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Multi-Watt cavity for 266 nm light in vacuum

Brand, Christian and Knobloch, Christian and Simonović, Ksenija and Arndt, Markus (2023) Multi-Watt cavity for 266 nm light in vacuum. Physica Scripta, 98 (8), 085521. Institute of Physics Publishing. doi: 10.1088/1402-4896/ace300. ISSN 0031-8949.

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Official URL: https://dx.doi.org/10.1088/1402-4896/ace300


Intense coherent ultraviolet radiation is gaining increasing importance in advanced quantum technologies—from optical clocks and quantum computers to matter-wave interferometry—as well as in photochemistry, life sciences, semiconductor industry, and space applications. Since the preparation of multi-Watt light sources is still an open challenge for many ultraviolet wavelengths, resonant enhancement in a cavity is an attractive alternative. However, many experiments with atoms, molecules or nanoparticles require isolation in high vacuum where UV optics often show fast degradation. Here, we present stable performance of a cavity for 266 nm light with several Watt of intra-cavity power in high vacuum despite the presence of hydrocarbons. Comparing two sets of cavity mirrors indicates that this feat is connected to the micro-chemical environment at the topmost coating layer. Our study emphasizes the need for further developments in this direction to facilitate robust, compact, and high-performing devices employing UV radiation.

Item URL in elib:https://elib.dlr.de/196589/
Document Type:Article
Title:Multi-Watt cavity for 266 nm light in vacuum
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Simonović, KsenijaUNSPECIFIEDhttps://orcid.org/0000-0001-7941-7295UNSPECIFIED
Arndt, MarkusUNSPECIFIEDhttps://orcid.org/0000-0002-9487-4985UNSPECIFIED
Date:29 June 2023
Journal or Publication Title:Physica Scripta
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:085521
Publisher:Institute of Physics Publishing
Keywords:Kontaminierung, 266 nm, Uv-Resonatoren, kontaminationsresistent
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - AMACRY - Diffraction of atomic matter waves by 2D crystals
Location: Ulm
Institutes and Institutions:Institute of Quantum Technologies > Quantum Nanophyics
Deposited By: Brand, Christian
Deposited On:29 Aug 2023 18:59
Last Modified:04 Dec 2023 11:38

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