Mechanisms of micro-voids formation caused by optical breakdown in KCl single crystals under laser emission
The phenomenon of optical breakdown has been studied experimentally for KCl single crystals exposed to laser emission focused on the neodymium glass with modulated quality-factor, pulse duration 5·10⁻⁸ s, wavelength λ = 1054 nm, and pulse energy of the order 1 J in the regime of local intrinsic...
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| Datum: | 2014 |
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| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2014
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| Schriftenreihe: | Вопросы атомной науки и техники |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/80354 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Mechanisms of micro-voids formation caused by optical breakdown in KCl single crystals under laser emission / М.А. Volosyuk // Вопросы атомной науки и техники. — 2014. — № 4. — С. 55-59. — Бібліогр.: 25 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The phenomenon of optical breakdown has been studied experimentally for KCl single crystals exposed to laser
emission focused on the neodymium glass with modulated quality-factor, pulse duration 5·10⁻⁸ s, wavelength
λ = 1054 nm, and pulse energy of the order 1 J in the regime of local intrinsic absorption of the laser emission by the
single crystal. Evaluations of local heat flash energetic constituents and characteristic durations for both local area
heating and relaxation processes and following comparison with experimental results have shown that the relaxation
process takes place in two stages: the first is fast phase followed by crowdion mass transfer with shock wave
participation, and the second is slow phase with participation also dislocation mass transfer. |
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