High-contrast, high-brightness ultraviolet laser system

被引：5

作者：

Gilicze, Barnabas ^{[1
,2
]}

Homik, Zsolt ^{[1
]}

Szatmari, Sandor ^{[1
,2
]}

机构：

[1] Univ Szeged, Dept Expt Phys, Dom Ter 9, H-6720 Szeged, Hungary

[2] Univ Szeged, Interdisciplinary Excellence Ctr, Dept Photon & Laser Res, H-6720 Szeged, Hungary

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 12期

基金：

匈牙利科学研究基金会;

关键词：

PETAWATT LASER; PULSES; AMPLIFIER; IMPROVEMENT; SCHEME;

D O I：

10.1364/OE.27.017377

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, improved operation of a high-contrast, high-brightness ultraviolet laser system is described. The laser system is based on a conventional short-pulse dye/excimer design, modified to contain 3 KrF excimer short-pulse amplifiers and the recently developed nonlinear Fourier-filtering stage for contrast improvement. The final amplifier accepts a beam size of similar to 4x4 cm(2), producing 100 mJ energy of short-pulses using a two-beam interferometric multiplexing setup. Temporal measurements of the output showed positively chirped pulses of similar to 700 fs duration, beside a focusability of similar to 2 times the diffraction limit. Amplified spontaneous emission-as the only source of the temporal background- results in a focused intensity contrast of >10(12) in the entire temporal window. These unique parameters give access to laser-matter interaction experiments above 10(19) W/cm(2 )intensity at 248 nm. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：17377 / 17386

页数：10

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