NH3 laser THz emission under optical pumping by “long”(～100 μs) CO2 laser pulses

作者：Andrey Alekseevich Ionin; Igor Olegovich Kinyaevskiy; Yuri Mikhailovich Klimachev; Andrey Yurievich Kozlov; Darya Ivanovna Kormashova^*; Andrey Alexandrovich Kotkov; Yury Alekseevich Mityagin; Sergey Alexandrovich Savinov; Adilya Maratovna Sagitova; Dmitry Vasilievich Sinitsyn; Maxim Vladimirovich Ionin

来源：Chinese Optics Letters, 2023, 21(02): 138-142.

Terahertz (THz) NH3 lasing with optical pumping by electron-beam-sustained discharge“long”(～100μs) CO2 laser pulses was obtained.The NH3laser emission pulses and the“long”pulses of the CO2 pump laser were simultaneously measured with nanosecond response time.The NH3 lasing duration and its delay with respect to the pump pulse were measured for various CO2 laser pulse energies.For the CO2 laser pump line 9R(30),three wavelengths of 67.2,83.8,and 88.9μm were recorded.For the CO2 laser pump line 9R(16),only a single NH3 laser line with a wavelength of 90.4μm was detected.