High-speed Rayleigh–Raman measurements with subframe burst gating

Yedhu Krishna, Hao-Ling Tang, Ayman M. Elbaz, Gaetano Magnotti

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A 10-kHz one-dimensional Rayleigh–CH4 Raman instrument capable of achieving highly precise measurement of temperature and methane mole fraction is demonstrated. The system uses a pulse-burst laser as the light source and back-illuminated electron-multiplied CCD cameras as the detectors. The cameras are operated in the subframe burst gating mode, to combine a high sampling rate, low noise, and a slow readout. The improved precision of this configuration is demonstrated by measuring temperature and methane mole fractions in ambient temperature gas mixtures and in a non-premixed inverse diffusion flame.
Original languageEnglish (US)
Pages (from-to)4091
JournalOptics Letters
Volume44
Issue number17
DOIs
StatePublished - Aug 21 2019

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