Terahertz NH3 Laser with Optical Pumping by “Long” (~100 μs) Pulses of CO2 Laser for Plasma Diagnostics

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Zazymkina, D. | Ionin, A. | Kinyaevskiy, I. | Klimachev, Yu. | Kozlov, A. Yu. | Kormashova, D. | Kotkov, A. | Lampin, Jean-Francois | Mityagin, Yu. | Savinov, S. | Sagitova, A. | Sinitsyn, D. | Ionin, M.

Edité par HAL CCSD ; MAIK Nauka/Interperiodica

International audience. A terahertz NH3 laser optically pumped by “long” (~100 μs) pulses of an electron-beam-sustained-discharge CO2 laser is demonstrated for the first time. The NH3 laser pulses and the “long” pulses of the CO2 laser are simultaneously measured with nanosecond resolution. The duration and the delay of the NH3 laser pulse relative to the pump pulse are measured depending on the pulse energy of the pump CO2 laser. The following emission wavelengths of the terahertz NH3 laser were observed upon pumping by the 9R(30) line of the CO2 laser: 67.2, 83.8, and 88.9 μm.

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