Details
| Original language | English |
|---|---|
| Title of host publication | 41st Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials |
| Subtitle of host publication | 2009 |
| Publication status | Published - 31 Dec 2009 |
| Externally published | Yes |
| Event | 41st Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials: 2009 - Boulder, CO, United States Duration: 21 Sept 2009 → 23 Sept 2009 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 7504 |
| ISSN (Print) | 0277-786X |
Abstract
The stability of thin film coatings for applications especially in the UV spectral range is oftentimes a limiting factor in the further development of radiation sources and beam delivery systems. Particularly, functional coatings on laser and conversions crystals as well as resonator mirrors show an insufficient lifetime due to laser-induced degradation. Previous investigations in the power handling capability of UV coatings mostly concentrate on the properties of pure oxide materials and particle mitigation. Recent innovations in ion beam sputtering technology enabled efficient deposition of mixture coatings of different oxide materials. In combination with an advanced thickness monitoring equipment, the described IBS deposition systems are capable of employing designs with sub-layers of a few nm thickness. In the present investigation, the stability of classical designs using pure oxide materials is compared with gradient index design concepts based on mixture materials. Reflecting and transmitting thin film coatings employing classical and gradient index approaches manufactured under comparable conditions are characterized in respect to their power handling capability. The results are analyzed before the background of theoretical expectations regarding contributions from field enhancement and absorptance effects.
Keywords
- Broadband optical monitoring, Co-deposition, Ion beam sputtering, Mixture materials, Rugate-filters
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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41st Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials: 2009. 2009. 75040B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7504).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Investigation in oxide mixture coatings with adapted gradient index profiles
AU - Starke, Kai
AU - Jensen, Lars O.
AU - Jupé, Marco
AU - Ristau, Detlev
AU - Abromavicius, Giedrius
AU - Juskevicius, Kestutis
AU - Buzelis, Rytis
AU - Drazdys, Ramutis
PY - 2009/12/31
Y1 - 2009/12/31
N2 - The stability of thin film coatings for applications especially in the UV spectral range is oftentimes a limiting factor in the further development of radiation sources and beam delivery systems. Particularly, functional coatings on laser and conversions crystals as well as resonator mirrors show an insufficient lifetime due to laser-induced degradation. Previous investigations in the power handling capability of UV coatings mostly concentrate on the properties of pure oxide materials and particle mitigation. Recent innovations in ion beam sputtering technology enabled efficient deposition of mixture coatings of different oxide materials. In combination with an advanced thickness monitoring equipment, the described IBS deposition systems are capable of employing designs with sub-layers of a few nm thickness. In the present investigation, the stability of classical designs using pure oxide materials is compared with gradient index design concepts based on mixture materials. Reflecting and transmitting thin film coatings employing classical and gradient index approaches manufactured under comparable conditions are characterized in respect to their power handling capability. The results are analyzed before the background of theoretical expectations regarding contributions from field enhancement and absorptance effects.
AB - The stability of thin film coatings for applications especially in the UV spectral range is oftentimes a limiting factor in the further development of radiation sources and beam delivery systems. Particularly, functional coatings on laser and conversions crystals as well as resonator mirrors show an insufficient lifetime due to laser-induced degradation. Previous investigations in the power handling capability of UV coatings mostly concentrate on the properties of pure oxide materials and particle mitigation. Recent innovations in ion beam sputtering technology enabled efficient deposition of mixture coatings of different oxide materials. In combination with an advanced thickness monitoring equipment, the described IBS deposition systems are capable of employing designs with sub-layers of a few nm thickness. In the present investigation, the stability of classical designs using pure oxide materials is compared with gradient index design concepts based on mixture materials. Reflecting and transmitting thin film coatings employing classical and gradient index approaches manufactured under comparable conditions are characterized in respect to their power handling capability. The results are analyzed before the background of theoretical expectations regarding contributions from field enhancement and absorptance effects.
KW - Broadband optical monitoring
KW - Co-deposition
KW - Ion beam sputtering
KW - Mixture materials
KW - Rugate-filters
UR - http://www.scopus.com/inward/record.url?scp=77949901502&partnerID=8YFLogxK
U2 - 10.1117/12.836462
DO - 10.1117/12.836462
M3 - Conference contribution
AN - SCOPUS:77949901502
SN - 9780819478825
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 41st Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials
T2 - 41st Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials: 2009
Y2 - 21 September 2009 through 23 September 2009
ER -