Single- and multi-pulse femtosecond laser ablation of optical filter materials
- Ablation experiments employing Ti:sapphire laser pulses with durations from 30 to 340 fs (centre wavelength 800 nm, repetition rate 1 kHz) were performed in air. Absorbing filters (Schott BG18 and BG36) served as targets. The direct focusing technique was used under single- and multi-pulse irradiation conditions. Ablation threshold fluences were determined from a semi-logarithmic plot of the ablation crater diameter versus laser fluence. The threshold fluence decreases for a shorter pulse duration and an increasing number of pulses. The multi-pulse ablation threshold fluences are similar to those of undoped glass material (~1 J cm-2). That means that the multi-pulse ablation threshold is independent on the doping level of the filters. For more than 100 pulses per spot and all pulse durations applied, the threshold fluence is practically constant. This leads to technically relevant ablation threshold values.
Autor*innen: | Jörg KrügerORCiD, Matthias Lenzner, Sven Martin, M. Lenner, Ch. Spielmann, A. Fiedler, Wolfgang Kautek |
---|---|
Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Applied surface science |
Jahr der Erstveröffentlichung: | 2003 |
Verlag: | North-Holland |
Verlagsort: | Amsterdam |
Jahrgang/Band: | 208-209 |
Erste Seite: | 233 |
Letzte Seite: | 237 |
Freie Schlagwörter: | Damage; Femtosecond laser ablation; Filter; Incubation; Laser safety; Threshold |
DOI: | 10.1016/S0169-4332(02)01389-2 |
ISSN: | 0169-4332 |
ISSN: | 1873-5584 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Bibliotheksstandort: | ZA 83 |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 15.12.2005 |