Investigation of the laser-induced damage in dispersive coatings

被引：8

作者：

Angelov, Ivan B. ^{[1
]}

von Conta, Aaron ^{[2
,3
]}

Trushin, Sergei A. ^{[1
]}

Major, Zsuzsanna ^{[1
,2
]}

Karsch, Stefan ^{[1
,2
]}

Krausz, Ferenc ^{[1
,2
]}

Pervak, Vladimir ^{[2
]}

机构：

[1] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany

[2] Univ Munich, D-85748 Garching, Germany

[3] Hochschule Munchen, D-80335 Munich, Germany

来源：

LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 2011 | 2011年 / 8190卷

关键词：

LIDT; thin-films; dispersive coatings; oxide mixtures; TRANSPARENT MATERIALS; DIELECTRIC FILMS; MIRRORS; THRESHOLD; PULSES;

D O I：

10.1117/12.899116

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Different dispersive coatings were tested in terms of laser-induced damage threshold by using a Ti:Sapphire laser yielding 1 mJ, 30 fs pulses at 500 Hz repetition rate at 790 nm central wavelength. The beam was focused down to 140 mu m. Single layer coatings of Au, Ag, Nb2O5, SiO2, Ta2O5 and mixtures of Ta2O5 and silica were examined as well as different dispersive coatings. We observed a direct dependence of the damage threshold on the band gap of the materials used to produce the different samples. The damage threshold values for the dispersive coatings employing the same high index material lay within a range of 30% of each other.

引用

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