Femtosecond laser-induced modification of potassium-magnesium silicate glasses: An analysis of structural changes by near edge x-ray absorption spectroscopy

Journal Article · Mon May 28 00:00:00 EDT 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4723718· OSTI ID:22025578

Seuthe, T; Eberstein, M ^[1]; Hoefner, M; Eichler, H J; Grehn, M ^[2]; Reinhardt, F ^[3]; Tsai, W J ^[4]; Bonse, J ^[5]

---

1. Fraunhofer-Institut fuer Keramische Technologien und Systeme (IKTS), Winterbergstrasse 28, 01277 Dresden (Germany)
2. Technische Universitaet Berlin, Institut fuer Optik und Atomare Physik, Strasse des 17. Juni 135, 10623 Berlin (Germany)
3. Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany)
4. ITRI South, Industrial Technology Research Institute, 8 Gongyan Rd., Liu-jia District, Tainan City 73445, Taiwan (China)
5. BAM Bundesanstalt fuer Materialforschung und - pruefung, Unter den Eichen 87, 12205 Berlin (Germany)

The effects of femtosecond laser pulse irradiation on the glass structure of alkaline silicate glasses were investigated by x-ray absorption near edge structure spectroscopy using the beamline of the Physikalisch-Technische Bundesanstalt at the electron synchrotron BESSY II in Berlin (Germany) by analyzing the magnesium K-edge absorption peak for different laser fluences. The application of fluences above the material modification threshold (2.1 J/cm{sup 2}) leads to a characteristic shift of {approx}1.0 eV in the K-edge revealing a reduced ({approx}3%) mean magnesium bond length to the ligated oxygen ions (Mg-O) along with a reduced average coordination number of the Mg ions.

• OSTI ID: 22025578
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 22 Vol. 100; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
BESSY STORAGE RING
BOND LENGTHS
ELECTRONS
EV RANGE
GLASS
MAGNESIUM
MAGNESIUM IONS
MAGNESIUM SILICATES
OXYGEN IONS
PHYSICAL RADIATION EFFECTS
POTASSIUM
PULSED IRRADIATION
X RADIATION
X-RAY SPECTROSCOPY