser Oscillation in a Whispering-Gallery-Mode Microwave Resonator

P. -Y. Bourgeois, N. Bazin, Y. Kersale +3

We report the first observation of above-threshold maser oscillation in a whispering-gallery(WG)-mode resonator, whose quasi-transverse-magnetic, 17th azimuthal-order WG mode, at a…