Picosecond time-resolved four-wave mixing experiments in sodium-seeded flames | Zendy

John T. Fourkas | Zendy; Timothy R. Brewer | Zendy; Hackjin Kim | Zendy; M. D. Fayer | Zendy

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Picosecond time-resolved four-wave mixing experiments in sodium-seeded flames

Author(s) -

John T. Fourkas,

Timothy R. Brewer,

Hackjin Kim,

M. D. Fayer

Publication year - 1991

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.16.000177

Subject(s) - picosecond , materials science , excited state , atomic physics , optics , four wave mixing , population , polarization (electrochemistry) , mixing (physics) , coherence (philosophical gambling strategy) , physics , nonlinear optics , chemistry , laser , demography , quantum mechanics , sociology

Picosecond four-wave mixing experiments have been used to study collisions in a Na-seeded, premixed, methane-air flame. Population gratings are used to measure Na excited-state quenching collision rates, while polarization gratings are used to measure Na ground-state hyperfine coherence randomizing collision rates and overall Na diffusion rates, even though these processes are slower than the excited-state quenching rate.

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