Single-pulse gas thermometry at low temperatures using two-photon laser-induced fluorescence in NO–N_2 mixtures | Zendy

K. P. Gross | Zendy; Richard McKenzie | Zendy

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Single-pulse gas thermometry at low temperatures using two-photon laser-induced fluorescence in NO–N_2 mixtures

Author(s) -

K. P. Gross,

Richard McKenzie

Publication year - 1983

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.8.000368

Subject(s) - optics , materials science , laser induced fluorescence , photon counting , fluorescence , laser , photon , pulse (music) , excitation , atomic physics , supersonic speed , physics , quantum mechanics , detector , thermodynamics

A technique suitable for measuring fluctuating temperatures in supersonic turbulent flows of N(2) seeded with NO has been demonstrated in a nonflowing cell. The method relies on the two-photon excitation of two selected rovibronic transitions in the NO gamma(A(2)Sigma+,'=0?X(2)II,''=0) band. Measurements between 155 and 295 K in N(2) mixtures containing 300 parts in 10(6) NO were obtained with single-pulse errors below 4% rms.

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