Laser diagnostics of molecular states in nonequilibrium gas flows

Achasov, O. V.; Фомин, Н. А.; Labuda, S. A.; Ragozin, D. S.; Soloukhin, R. I.

doi:10.1007/bf00265100

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…It is also difficult to obtain data on resonance absorption coefficients of laser radiation in different probing directions. In this case, the possibility arises to determine a set of local parameters such as temperature, pressure, concentration of the considered components and population of individual molecular levels (Achasov et al 1985). In a number of cases, the information may be obtained on a test object through its refractive index which is connected with the gas density by the Gladstone-Dale relation n--I = K. 0,…”

Section: Introductionmentioning

confidence: 99%

Speckle tomography of a gas flame

Blinkov¹,

Фомин²,

Rolin³

et al. 1989

Experiments in Fluids

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Abstract. The present work is concerned with an experimental setup for studying phase objects using multi-directional speckle photography. A mathematical description of light propagation in an optically inhomogeneous medium and a means of speckle tomography of refractive coefficient distributions are given. Recommendations on two-dimensional refractive coefficient and temperature distributions in a flame of a candle illuminated in four directions are made. The obtained results evidence that speckle photography may be a basis for tomographic studies of temperature fields in different cross-sections of an object. A speckle shift error is about 5% while the one in reconstructing local temperatures does not exceed 10%.

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Section: Introductionmentioning

confidence: 99%