Abstract

Laser ablation of dielectrics with ultrashort pulses has been studied extensively and has led to a well-established qualitative picture of the excitation process [1]. Much of the insight into the relevant physical processes has been obtained from numerical simulations of the excitation process which have shown quantitative agreement with several observables such as transient reflectivity and absorption measurements, ablated hole depths, and ablation thresholds [2,3] which describes the conduction band as a set of discretized energy levels and includes strong-field ionization, plasma absorption, and collisional excitation.

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