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

Abstract

Terahertz (THz) NH 3 lasing with optical pumping by electron-beam-sustained discharge "long" (∼100 μs) CO 2 laser pulses was obtained. The NH 3 laser emission pulses and the "long" pulses of the CO 2 pump laser were simultaneously measured with nanosecond response time. The NH 3 lasing duration and its delay with respect to the pump pulse were measured for various CO 2 laser pulse energies. For the CO 2 laser pump line 9R(30), three wavelengths of 67.2, 83.8, and 88.9 μm were recorded. For the CO 2 laser pump line 9R( 16), only a single NH 3 laser line with a wavelength of 90.4 μm was detected.