Resistance of diamond optics to high-power fiber laser radiation
| Autor: | S. M. Aranchii, M. V. Ruzin, Vitali I. Konov, E. E. Ashkenazi, S. A. Uspenskii, A. F. Popovich, V. G. Ralchenko, V. E. Rogalin |
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| Rok vydání: | 2012 |
| Předmět: |
Ytterbium
Materials science business.industry chemistry.chemical_element Diamond Chemical vapor deposition engineering.material Radiation Condensed Matter Physics Laser Electronic Optical and Magnetic Materials law.invention Optics Thermal conductivity chemistry law Fiber laser Materials Chemistry engineering Electrical and Electronic Engineering business Power density |
| Zdroj: | Russian Microelectronics. 41:464-468 |
| ISSN: | 1608-3415 1063-7397 |
| DOI: | 10.1134/s106373971208015x |
| Popis: | The resistance of optical windows and mirrors that are made of polycrystalline CVD diamonds (with a 25-mm diameter and 1.3-mm thickness) with a heat conductivity of 1970 W/mK is studied upon the radiation of the CW ytterbium laser (λ = 1.07 μm and the power is 10 kW). It is determined that the window withstands a power density of 11.7 MW/cm2, and a 25-layer interference mirror on a diamond plate was destroyed (without cooling) at 8.2 MW/cm2. The simulation of the water-cooled window showed that its maximum heating will not exceed 100°C at an incident power of 35 kW. It is shown that unique properties of the CVD diamond allow one to consider this material promising for applications in high-power lasers. |
| Databáze: | OpenAIRE |
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