Sensitive, time-resolved, broadband spectroscopy of single transient processes

被引：13

作者：

Fjodorow, Peter ^{[1
]}

Baev, Ivan ^{[2
]}

Hellmig, Ortwin ^{[1
]}

Sengstock, Klaus ^{[1
]}

Baev, Valery M. ^{[1
]}

机构：

[1] Univ Hamburg, Inst Laserphys, D-22761 Hamburg, Germany

[2] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2015年 / 120卷 / 04期

关键词：

INTRACAVITY ABSORPTION-SPECTROSCOPY; LASER SPECTROSCOPY; TEMPERATURE; AMMONIA; SENSOR; VAPOR;

D O I：

10.1007/s00340-015-6181-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Intracavity absorption spectroscopy with a broadband Er3+-doped fiber laser is applied to time-resolved measurements of transient gain and absorption in electrically excited Xe and Kr plasmas. The achieved time resolution for broadband spectral recording of a single process is 25 A mu s. For pulsed-periodic processes, the time resolution is limited by the laser pulse duration, which is set here to 3 A mu s. This pulse duration also predefines the effective absorption path length, which amounts to 900 m. The presented technique can be applied to multicomponent analysis of single transient processes such as shock tube experiments, pulse detonation engines, or explosives.

引用

页码：667 / 673

页数：7

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