title: Measured optical constants of copper from 10 nm to 35 nm.
abstract: We use laser high-order harmonics and a polarization-ratio-reflectance technique to determine the optical constants of copper and oxidized copper in the wavelength range 10-35 nm. This measurement resolves previously conflicting data sets, where disagreement on optical constants of copper in the extreme ultraviolet most likely arises from inadvertent oxidation of samples before measurement.
authors.affiliation: Department of Physics and Astronomy, Provo, UT 84602, USA.
authors.forename: Nicole
authors.initials: N
authors.lastname: Brimhall
authors.forename: Nicholas
authors.initials: N
authors.lastname: Herrick
authors.forename: David D
authors.initials: DD
authors.lastname: Allred
authors.forename: R Steven
authors.initials: RS
authors.lastname: Turley
authors.forename: Michael
authors.initials: M
authors.lastname: Ware
authors.forename: Justin
authors.initials: J
authors.lastname: Peatross
mesh_terms: D003300:Copper / Q000737:chemistry*; D007834:Lasers; D008027:Light; D008422:Materials Testing; D012031:Refractometry; D012542:Scattering, Radiation
chemical_list: D003300:Copper