Share Email Print

Proceedings Paper

Ultrafast pump & probe investigations on the interaction of femtosecond laser pulses with glass
Author(s): Alexander Horn; Hooman Khajehnouri; Ernst-Wolfgang Kreutz; Reinhart Poprawe
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The change of the matrix structure of glass is investigated during and after irradiation with ultrashort pulsed laser radiation (100 fs < tp; < 3 ps) at the wavelength λ = 810 nm. The dynamics of the plasma expansion and the stress formations are visualized by time-resolved Normarski-photography. Optical microscopy visualizes the structural changes in glass. The spatial stress distribution and the refractive index change are shown in the time range 100 fs < t < 120 ns. The ionization state of atoms and/or the formation of color centers has been investigated by transient absorption spectroscopy (TAS) in the time regime 100 fs < t < 120 ns. The temporal change of the spectra shows different regimes, which can be explained by the electron and phonon relaxation.

Paper Details

Date Published: 1 August 2003
PDF: 8 pages
Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); doi: 10.1117/12.516935
Show Author Affiliations
Alexander Horn, Rheinisch-Westfaelische Technische Hochschule (Germany)
Hooman Khajehnouri, Rheinisch-Westfaelische Technische Hochschule (Germany)
Ernst-Wolfgang Kreutz, Rheinisch-Westfaelische Technische Hochschule (Germany)
Reinhart Poprawe, Rheinisch-Westfaelische Technische Hochschule (Germany)
Fraunhofer-Institut fuer Lasertechnik (Germany)

Published in SPIE Proceedings Vol. 4948:
25th International Congress on High-Speed Photography and Photonics
Claude Cavailler; Graham P. Haddleton; Manfred Hugenschmidt, Editor(s)

© SPIE. Terms of Use
Back to Top