Continuous wave, frequency-tunable terahertz laser radiation generated via stimulated polariton scattering

We report the generation of CW THz radiation generated via stimulated polariton scattering in MgO:LiNbO₃. The system is capable of producing frequency tunable radiation across the range 1.5-2.3 THz and requires only 2.3 W incident diode pump power to reach threshold. Maximum THz output power of 2.3 μW has been detected for just 5.9 W incident diode pump power, at a frequency of 1.8 THz.4 page(s