title: Generalized multi-Gaussian correlated Schell-model beam: from theory to experiment.
abstract: A new kind of partially coherent beam with non-conventional correlation function named generalized multi-Gaussian correlated Schell-model (GMGCSM) beam is proposed. The GMGCSM beam of the first or second kind is capable of producing dark hollow or flat-topped beam profile in the focal plane (or in the far field). Furthermore, we carry out experimental generation of a GMGCSM beam of the first or second kind, and measure its focused intensity. Our experimental results verify theoretical predictions. The GMGCSM beam will be useful for free-space optical communications, material thermal processing, particle or atom trapping.
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Chunhao
authors.initials: C
authors.lastname: Liang
authors.forename: Yangsheng
authors.initials: Y
authors.lastname: Yuan
authors.forename: Yangjian
authors.initials: Y
authors.lastname: Cai
mesh_terms: D003198:Computer Simulation; D008027:Light; D015233:Models, Statistical; D008962:Models, Theoretical; D016011:Normal Distribution; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation