Issue |
EPL
Volume 105, Number 4, February 2014
|
|
---|---|---|
Article Number | 47001 | |
Number of page(s) | 6 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/105/47001 | |
Published online | 28 February 2014 |
Probing ultrashort-pulse laser excitation of sapphire: From the initial carrier creation to material ablation
1 Department of Physics and Astronomy, Aarhus University - DK-8000 Aarhus C, Denmark
2 Laboratoire des Solides Irradiés/CEA IRAMIS, Ecole Polytechnique - Palaiseau, France
Received: 27 November 2013
Accepted: 5 February 2014
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.
PACS: 79.20.Eb – Laser ablation / 78.47.J- – Ultrafast spectroscopy (<1 psec) / 52.38.Mf – Laser ablation
© EPLA, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.