Unveiling nonlinear regimes of light amplification in fused silica with femtosecond imaging spectroscopy
We observe and characterize two nonlinear light-amplification regimes with unique spectral properties and fluence dependencies in laser-excited fused silica using ultrafast pump-probe imaging spectroscopy. The two underlying mechanisms are switchable within 150 fs via the time delay between an inten...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-06-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.023341 |