Tailoring optical pulling force on gain coated nanoparticles with nonlocal effective medium theory

Tailoring Core-Shell Polymer-Coated Nanoparticles as Block Copolymer Surfactants

The effect of core-shell polymer-coated nanoparticles on block copolymer morphology is investigated systematically by controlling particle positioning within a block copolymer template. Our approach of varying the areal chain density (Σ) of short thiol terminated polystyrene (PS-SH) brushes on the particles where the molecular weight (Mn) of the PS ligands (2.5 kg/mol) is used to control the fr...

Quantum optical effective-medium theory for loss-compensated metamaterials.

A central aim in metamaterial research is to engineer subwavelength unit cells that give rise to desired effective-medium properties and parameters, such as a negative refractive index. Ideally one can disregard the details of the unit cell and employ the effective description instead. A popular strategy to compensate for the inevitable losses in metallic components of metamaterials is to add o...

Mode conversion enables optical pulling force in photonic crystal waveguides

Nonlocal effective medium analysis in symmetric metal-dielectric multilayer metamaterials

The optical nonlocality in symmetric metal-dielectric multilayer metamaterials is theoretically and experimentally investigated with respect to transverse-magnetic-polarized incident light. A nonlocal effective medium theory is derived from the transfer-matrix method to determine the nonlocal effective permittivity depending on both the frequency and wave vector in a symmetric metal-dielectric ...

Nonlocal effective medium approximation for metallic nanorod metamaterials

Tao Geng,1,2 Songlin Zhuang,2 Jie Gao,1 and Xiaodong Yang1,* 1Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA 2Engineering Research Center of Optical Instrument and Systems, Ministry of Education, Shanghai Key Lab of Modern Optical Systems, University of Shanghai for Science and Technology, Shanghai 200093, China (Rec...