Details
| Original language | English |
|---|---|
| Title of host publication | 48th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2016 |
| Publisher | SPIE |
| ISBN (electronic) | 9781510604360 |
| Publication status | Published - 6 Dec 2016 |
| Event | 48th Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials 2016 - Boulder, United States Duration: 25 Sept 2016 → 28 Sept 2016 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 10014 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
The present contribution is addressed to an improved method to fabricate dielectric dispersive compensating mirrors (CMs) with an increased laser induced damage threshold (LIDT) by the use of ternary composite layers. Taking advantage of a novel in-situ phase monitor system, it is possible to control the sensitive deposition process more precisely. The study is initiated by a design synthesis, to achieve optimum reflection and GDD values for a conventional high low stack (HL)n. Afterwards the field intensity is analyzed, and layers affected by highest electric field intensities are exchanged by ternary composites of TaxSiyOz. Both designs have similar target specifications whereby one design is using ternary composites and the other one is distinguished by a (HL)n. The first layers of the stack are switched applying in-situ optical broad band monitoring in conjunction with a forward re-optimization algorithm, which also manipulates the layers remaining for deposition at each switching event. To accomplish the demanded GDD-spectra, the last layers are controlled by a novel in-situ white light interferometer operating in the infrared spectral range. Finally the CMs are measured in a 10.000 on 1 procedure according to ISO 21254 applying pulses with a duration of 130 fs at a central wavelength of 775 nm to determine the laser induced damage threshold.
Keywords
- Chirp mirror, Design synthesis, GDD, IBS process, In situ GDD measurement, LIDT, Ternary composites, Ultra fast optics
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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48th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2016. SPIE, 2016. 100141Z (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10014).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Improved LIDT values for dielectric dispersive compensating mirrors applying ternary composites
AU - Willemsen, Thomas
AU - Schlichting, S.
AU - Gyamfi, M.
AU - Jupé, M.
AU - Ehlers, H.
AU - Morgner, Uwe
AU - Ristau, Detlev
PY - 2016/12/6
Y1 - 2016/12/6
N2 - The present contribution is addressed to an improved method to fabricate dielectric dispersive compensating mirrors (CMs) with an increased laser induced damage threshold (LIDT) by the use of ternary composite layers. Taking advantage of a novel in-situ phase monitor system, it is possible to control the sensitive deposition process more precisely. The study is initiated by a design synthesis, to achieve optimum reflection and GDD values for a conventional high low stack (HL)n. Afterwards the field intensity is analyzed, and layers affected by highest electric field intensities are exchanged by ternary composites of TaxSiyOz. Both designs have similar target specifications whereby one design is using ternary composites and the other one is distinguished by a (HL)n. The first layers of the stack are switched applying in-situ optical broad band monitoring in conjunction with a forward re-optimization algorithm, which also manipulates the layers remaining for deposition at each switching event. To accomplish the demanded GDD-spectra, the last layers are controlled by a novel in-situ white light interferometer operating in the infrared spectral range. Finally the CMs are measured in a 10.000 on 1 procedure according to ISO 21254 applying pulses with a duration of 130 fs at a central wavelength of 775 nm to determine the laser induced damage threshold.
AB - The present contribution is addressed to an improved method to fabricate dielectric dispersive compensating mirrors (CMs) with an increased laser induced damage threshold (LIDT) by the use of ternary composite layers. Taking advantage of a novel in-situ phase monitor system, it is possible to control the sensitive deposition process more precisely. The study is initiated by a design synthesis, to achieve optimum reflection and GDD values for a conventional high low stack (HL)n. Afterwards the field intensity is analyzed, and layers affected by highest electric field intensities are exchanged by ternary composites of TaxSiyOz. Both designs have similar target specifications whereby one design is using ternary composites and the other one is distinguished by a (HL)n. The first layers of the stack are switched applying in-situ optical broad band monitoring in conjunction with a forward re-optimization algorithm, which also manipulates the layers remaining for deposition at each switching event. To accomplish the demanded GDD-spectra, the last layers are controlled by a novel in-situ white light interferometer operating in the infrared spectral range. Finally the CMs are measured in a 10.000 on 1 procedure according to ISO 21254 applying pulses with a duration of 130 fs at a central wavelength of 775 nm to determine the laser induced damage threshold.
KW - Chirp mirror
KW - Design synthesis
KW - GDD
KW - IBS process
KW - In situ GDD measurement
KW - LIDT
KW - Ternary composites
KW - Ultra fast optics
UR - http://www.scopus.com/inward/record.url?scp=85015698428&partnerID=8YFLogxK
U2 - 10.1117/12.2244835
DO - 10.1117/12.2244835
M3 - Conference contribution
AN - SCOPUS:85015698428
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 48th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2016
PB - SPIE
T2 - 48th Annual Laser Damage Symposium - Laser-Induced Damage in Optical Materials 2016
Y2 - 25 September 2016 through 28 September 2016
ER -