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Dual‐probe polarization spectroscopy as a concept for combustion diagnostics
Author(s) -
Kiefer Johannes
Publication year - 2019
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.5577
Subject(s) - spectroscopy , polarization (electrochemistry) , combustion , doppler effect , coherent spectroscopy , raman spectroscopy , optics , chemistry , materials science , analytical chemistry (journal) , physics , coherent anti stokes raman spectroscopy , raman scattering , organic chemistry , quantum mechanics , astronomy , chromatography
Abstract Studying the line‐broadening effects of combustion intermediates in flames is the key to derive quantitative information via spectroscopic techniques. In this communication, an extension to polarization spectroscopy via employing two probe beams, one of which is copropagating whereas the other one is counterpropagating to the pump beam, is proposed. This gives rise to dual‐probe polarization spectroscopy, which enables recording a Doppler‐broadened and a Doppler‐free signal simultaneously.