Spectroscopy of a laser plume arising under radiation of a ytterbium fiber laser
| Autor: | V. I. Solomonov, V. V. Lisenkov, V. V. Platonov, A. V. Podkin, A. V. Spirina, Vladimir V. Osipov |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Ytterbium Materials science business.industry chemistry.chemical_element Radiation Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Wavelength Optics chemistry law Fiber laser 0103 physical sciences Irradiation Atomic physics Spectroscopy business Luminescence |
| Zdroj: | Optics and Spectroscopy. 122:155-161 |
| ISSN: | 1562-6911 0030-400X |
| Popis: | The spectra of luminescence of plumes that occur near targets of Nd: Y2O3, YSZ, and Al2O3 when they are irradiated by pulses of a ytterbium fiber laser with a wavelength of 1.07 μm, duration of 1450 μs, and intensity of 0.4 MW/cm2 are studied. Craters with a diameter of 400 μm and a depth of 600 μm appeared under such exposure in the targets. It is shown that the bands of the cation’s radicals of the targets, the intensities of which are distributed according to a law close to Planck’s law, predominate in the spectra of the plumes. On this basis, the temperature of the plumes was determined. It was about 2200–2280 K at the surface of the target, which is below the boiling temperature of the target due to cooling of the vapor during the passage of the deep laser crater. |
| Databáze: | OpenAIRE |
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