Quantitative characterization of energy absorption in femtosecond laser micro-modification of fused silica


We present the results of experimental and theoretical study of an energy absorption of femtosecond laser pulse in fused silica. Fundamental and second harmonics of ytterbium laser were used in experiment while general case was considered theoretically and numerically. More efficient absorption at the second harmonics is confirmed both experimentally and numerically. Quantitative characterization of the theoretical model is performed by fitting key parameters of the absorption process such as cross-section of multi-photon absorption and effective electronic collision and recombination times.

Publication DOI: https://doi.org/10.1364/OE.23.032541
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Uncontrolled Keywords: transparent materials,induced breakdown,refreactive index,wave guides,glass,written,pulses,inscripton,irradiation,fabrication,Atomic and Molecular Physics, and Optics
Full Text Link: https://www.osa ... =oe-23-25-32541
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-12-09
Accepted Date: 2015-11-22
Submitted Date: 2015-10-12
Authors: Dostovalov, A.V.
Wolf, A.A.
Mezentsev, V.K. ( 0000-0002-8415-1767)
Okhrimchuk, A.G.
Babin, S.A.

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