In-depth Stark broadening study of neutral oxygen 777 nm triplet

被引：0

作者：

Gosse, L. ^{[1
]}

Favre, A. ^{[1
]}

Bultel, A. ^{[1
]}

Morel, V. ^{[1
]}

Djurovic, S.

Simic, N.

Gavanski, L. ^{[2
]}

机构：

[1] Univ Rouen Normandie, CORIA, UMR 6614, F-76801 St Etienne, France

[2] Univ Novi Sad, Fac Sci, Dept Phys, Novi Sad 21000, Serbia

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2025年 / 230卷

关键词：

Oxygen triplet; Stark parameters; Stabilized arc; Laser-induced plasma; INDUCED BREAKDOWN SPECTROSCOPY; SELF-ABSORPTION; EMISSION-LINES; LASER; PLASMA;

D O I：

10.1016/j.sab.2025.107222

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this study, the Stark broadening of the visible triplet of neutral oxygen was caracterised. To cover a wide range of electron densities, the study relies on two joint experimental campaigns: one on laser-induced plasma and the other on wall-stabilized arc. Measuring the Stark impact factor associated with the triplet requires, in addition to an accurate measurement of electron density and temperature, isolating the Lorentzian Stark contribution by deconvoluting the experimental spectral profile. This measurement will allow, for any observation where the triplet is unresolved and/or suffers from line overlapping, to estimate the electron density or perform elemental quantification from the total broadening of the O 777 nm triplet.

引用

页数：9

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