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Strong spin-orbit interaction can be induced by light-bending metasurfaces. We show that the photon spin momentum can be directly transferred to collective motion of electrons on a conductive metasurface with this interaction.
We introduce a new method to localize lightwaves. We show how the interaction of a gain medium with a planar deep-UV plasmonic heterostructure, at its zero-vg point, strongly localizes light. A quantum-coherent drive provides a means to control the localization and dramatically improve the dynamics.
We experimentally demonstrate a three-dimensional ultra-thin metasurface carpet cloak can cover on an arbitrary-shaped object and make it undetectable by the visible light owing to the phase control capability of the metasurface.
Self-assembly approaches to construct plasmonic materials often result in high-symmetry structures within a thermodynamic limit. Here we demonstrate a novel selective self-assembly route for synthesis of a new class of nanoplasmonic structures with symmetry-breaking.
We have experimentally demonstrated an active plasmon sensor with sub-p.p.b. level explosive molecules detection. Loss compensation by gain in surface plasmon cavity enhanced the sensitivity significantly.
We theoretically propose a novel scheme for sub-diffraction imaging based on a process of adiabatic decompression of the local wavelength of a surface plasmon polariton supported by two adjoining curved metal surfaces.
We theoretically demonstrate, an order of magnitude enhancement in propagation length of SPPs (visible wavelength) along a metal-phaseonium interface via quantum coherence. Such coherence effects hold promise for quantum control in the field of nanophotonics.
We demonstrate that the optical force exerted on a suspended dielectric waveguide coupled to a metallic substrate is greatly enhanced compared to dielectric substrate, due to subwavelength optical energy confinement in the hybrid plasmonic mode.
We demonstrated the first directionally emitting deep sub-wavelength plasmon laser and circuit. The plasmon laser circuit naturally integrates photonic and electronic functionality allowing both efficient electrical modulation and wavelength multiplexing.
We show how surface plasmon polaritons can be routed along arbitrary trajectories by forming nondiffracting Airy beams on metal surfaces. The dynamic computer-based control over such plasmonic Airy beams is successfully demonstrated in our experiment.
We demonstrate Purcell enhancement of spontaneous decay rate up to 60 times and luminescence intensity up to five-fold from dye molecules strongly coupled to a non-resonant deep-subwavelength metal-dielectric hybrid plasmon waveguide.
We show that a nano-scale plasmonic motor can generate a large and controllable torque. As demonstration, we rotate a dielectric particle which is 4,000 times larger in volume than the motor.
Scattering from metal/SiO2/metal layered nanodisks (nanoburgers) is studied. A comprehensive characterization of the plasmon resonances are achieved by angle-and polarization-resolved measurement of scattering spectra. DDA simulations are done to understand the results.
The propagation and amplification of surface plasmon polaritons (SPPs) is studied at the interfaces between metals and active media. A permittivity renormalization technique is proposed and developed to obtain an explicit analytic expression for the critical gain required to achieve infinite SPP propagation length. A specific multiple quantum-well (MQW) system is identified as a prospective medium...
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