Fengqin HUANG, Tianlun SHEN, Jinhai SI, Tao CHEN, Xun HOU. Temporal-spatial Dynamics of Femtosecond Time Resolved Plasma in Femtosecond Laser Induced Microstructure（Invited）[J]. Acta Photonica Sinica, 2021, 50(6): 50
- Acta Photonica Sinica
- Vol. 50, Issue 6, 50 (2021)
Fig. 1. Schematic diagram of the femtosecond time-resolved pump-probe shawdowgraphy
Fig. 2. Time-resolved images of plasma induced by 16.0 μJ femtosecond laser in fused silica
Fig. 3. Time-resolved image at a delay time of 300 fs， and its corresponding transmissivity image
Fig. 4. The evolution of the average transient absorption coefficient at nonlinear focus
Fig. 5. Temporal-spatial distribution of the transient electron density induced by focused femtosecond laser in the fused silica
Fig. 6. Time-resolved images of plasma induced by different pump energies and typical morphologies of microstructures
Fig. 7. Variation of transient peak electron density and its spatial position with delay time
Fig. 8. Temporal-spatial evolutions of the transient peak electron density when 16 μJ femtosecond laser was focused by microscope objective with 0.3 NA
Fig. 9. Spatial distribution of maximum transient electron density at each propagation depth induced by 16 μJ femtosecond laser. The delay time of the shadow images was 150 fs. Inset： Typical morphologies of microstructure induced by 16 μJ femtosecond laser observed under a 50× microscope
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