title: Colloidal Gold Nanocups with Orientation-Dependent Plasmonic Properties.
abstract: Colloidal gold nanocups are synthesized through single-vertex-initiated gold deposition on PbS nanooctahedrons and subsequent selective dissolution of the PbS component. They possess strong magnetic plasmon resonance and exhibit remarkable orientation-dependent plasmonic properties when deposited on flat substrates. They can also effectively couple s-polarized light into the interfacial region between the nanocup and substrate.
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR China.|School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China.
authors.forename: Ruibin
authors.initials: R
authors.lastname: Jiang
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR China.
authors.forename: Feng
authors.initials: F
authors.lastname: Qin
authors.affiliation: Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore.
authors.forename: Yejing
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore.
authors.forename: Xing Yi
authors.initials: XY
authors.lastname: Ling
authors.affiliation: Testing & Analysis Center, Soochow University, Suzhou, 215123, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Guo
authors.affiliation: Testing & Analysis Center, Soochow University, Suzhou, 215123, China.
authors.forename: Minghua
authors.initials: M
authors.lastname: Tang
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
authors.forename: Si
authors.initials: S
authors.lastname: Cheng
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR China.
authors.forename: Jianfang
authors.initials: J
authors.lastname: Wang
keywords: PbS nanocrystals; gold nanocups; heteronanostructures; plasmon resonance; surface-enhanced Raman scattering