Gerard Grehan Gerard Gouesbet

Gérard Grehan (also known as Gérard Gouesbet) was a French physicist and researcher specializing in light scattering, Mie theories, and optical particle sizing, affiliated with CNRS UMR 6614/LABEX EMC3 and the University of Rouen.[1][6][7] He co-authored influential works such as 'Optical Particle Sizing: Theory and Practice' and contributed to generalized Lorenz-Mie theory for beam shape coefficients and particle characterization.[5][6][7] Grehan was also recognized as a philosopher, collaborating on publications like 'Violences des idoles'.[2]