title: Complex three-dimensional polymer-metal core-shell structures towards emission control.
abstract: We report the fabrication of three-dimensional periodic metal nickel nanostructures achieved by the combination of femtosecond laser-induced two-photon polymerization and electroless plating technology. We can control the deposition speed of 10 nm per second by adjusting the reaction time. The thermal stability is good under 500 °C for the three-dimensional graphite-lattice polymer structure with 200 nm nickel film. Optical reflectivity and thermal emission measurements under 550 °C showed that the fabricated metallic structure was thermally excited and emitted light at λ = 4.50, 4.95 μm. The emission peak wavelengths agree with the absorption peaks. These data demonstrate that creating metallic photonic crystals by incorporation of metals to laser-fabricated templates is a simple and cost-efficient method. The emitters can work at such low temperatures, which is more important for realistic operation in applications.
authors.affiliation: Information Countermeasure Department, Aviation University of Air Force, Changchun 130022, People's Republic of China.
authors.forename: Lin
authors.initials: L
authors.lastname: Ren
authors.forename: De-Gong
authors.initials: DG
authors.lastname: Wang
authors.forename: Li-Gang
authors.initials: LG
authors.lastname: Niu
authors.forename: Bin-Bin
authors.initials: BB
authors.lastname: Xu
authors.forename: Jun-Feng
authors.initials: JF
authors.lastname: Song
authors.forename: Qi-Dai
authors.initials: QD
authors.lastname: Chen
authors.forename: Hong-Bo
authors.initials: HB
authors.lastname: Sun