{"id":21683,"date":"2022-06-29T23:53:36","date_gmt":"2022-06-29T21:53:36","guid":{"rendered":"https:\/\/www.hilase.cz\/?post_type=publikace&#038;p=21683"},"modified":"2023-03-07T17:18:04","modified_gmt":"2023-03-07T16:18:04","slug":"melting-of-gold-by-ultrashort-laser-pulses-advanced-two-temperature-modeling-and-comparison-with-surface-damage-experiments","status":"publish","type":"publikace","link":"https:\/\/www.hilase.cz\/en\/publikace\/melting-of-gold-by-ultrashort-laser-pulses-advanced-two-temperature-modeling-and-comparison-with-surface-damage-experiments\/","title":{"rendered":"Melting of gold by ultrashort laser pulses: advanced two-temperature modeling and comparison with surface damage experiments"},"content":{"rendered":"","protected":false},"author":15,"template":"","class_list":["post-21683","publikace","type-publikace","status-publish","hentry"],"acf":{"rok_vydani":"2022","vydavatel":"Applied Physics A","odkaz":"https:\/\/link.springer.com\/article\/10.1007\/s00339-022-05733-4","autor":[{"autor":"Sergey A. Lizunov","zvyraznit_autora":true},{"autor":"Alexander V. Bulgakov","zvyraznit_autora":false},{"autor":"Eleanor E. B. Campbell","zvyraznit_autora":true},{"autor":"Nadezhda M. Bulgakova","zvyraznit_autora":true}],"isbn":"","doi":"https:\/\/doi.org\/10.1007\/s00339-022-05733-4","text":"The ultrafast-laser-induced solid\u2013liquid phase transition in metals is still not clearly understood and its accurate quantitative description remains a challenge. Here, we systematically investigated, both experimentally and theoretically, the melting of gold by single femto- and picosecond near-infrared laser pulses. Two laser systems with wavelengths of 800 and 1030 nm and pulse durations ranging from 124 fs to 7 ps were used, and the damage and ablation thresholds were determined for each irradiation condition. The theoretical analysis was based on two-temperature modeling. Different expressions for the electron\u2013lattice coupling rate and contribution of ballistic electrons were examined. In addition, the number of free electrons involved in the optical response is suggested to be dependent on the laser intensity and the influence of the fraction of involved electrons on the damage threshold was investigated. Only one combination of modelling parameters was able to describe consistently all the measured damage thresholds. Physical arguments are presented to explain the modeling results."},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Melting of gold by ultrashort laser pulses: advanced two-temperature modeling and comparison with surface damage experiments - HiLASE<\/title>\n<meta name=\"description\" content=\"Article on Melting of gold by ultrashort laser pulses: advanced two-temperature modeling and comparison with surface damage experiments, in the journal of Applied Physics A.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hilase.cz\/en\/publikace\/melting-of-gold-by-ultrashort-laser-pulses-advanced-two-temperature-modeling-and-comparison-with-surface-damage-experiments\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Melting of gold by ultrashort laser pulses: advanced two-temperature modeling and comparison with surface damage experiments - 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