Ultra high damage threshold optics for high power lasers

Autor:	Hitoki Yoneda, Yurina Michine
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Materials science genetic structures General Physics and Astronomy Physics::Optics lcsh:Astrophysics 02 engineering and technology Diffraction efficiency medicine.disease_cause 01 natural sciences law.invention Optics law 0103 physical sciences lcsh:QB460-466 medicine Physics::Atomic Physics 010306 general physics Diffraction grating High power lasers business.industry Nanosecond 021001 nanoscience & nanotechnology Laser eye diseases lcsh:QC1-999 Power (physics) Pulse (physics) biological sciences 0210 nano-technology business Ultraviolet lcsh:Physics
Zdroj:	Communications Physics, Vol 3, Iss 1, Pp 1-7 (2020)
ISSN:	2399-3650
Popis:	The output energies of lasers have increased year-by-year since their invention. Compared to this increase of laser energies, the damage threshold of optical components has not strongly changed. Therefore, the size of optics in high-energy laser system increases. This situation could change dramatically if optics with higher damage threshold were developed. Here, we propose a high damage threshold optics using a neutral gas as an active medium. More than 95% diffraction efficiency has been achieved. The damage threshold for a 6 ns laser pulse is measured to be 1.6 kJ/cm2. The aperture size of the present system is about 60 mm2. Based on this result, we anticipate that control of a 1 kJ laser beam may be achievable using 1 cm sized optics, driven by a
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f19a8d7a4259c4f6e49f5ac094bed01c http://link.springer.com/article/10.1038/s42005-020-0286-6 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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