About: Laser damage testing of optical components under cryogenic conditions

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this contribution we present a technology for deposition and testing of interference coatings for optical components designed to operate in power pulsed lasers. The aim of the technology is to prepare components for high power laser facilities such as ELI (Extreme Light Infrastructure) or HiLASE. ELI is a part of the Eropean plan to build a new generation of large research facilities selected by the the Eropean Strategy Forum for Research Infrastructures (ESFRI). These facilities rely on the use of diode pumped solid state lasers (DPSSL). The choice of the material or the lasers' optical components is critical. Some of the most important properties include the ability to be antireflection and high reflection coated to reduce the energy losses and increase the overall efficiency. As large amounts of hear need to be dissipated during laser operation, cryogenic cooling is necessary. The conducted experiments served as preliminary tests of laser damage threshold measurement methodology that we plan to use in the future. We designed a special apparatus consistion of a vacuum chamber an a cooling system. The samples were placed into the vacuum chamber which was evacuated and them the samples were cooled down to approximately 120K and illuminated by a pulsed laser. Pulse duration was in the nanosecond region. Multiple test sites on the sample's surface were used for different laser pulse energies. We used optical and electron microscopy and spectrophotometer measurements for coating investigation after the conducted experiments. In this contribution we present a technology for deposition and testing of interference coatings for optical components designed to operate in power pulsed lasers. The aim of the technology is to prepare components for high power laser facilities such as ELI (Extreme Light Infrastructure) or HiLASE. ELI is a part of the Eropean plan to build a new generation of large research facilities selected by the the Eropean Strategy Forum for Research Infrastructures (ESFRI). These facilities rely on the use of diode pumped solid state lasers (DPSSL). The choice of the material or the lasers' optical components is critical. Some of the most important properties include the ability to be antireflection and high reflection coated to reduce the energy losses and increase the overall efficiency. As large amounts of hear need to be dissipated during laser operation, cryogenic cooling is necessary. The conducted experiments served as preliminary tests of laser damage threshold measurement methodology that we plan to use in the future. We designed a special apparatus consistion of a vacuum chamber an a cooling system. The samples were placed into the vacuum chamber which was evacuated and them the samples were cooled down to approximately 120K and illuminated by a pulsed laser. Pulse duration was in the nanosecond region. Multiple test sites on the sample's surface were used for different laser pulse energies. We used optical and electron microscopy and spectrophotometer measurements for coating investigation after the conducted experiments. (en)
Title	Laser damage testing of optical components under cryogenic conditions Laser damage testing of optical components under cryogenic conditions (en)
skos:prefLabel	Laser damage testing of optical components under cryogenic conditions Laser damage testing of optical components under cryogenic conditions (en)
skos:notation	RIV/68081731:_____/12:00388108!RIV13-GA0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(EE2.4.31.0016), P(GA102/09/1276), P(TA02010711)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Lazar, Josef Oulehla, Jindřich Pokorný, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	146476
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/12:00388108
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	interference coatings; thin layers; laser crystals; fusion (en)
http://linked.open.../riv/klicoveSlovo	interference coatings fusion laser crystals thin layers
http://linked.open...ontrolniKodProRIV	[7898340A8A4D]
http://linked.open...v/mistoKonaniAkce	Ostravice
http://linked.open...i/riv/mistoVydani	Bellingham
http://linked.open...i/riv/nazevZdroje	CPS 2012. 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE Vol.8697)
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Interferometer with full in-line compensation of the fluctuations of refractive index Advanced interferometric systems for measurement in nanotechnology MEDTECH - educational and research partner network in medicine, biomedicine and scientific instruments
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Lazar, Josef Pokorný, Pavel Oulehla, Jindřich
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2012-09-03 (xsd:date)
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1117/12.2010580
http://purl.org/ne...btex#hasPublisher	SPIE
https://schema.org/isbn	978-0-8194-9481-8

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