Probing ultrashort-pulse laser excitation of sapphire: From the initial carrier creation to material ablation - Archive ouverte HAL Access content directly
Journal Articles EPL - Europhysics Letters Year : 2014

Probing ultrashort-pulse laser excitation of sapphire: From the initial carrier creation to material ablation

(1) , (1) , (2) , (2) , (1)
1
2

Abstract

Ultrashort-pulse laser excitation of dielectrics has been investigated over a large span of intensities. Experimentally, single-shot studies on single-crystal sapphire samples combine time-resolved spectral interferometry with time-resolved reflectivity and ablation-rate measurements. The complete development of the excitation from the first creation of conduction-band electrons at low intensities to the formation of a highly excited plasma and associated material fragmentation is observed experimentally and explained by a single theoretical model, which combines material excitation in a multiple-rate equation description with light propagation. Copyright (C) EPLA, 2014

Dates and versions

hal-01011921 , version 1 (25-06-2014)

Identifiers

Cite

Kristian J. Waedegaard, Ditte B. Sandkamm, Alexandros Mouskeftaras, Stéphane Guizard, Peter Balling. Probing ultrashort-pulse laser excitation of sapphire: From the initial carrier creation to material ablation. EPL - Europhysics Letters, 2014, 105 (47001), pp.n/a. ⟨10.1209/0295-5075/105/47001⟩. ⟨hal-01011921⟩
182 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More