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- G Grehan, B Maheu, G Gouesbet
- Applied optics
- 1986

- K F Ren, G Gouesbet, G Gréhan
- Applied optics
- 1998

The generalized Lorenz-Mie theory deals with the interaction between spheres and arbitrarily shaped illuminating beams. An efficient use of the theory requires efficient evaluation of the so-called beam-shape coefficients involved in the description of the illuminating beam. A less time-consuming method of evaluation relies on the localized approximation.… (More)

- G Grehan, G Gouesbet
- Applied optics
- 1979

New progress in Mie theory calculations is reported. A computer program is available using the Lentz algorithm allowing more extensive calculations, namely, studying of bigger diameters and more important absorption coefficients. Emphasis on particle sizing is considered.

- V Norris, S Alexandre, +22 authors P Wiggins
- Biochimie
- 1999

A myriad different constituents or elements (genes, proteins, lipids, ions, small molecules etc.) participate in numerous physico-chemical processes to create bacteria that can adapt to their environments to survive, grow and, via the cell cycle, reproduce. We explore the possibility that it is too difficult to explain cell cycle progression in terms of… (More)

- Z S Wu, L X Guo, K F Ren, G Gouesbet, G Gréhan
- Applied optics
- 1997

An efficient numerical procedure for computing the scattering coefficients of a multilayered sphere is discussed. The stability of the numerical scheme allows us to extend the feasible range of computations, both in size parameter and in number of layers for a given size, by several orders of magnitude with respect to previously published algorithms.… (More)

- G Gouesbet, J A Lock, G Gréhan
- Applied optics
- 1995

In the framework of generalized Lorenz-Mie theory, laser beams are described by sets of beam-shape coefficients. The modified localized approximation to evaluate these coefficients for a focused Gaussian beam is presented. A new description of Gaussian beams, called standard beams, is introduced. A comparison is made between the values of the beam-shape… (More)

- K F Ren, G Gréhan, G Gouesbet
- Applied optics
- 1996

Radiation pressure exerted on a spherical particle by one extremely focused Gaussian beam is investigated by the use of generalized Lorenz-Mie theory (GLMT). Particular attention is devoted to reverse radiation pressure. GLMT predictions for different descriptions of the incident beam are compared with electrostriction predictions when the particle size is… (More)

The development of initial disturbances is relevant to the understanding of atomization processes in which droplets are generated by the breakup of a liquid jet. We theoretically and experimentally demonstrate that such disturbances can be characterized by rainbow sizing. More specifically, for a liquid jet with a diameter of 600 mum, disturbances in the… (More)

- Gérard Gouesbet, James A Lock
- Applied optics
- 2013

The expression "generalized Lorenz-Mie theories" generically denotes a class of light-scattering theories describing the interaction between an illuminating electromagnetic arbitrary-shaped beam and a particle possessing a high degree of symmetry. This allows one to use the method of separation of variables in which the illuminating beam is expressed as an… (More)

- G Gouesbet, G Grehan, B Maheu
- Applied optics
- 1988

Three different methods can be used to numerically compute the g(n) coefficients in the generalized Lorenz-Mie theory. Two of them are rigorous and involve (i) numerical evaluation of quadratures and (ii) numerical evaluation of finite series. The third way relies on the so-called localized interpretation that we discussed in previous papers. These three… (More)