Spectral splitting of the lasing emission of nitrogen ions pumped by 800 nm femtosecond laser pulses

Qi Lu, Xiang Zhang, Santiago Lopez, Haicheng Mei, Liang Xu, Qingqing Liang, Aurelien Houard, Vladimir Tikhonchuk, Andre Mysyrowicz & Eduardo Oliva
We report on a spectral splitting effect of the cavity-less lasing emission of nitrogen ions at 391.4 nm pumped by the 800 nm femtosecond laser pulses. It was found that with the increase of the nitrogen gas pressure and pump pulse energy, both R and P branches experience spectral splitting. With an external injected seeding pulse, similar split spectral line is observed for the amplified emission. In contrast, for the fluorescence radiation, no such spectral...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.