Details
| Original language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 63 |
| Issue number | 4 |
| Publication status | Published - 9 Jan 2001 |
| Externally published | Yes |
Abstract
Laser-induced breakdown of a high-quality mirror consisting of alternating 㮸/4 layers of Ta2O5 and SiO2 and a single 500-nm thin film of Ta2O5 were studied with amplified and unamplified femtosecond pulses. The experimental data can be fitted with a model taking into account multiphoton absorption, impact ionization, and local intensity enhancements due to interference effects in the films. Incubation effects are observed when the coatings are damaged with multiple pulses from a femtosecond oscillator. The results indicate that state of the art, high-quality thin films show a damage behavior that is similar to bulk materials. Defects and impurities play a negligible role.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B - Condensed Matter and Materials Physics, Vol. 63, No. 4, 09.01.2001.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Femtosecond laser pulse induced breakdown in dielectric thin films
AU - Jasapara, Jayesh C.
AU - Nampoothiri, A. V. Vasudevan
AU - Rudolph, Wolfgang G.
AU - Ristau, Detlev
AU - Starke, Kai
PY - 2001/1/9
Y1 - 2001/1/9
N2 - Laser-induced breakdown of a high-quality mirror consisting of alternating 㮸/4 layers of Ta2O5 and SiO2 and a single 500-nm thin film of Ta2O5 were studied with amplified and unamplified femtosecond pulses. The experimental data can be fitted with a model taking into account multiphoton absorption, impact ionization, and local intensity enhancements due to interference effects in the films. Incubation effects are observed when the coatings are damaged with multiple pulses from a femtosecond oscillator. The results indicate that state of the art, high-quality thin films show a damage behavior that is similar to bulk materials. Defects and impurities play a negligible role.
AB - Laser-induced breakdown of a high-quality mirror consisting of alternating 㮸/4 layers of Ta2O5 and SiO2 and a single 500-nm thin film of Ta2O5 were studied with amplified and unamplified femtosecond pulses. The experimental data can be fitted with a model taking into account multiphoton absorption, impact ionization, and local intensity enhancements due to interference effects in the films. Incubation effects are observed when the coatings are damaged with multiple pulses from a femtosecond oscillator. The results indicate that state of the art, high-quality thin films show a damage behavior that is similar to bulk materials. Defects and impurities play a negligible role.
UR - http://www.scopus.com/inward/record.url?scp=0035135131&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.63.045117
DO - 10.1103/PhysRevB.63.045117
M3 - Article
AN - SCOPUS:0035135131
VL - 63
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 4
ER -