, Volume 3, Issue 2, pp 195-202

Particle imaging sizing: GLMT simulations

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Abstract

Defocused off-axis images of particles are computed in the framework of the generalized Lorenz-Mie theory. Two exemplifying cases are studied: interferometric sizing at large off-axis angles and imaging in near forward directions (shadow Doppler velocimetry)

Thierry Girasole: He received his Ph.D. in Physics in 1991 from the University of Rouen. He worked in the thermal instabilities in multiphase flows during his Ph.D. After the Ph.D. he worked as an engineer into the UMR 6614 CNRS in the area of light scattering topics. His research interests generalized Lorenz Mie theories and their applications in laser-based techniques as phase Doppler analyser or imagery, as well as 4 Flux and Monte Carlo methods applied to multiple scattering.
Kuan Fang Ren: He obtained a MSc degree in radiophysics in 1988 from Northwest Telecommunication Engineering Institute, China, and a Doctorat ès Sciences in 1995 from the University of Rouen. Since 1998, he is a Maître de Conférence (Assistant professor) at Rouen University. His research interests include scattering of finite laser beams by homogeneous or inhomogeneous particles and its applications in particle sizing techniques such as particle imaging, rainbow, phase Doppler anemometry, turbidimetry, etc.
Denis Lebrun: He received his PhD degree in optoelectronics from the University of Rouen University, France in 1992. Since 1993, he is a Maître de Conférence (Assistant professor) at Rouen University. His current research interests include image and signal processing, digital and optical wavelet transforms, liquid crystal spatial light modulators, diffraction phenomena and holography.
Gérard Gouesbet: He recieved his third cycle thesis in 1973 and his state thesis in 1977. He has been a researcher of the French National Center of Scientific Research from 1975 to 1983 and since then he is a professor at the National Institute of Applied Sciences of Rouen where he is heading a laboratory of about 35 persons (the LESP). He is honorary professor of Xi-Dian University, of the North-Eastern Liaoming University, in China, and a member of the New York Academy of Sciences. His research interests included the modelling of two-phase flows, light scattering theories and applications, instabilities and non linear dynamics.
Gérard Gréhan: He received his third cycle thesis in 1980 and his state thesis in 1985 both from University of Rouen. He is a researcher of the French National Center of Scientific Research (CNRS) since 1980 where he has actually a position of Directeur de Recherche. He is honorary professor of Xi-Dian University, China. His research interest meanly interaction between laser beams and particle, including theoretical, numerical as well as experimental approaches. A particular interest is devoted to optical metrology (imaging, optical tweezers, PDA, ...).