Population inversion in fluorescing fragments of super-excited molecules inside an air filament
Population inversion in fluorescing fragments of super-excited molecules inside an air filament |
| Fig.#cod#x0A0;6. The fluorescence intensity of OH at 308.9#cod#x0A0;nm versus the filament length. The fluorescence is recorded in backward a and lateral b direction. [ 5 ] |
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