Electron solvation in photoionized water (IMAGE)
Caption
(a) Diagram of the experimental system. (b) THz time-domain waveforms in liquid water without optical pump (black line) and under the maximal absorption caused by the formed plasma (red line). (c) Transient evolution curve of THz wave absorption by plasma in water with the pump energy of 90 μJ/pulse. (d) Black points indicate the peak quasi-free electron density with different pump pulse energies. The orange points show the relationship between the solvation ratio and the pump pulse energy at the equilibrium state.
Credit
Tan et al., doi 10.1117/1.AP.3.1.015002
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