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Proceedings Paper

Analysis of the nonlinear mechanisms of light absorption in transparent materials under the ultrashort pulse laser action
Author(s): Irina N. Zavestovskaya; Peter G. Eliseev; Oleg N. Krokhin
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Paper Abstract

The nonlinear absorption mechanisms in transparent materials under ultrashort laser pulses irradiation are considered theoretically. Nitride semiconductor, sapphire and others transparent dielectrics was investigated. The ablation threshold for theses materials is in multi-TW/cm2 range. The model is used based on the tunneling absorption under the irradiation by high intensity ultrashort pulses in terms of theory of ionization of solid in a field of strong electromagnetic wave. Sartisfactory explanation is found of the influence of the material energy bandgap on the laser ablation threshold.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65951S (5 March 2007); doi: 10.1117/12.725818
Show Author Affiliations
Irina N. Zavestovskaya, P.N. Lebedev Physical Institute (Russia)
Peter G. Eliseev, P.N. Lebedev Physical Institute (Russia)
Univ. of New Mexico (United States)
Oleg N. Krokhin, P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III
Yuri N. Kulchin; Jinping Ou; Oleg B. Vitrik; Zhi Zhou, Editor(s)

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