{"id":29796,"date":"2023-11-07T20:00:13","date_gmt":"2023-11-07T19:00:13","guid":{"rendered":"https:\/\/www.hilase.cz\/?p=29796"},"modified":"2024-05-20T09:08:08","modified_gmt":"2024-05-20T07:08:08","slug":"dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon","status":"publish","type":"post","link":"https:\/\/www.hilase.cz\/en\/dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon\/","title":{"rendered":"Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[176],"class_list":["post-29796","post","type-post","status-publish","format-standard","hentry","category-paper"],"acf":{"obrazek":{"ID":29792,"id":29792,"title":"N\u00e1vrh bez n\u00e1zvu (9)","filename":"Navrh-bez-nazvu-9-7.png","filesize":65170,"url":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","link":"https:\/\/www.hilase.cz\/dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon\/navrh-bez-nazvu-9-8\/","alt":"","author":"15","description":"","caption":"","name":"navrh-bez-nazvu-9-8","status":"inherit","uploaded_to":29791,"date":"2023-10-18 08:00:15","modified":"2023-10-18 08:00:15","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.hilase.cz\/wp-includes\/images\/media\/default.png","width":314,"height":166,"sizes":{"thumbnail":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7-175x166.png","thumbnail-width":175,"thumbnail-height":166,"medium":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","medium-width":314,"medium-height":166,"medium_large":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","medium_large-width":314,"medium_large-height":166,"large":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","large-width":314,"large-height":166,"1536x1536":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","1536x1536-width":314,"1536x1536-height":166,"2048x2048":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","2048x2048-width":314,"2048x2048-height":166,"image":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","image-width":314,"image-height":166,"gallery":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7-273x166.png","gallery-width":273,"gallery-height":166,"card":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","card-width":314,"card-height":166,"square":"https:\/\/www.hilase.cz\/wp-content\/uploads\/Navrh-bez-nazvu-9-7.png","square-width":314,"square-height":166}},"obsah":[{"acf_fc_layout":"text","text":"<p>A team of HiLASE Centre researchers from the <a href=\"https:\/\/www.hilase.cz\/en\/vyzkumne-programy\/scientific-laser-applications\/\">Scientific Laser Applications<\/a> (SLA) department published a new paper in the <em><a href=\"https:\/\/www.sciencedirect.com\/journal\/applied-surface-science\">Applied Surface Science<\/a> <\/em>journal.<\/p>\n<p>The study, titled <strong><em>Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon, <\/em><\/strong>was authored by <strong>Alexander V. Bulgakov<\/strong> (Nanomaterials team leader), <strong>Juraj Sl\u00e1dek<\/strong> (post-doc), <strong>Jan Hrabovsk\u00fd<\/strong> (Ph.D. Student, Pulsed laser deposition), <strong>Inam Mirza<\/strong> (team leader of Pulsed laser deposition), <strong>Wladimir Marine<\/strong> (senior researcher: Nanomaterials) a <strong>Nadezhda M. Bulgakova<\/strong> (head of Scientific Laser Applications).<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.hilase.cz\/wp-content\/uploads\/Dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon.png\" alt=\"\" \/><\/p>\n<p>An experimental and theoretical study of laser-induced damage and ablation of silicon by two individual femtosecond pulses of different wavelengths, 1030 and 515 nm, is performed to address the physical mechanisms of dual-wavelength ablation and reveal possibilities for increasing the ablation efficiency. The produced craters and damaged areas are analyzed as a function of laser fluence and time separation between the pulses and are compared with monochromatic irradiation. The order of pulses is demonstrated to be essential in bi-color ablation with higher material removal rates when a shorter-wavelength pulse arrives first at the surface. Simulations based on the two-temperature model show that the visible pulse is profitable for the generation of the electron-hole plasma while the delayed IR pulse is efficiently absorbed in the plasma enhancing energy coupling to the target. At long delays of 30\u2013100 ps, the dual-wavelength ablation is found to be particularly strong with formation of deep smooth craters. This is explained by the expansion of a hot liquid layer produced by the first pulse with a drastic decrease in the surface reflectivity at this timescale. The results provide insight into the processes of dual-wavelength laser ablation offering a better control of the energy deposition into material.<\/p>\n<p><strong><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0169433223023061\">READ THE FULL ARTICLE<\/a><\/strong><\/p>\n","oddelovace":"none"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon - HiLASE<\/title>\n<meta name=\"description\" content=\"A team of HiLASE Centre researchers from the Scientific Laser Applications (SLA) department published a new paper in the Applied Surface Science journal.\" \/>\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\/dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon\" \/>\n<meta property=\"og:description\" content=\"A team of HiLASE Centre researchers from the Scientific Laser Applications (SLA) department published a new paper in the Applied Surface Science journal.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.hilase.cz\/en\/dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon\/\" \/>\n<meta property=\"og:site_name\" content=\"HiLASE\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-07T19:00:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-20T07:08:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.hilase.cz\/wp-content\/uploads\/Dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Lucka \u0160t\u011bp\u00e1nkov\u00e1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon\" \/>\n<meta name=\"twitter:description\" content=\"A team of HiLASE Centre researchers from the Scientific Laser Applications (SLA) department published a new paper in the Applied Surface Science journal.\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.hilase.cz\/wp-content\/uploads\/Dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon.png\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Lucka \u0160t\u011bp\u00e1nkov\u00e1\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.hilase.cz\/en\/dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon\/\",\"url\":\"https:\/\/www.hilase.cz\/en\/dual-wavelength-femtosecond-laser-induced-single-shot-damage-and-ablation-of-silicon\/\",\"name\":\"Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon - 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