Emission intensity modulation of radio-frequency helium glow-discharge emission source by laser ablation

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5 Citations (Scopus)

Abstract

A novel emission excitation source comprising a high repetition rate diode-pumped Q-switched Nd:YAG laser and a Grimm-style glow-discharge lamp is described. Laser-ablated atoms are introduced into the He glow discharge plasma, which then give emission signals. By using phase-sensitive detection with a lock-in amplifier, the emission signal modulated by the pulsed laser can be detected selectively. It is possible to estimate only the emission intensity of sample atoms ablated by laser irradiation with little interference from the other species in the plasma.

Original languageEnglish
Pages (from-to)813-814
Number of pages2
Journalanalytical sciences
Volume19
Issue number6
DOIs
Publication statusPublished - 2003 Jun 1

ASJC Scopus subject areas

  • Analytical Chemistry

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