Optical-optical double resonance LIF detection of N2(A 3Σ+u) in high pressure gas discharges

被引：15

作者：

Dilecce, G ^{[1
]}

Ambrico, PF ^{[1
]}

De Benedictis, S ^{[1
]}

机构：

[1] CNR, Ist Metodol Inorgan Plasmi, Sez Terr Bari, I-70126 Bari, Italy

来源：

PLASMA SOURCES SCIENCE & TECHNOLOGY | 2005年 / 14卷 / 03期

关键词：

D O I：

10.1088/0963-0252/14/3/019

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

An optical-optical double resonance (OODR) laser induced fluorescence (LIF) for the detection of the N-2(A (3)Sigma(u)(+)) metastable is described. OODR employs the double laser excitation of A-B and B-C nitrogen transitions. Here it is proposed as a sensitive approach to detect N-2(A (3)Sigma(u)(+)) in high-pressure discharges. We have tested its sensitivity with respect to conventional single photon LIF by an excitation/detection scheme in which the two wavelengths required are generated by a provisional single laser setup. Other single laser configurations that might allow a sensitivity close to two orders of magnitude larger than that of conventional LIF are proposed. Such gain can be particularly useful for the detection of N-2(A (3)Sigma(u)(+)) in non-equilibrium, high-pressure discharges.

引用

页码：561 / 565

页数：5

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