Spot-size dependence of the ablation threshold in dielectrics for femtosecond laser pulses期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Spot-size dependence of the ablation threshold in dielectrics for femtosecond laser pulses

Authors:	S.?Martin author-information" > author-information__contact u-icon-before" > mailto:sven.martin@bam.de" title=" sven.martin@bam.de" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,A.?Hertwig,M.?Lenzner,J.?Krüger,W.?Kautek

Affiliation:	(1) Laboratorium für Dünnschichttechnologien, Bundesanstalt für Materialforschung und -prüfung, Unter den Eichen 87, 12205 Berlin, Germany

Abstract:	The multi-pulse ablation threshold of barium borosilicate glass was measured using 30-fs pulses of a high repetition rate (1 kHz) laser system. The threshold fluence was found to decrease with increasing beam radius ranging from 20 to 400 m. Two existing models are applied by considering thermal accumulation and point defects, respectively . PACS 42.62.C; 44.10.+i; 77.22.Jp; 77.84.Bw; 79.20.D

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