Developments of the amplified stimulated emission technique for spatially resolved species detection in flames

Nikola Georgiev*, Kaj Nyholm, Rolf Fritzon, Marcus Aldén

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Abstract

It is demonstrated that the amplified stimulated emission technique can be applied for spatially resolved detection of flame species requiring a two-photon excitation process. The approach utilizes two laser beams of different wavelengths produced by a dual wavelength package in the dye laser. By wavelength separation through the use of two different doubling crystals fulfilling the phase-matching condition for only one beam at a time, followed by crossing the beams in the flame, a substantial increase in spatial resolution is achieved. The technique is demonstrated on ammonia in a jet and on carbon atoms in a welding torch flame.

Original languageEnglish
Pages (from-to)71-76
JournalOptics Communications
Volume108
Issue number1-3
DOIs
Publication statusPublished - 15 May 1994
MoE publication typeA1 Journal article-refereed

Funding

This work was financially supported by the Swedish Research Council for Engineering Sciences (TFR) and the Swedish Board for Industrial and Technical Developments (NUTEK). KN acknowledges the Emil Aaltonen Foundation and the Oskar ~)flund Foundation for financial support.

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