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Interaction of doughnut-shaped laser pulses with glasses
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SYSNO ASEP 0481237 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Interaction of doughnut-shaped laser pulses with glasses Author(s) Zhukov, V.P. (RU)
Rubenchik, A.M. (US)
Fedoruk, M.P. (RU)
Bulgakova, Nadezhda M. (FZU-D) ORCIDNumber of authors 4 Source Title Journal of the Optical Society of America. B. - : Optical Society of America - ISSN 0740-3224
Roč. 34, č. 2 (2017), s. 463-471Number of pages 9 s. Language eng - English Country US - United States Keywords femtosecond-laser ; transparent materials ; wave-guides ; photonic devices ; fused-silica ; dielectrics ; media ; filamentation ; fabrication ; ionization Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects LO1602 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF15_003/0000445 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015086 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 UT WOS 000394028400032 EID SCOPUS 85011860355 DOI 10.1364/JOSAB.34.000463 Annotation Non-Gaussian laser beams can open new opportunities for microfabrication, including ultrashort laser direct writing. Using a model based on Maxwell's equations, we have investigated the dynamics of doughnut-shaped laser beams focused inside fused silica glass, in comparison with Gaussian pulses of the same energy. The laser propagation dynamics reveals intriguing features of beam splitting and sudden collapse toward the beam axis, overcoming the intensity clamping effect. The resulting structure of light absorption represents a very hot, hollow nanocylinder, which can lead to an implosion process that brings matter to extreme thermodynamic states. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
Number of the records: 1