title: Effects of front-surface target structures on properties of relativistic laser-plasma electrons.
abstract: We report the results of a study of the role of prescribed geometrical structures on the front of a target in determining the energy and spatial distribution of relativistic laser-plasma electrons. Our three-dimensional particle-in-cell simulation studies apply to short-pulse, high-intensity laser pulses, and indicate that a judicious choice of target front-surface geometry provides the realistic possibility of greatly enhancing the yield of high-energy electrons while simultaneously confining the emission to narrow (<5°) angular cones.
authors.affiliation: Physics Department, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: S
authors.initials: S
authors.lastname: Jiang
authors.affiliation: Physics Department, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: A G
authors.initials: AG
authors.lastname: Krygier
authors.affiliation: Physics Department, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: D W
authors.initials: DW
authors.lastname: Schumacher
authors.affiliation: Physics Department, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: K U
authors.initials: KU
authors.lastname: Akli
authors.affiliation: Physics Department, The Ohio State University, Columbus, Ohio 43210, USA.
authors.forename: R R
authors.initials: RR
authors.lastname: Freeman
mesh_terms: D003198:Computer Simulation; D004579:Electron Transport; D004583:Electrons; D007834:Lasers; D008956:Models, Chemical; D058626:Plasma Gases / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D013499:Surface Properties / Q000528:radiation effects
chemical_list: D058626:Plasma Gases