High power light absorbers having anti-reflection coating
US12066679B2 · kind B2 · utility
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16References
27Claims
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Key dates
| Filing date | Dec 22, 2020 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Sep 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/024
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
High-power light absorbers (HPLAs) can exhibit low back-scattered light, mitigate stray light, and withstand high optical power. The absorbers can be used with or without baffling as beam dumps for high-power lasers. An HPLA may include a substrate made of high thermally conductive material with an anti-reflection (AR) coating formed on the substrate. A thin layer of highly absorbing material may be located between the AR coating and substrate. The substrate can be cooled with a fluid, such as water or air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.