Features of femtosecond laser pulses interaction with laser nanoceramics

被引：0

作者：

Pestryakov, E. V. ^{[1
]}

Petrov, V. V. ^{[1
]}

Trunov, V. I. ^{[1
]}

Kirpichnikov, A. V. ^{[1
]}

Merzliakov, M. A. ^{[1
]}

Laptev, A. V. ^{[1
]}

机构：

[1] Inst Laser Phys SB RAS, Novosibirsk 630090, Russia

来源：

INTERNATIONAL CONFERENCE ON LASERS, APPLICATIONS, AND TECHNOLOGIES 2007: ADVANCED LASERS AND SYSTEMS | 2007年 / 6731卷

关键词：

laser ceramics; ytterbiurn ions; femtosecond high power laser systems;

D O I：

10.1117/12.752874

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work we have performed the experimental researches of features for the generation of supercontinuum in laser materials with identical chemical composition: Yb:YAG crystal and Yb:YAG laser nanoceramics. Dependence of width of supercontinuum spectrum in 515-1100 ran spectral range on femtosecond radiation intensity was investigated. At laser intensity similar to 1.2 center dot 10(14) W/cm(2) the short-wave wing of a spectrum for nanoceramics has greater intensity and more flat shape in comparison with crystal. Experiments were made at lens focusing of the Ti:Sapphire femtosecond laser system radiation with energy up to 0.5 mJ in explored sample that was inside of integrating optical sphere. Also we investigated the interaction of fenitosecond laser pulses and the generation of supercontinuum in Nd:Y2O3 nanoceramics. The maximum value of laser intensity in experiments was restricted by optical breakdown on target output surface, i.e. was below threshold of ablation of sample substance.

引用

页数：6

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