Formation of micromodifications in a KDP crystal irradiated by tightly focused femtosecond visible laser pulsesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The formation of micromodifications in the bulk of a KDP crystal irradiated by tightly focused 600-nm, 100-fs and 200-fs, 0.02—10 μJ femtosecond laser pulses is studied. A theoretical model describing the initial stage of formation of a plasma channel taking into account field ionisation and heating of the electron component of the plasma is proposed. The laser pulse intensity (10^13 W cm-2), the electron concentration (10^20 cm-3) and the average electron temperature (5 eV) in the plasma channel are estimated.