High-speed Rayleigh–Raman measurements with subframe burst gating | Zendy

Yedhu Krishna | Zendy; Hao Tang | Zendy; Ayman ElBaz | Zendy; Gaetano Magnotti | Zendy

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High-speed Rayleigh–Raman measurements with subframe burst gating

Author(s) -

Yedhu Krishna,

Hao Tang,

Ayman ElBaz,

Gaetano Magnotti

Publication year - 2019

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.44.004091

Subject(s) - burst mode (computing) , optics , subframe , materials science , raman spectroscopy , raman scattering , rayleigh scattering , laser , mole fraction , methane , detector , noise (video) , physics , chemistry , telecommunications , computer science , electrical engineering , thermodynamics , engineering , telecommunications link , organic chemistry , artificial intelligence , image (mathematics)

A 10-kHz one-dimensional Rayleigh-CH 4 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.

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