XXIII International symposium ''Nanophysics and Nanoelectronics'', Nizhny Novgorod, March 11–14, 2019
Second-harmonic generation of subterahertz gyrotron radiation by frequency doubling in InP : Fe and its application for magnetospectroscopy of semiconductor structures
Abstract:
The possibility of obtaining intense terahertz radiation due to second-order lattice nonlinearity in indium-phosphide crystals doped with iron is discussed. As a source of radiation, subterahertz gyrotrons are considered. It is shown that the efficiency of frequency doubling can reach 3%, which opens up the possibility for developing a new generation of terahertz radiation sources. The possibility of applying second-harmonic radiation for the magnetospectroscopy of semiconductor structures with quasi-Dirac dispersion is demonstrated.
Keywords:gyrotrons, frequency doubling, terahertz radiation, indium phosphide, second-order nonlinearity.