SPIKES IN RAMAN SPECTRUM OF OPTICALLY PUMPED NH_3 LASER

摘要

From above we concluded that RPI was taking in the transition V2:a→sR(0,0) pumped by CO2-10R(6), in case of higher operating NH_3 gas pressure or lower pumping power density, the AC-Stark sectrum overlapped, that led to intense RPI, and the spikes in the spectrum appeared. The appearence of the spikes looks like an oscillation effect, in fact, it would be a kind of fine-structures of AC-Stark spectrum in a special case of RPI. The spikes looked like a flag of RPI, the more the spikes appeared, the stronger the RPI would be.