title: In-vacuum scattered light reduction with black cupric oxide surfaces for sensitive fluorescence detection.
abstract: We demonstrate a simple and easy method for producing low-reflectivity surfaces that are ultra-high vacuum compatible, may be baked to high temperatures, and are easily applied even on complex surface geometries. Black cupric oxide (CuO) surfaces are chemically grown in minutes on any copper surface, allowing for low-cost, rapid prototyping, and production. The reflective properties are measured to be comparable to commercially available products for creating optically black surfaces. We describe a vacuum apparatus which uses multiple blackened copper surfaces for sensitive, low-background detection of molecules using laser-induced fluorescence.
authors.affiliation: Department of Physics, Yale University, P.O. Box 208120, New Haven, Connecticut 06520, USA.
authors.forename: E B
authors.initials: EB
authors.lastname: Norrgard
authors.affiliation: Department of Physics, Yale University, P.O. Box 208120, New Haven, Connecticut 06520, USA.
authors.forename: N
authors.initials: N
authors.lastname: Sitaraman
authors.affiliation: Department of Physics, Yale University, P.O. Box 208120, New Haven, Connecticut 06520, USA.
authors.forename: J F
authors.initials: JF
authors.lastname: Barry
authors.affiliation: Department of Physics, Yale University, P.O. Box 208120, New Haven, Connecticut 06520, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: McCarron
authors.affiliation: Department of Physics, Yale University, P.O. Box 208120, New Haven, Connecticut 06520, USA.
authors.forename: M H
authors.initials: MH
authors.lastname: Steinecker
authors.affiliation: Department of Physics, Yale University, P.O. Box 208120, New Haven, Connecticut 06520, USA.
authors.forename: D
authors.initials: D
authors.lastname: DeMille