Dual-comb spectroscopy in the deep ultraviolet

被引：13

作者：

McCauley, John J. ^{[1
]}

Phillips, Mark C. ^{[1
]}

Weeks, Reagan R. D. ^{[1
]}

Zhang, Yu ^{[1
,2
]}

Harilal, Sivanandan S. ^{[3
]}

Jones, R. Jason ^{[1
]}

机构：

[1] Univ Arizona, James C Wyant Coll Opt Sci, Tucson, AZ 85721 USA

[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[3] Pacific Northwest Natl Lab, Richland, WA 99354 USA

来源：

OPTICA | 2024年 / 11卷 / 04期

关键词：

FREQUENCY COMB;

D O I：

10.1364/OPTICA.516851

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This Letter reports dual-frequency-comb spectroscopy in the deep ultraviolet used to characterize transient laser -produced plasmas. Dual-comb spectroscopy at these wavelengths enables access to a large number of strong electronic transitions in neutral and ionized atoms and molecules. This broadband dual-frequency-comb system at 265 nm measures multiple transitions in neutral and singly ionized iron atoms in a laser-produced plasma. Analysis of absorption spectra yields time -resolved ion and neutral column densities, excitation temperatures, and electron densities, which are measured down to 10(14) cm(- 3 )levels. The results provide insights into low -temperature plasma properties.

引用

页码：460 / 463

页数：4

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