Details
| Original language | English |
|---|---|
| Pages (from-to) | 4329-4331 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 37 |
| Issue number | 20 |
| Publication status | Published - 15 Oct 2012 |
Abstract
Laser-induced damage in the nanosecond domain has been connected to the heating and breakdown of local defects within the thin film and the various interfaces. Within the femtosecond regime, the damaging events can be traced back to multiphoton-based excitation into the conduction band. When critical electron density is exceeded, an optical breakdown will occur. In this Letter we report on evidence that two-photon absorption also significantly triggers laser-induced damage in Ta2O5 thin films at 532 nm and 8 ns pulse duration. For experimental verification, single layers of Ta 2O5/SiO2 mixtures have been analyzed.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics Letters, Vol. 37, No. 20, 15.10.2012, p. 4329-4331.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Role of two-photon absorption in Ta2O5 thin films in nanosecond laser-induced damage
AU - Jensen, Lars
AU - Mende, Mathias
AU - Schrameyer, Stefan
AU - Jupé, Marco
AU - Ristau, Detlev
PY - 2012/10/15
Y1 - 2012/10/15
N2 - Laser-induced damage in the nanosecond domain has been connected to the heating and breakdown of local defects within the thin film and the various interfaces. Within the femtosecond regime, the damaging events can be traced back to multiphoton-based excitation into the conduction band. When critical electron density is exceeded, an optical breakdown will occur. In this Letter we report on evidence that two-photon absorption also significantly triggers laser-induced damage in Ta2O5 thin films at 532 nm and 8 ns pulse duration. For experimental verification, single layers of Ta 2O5/SiO2 mixtures have been analyzed.
AB - Laser-induced damage in the nanosecond domain has been connected to the heating and breakdown of local defects within the thin film and the various interfaces. Within the femtosecond regime, the damaging events can be traced back to multiphoton-based excitation into the conduction band. When critical electron density is exceeded, an optical breakdown will occur. In this Letter we report on evidence that two-photon absorption also significantly triggers laser-induced damage in Ta2O5 thin films at 532 nm and 8 ns pulse duration. For experimental verification, single layers of Ta 2O5/SiO2 mixtures have been analyzed.
UR - http://www.scopus.com/inward/record.url?scp=84867481078&partnerID=8YFLogxK
U2 - 10.1364/OL.37.004329
DO - 10.1364/OL.37.004329
M3 - Article
AN - SCOPUS:84867481078
VL - 37
SP - 4329
EP - 4331
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 20
ER -