| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
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 SM ISO690:2012BLONSKYI, Ivan, KADAN, Viktor, SHPOTYUK, Oleh, YOVU, M., PAVLOV, Ihor. Femtosecond filamentation in chalcogenide glasses limited by two-photon absorption. In: Optical Materials, 2011, vol. 32, pp. 1553-1557. ISSN 0925-3467. DOI: https://doi.org/10.1016/j.optmat.2010.07.006 |
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  Optical Materials |
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| Volumul 32 / 2011 / ISSN 0925-3467 | |
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| DOI:https://doi.org/10.1016/j.optmat.2010.07.006 | |
| Pag. 1553-1557 | |
| Rezumat | |
Filamentation of 800 nm femtosecond laser pulses in the conditions of strong two-photon absorption was first directly observed in As 4Ge30S66 chalcogenide glass, this effect being accompanied by increase in the pulse spectrum width from 8.5 to 11 nm and its modulation indicating the pulse temporal splitting. In contrast, there was no filamentation and pulse spectrum widening in stoichiometric As2S 3 glass. The nonlinear figure of merit was shown to be as high as 0.5 and only ∼0.1 in glassy As4Ge30S66 and As2S3, respectively. |
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| Cuvinte-cheie Chalcogenide glass, Femtosecond laser pulses, Filaments, Kerr effect, Self-focusing |
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