Chiral Surface Plasmon Polaritons on Metallic Nanowires

Abstract

Chiral surface plasmon polaritons (SPPs) can be generated by linearly polarized light incident at the end of a nanowire, exciting a coherent superposition of three specific nanowire waveguide modes. Images of chiral SPPs on individual nanowires obtained from quantum dot fluorescence excited by the SPP evanescent field reveal the chirality predicted in our theoretical model. The handedness and spatial extent of the helical periods of the chiral SPPs depend on the input polarization angle and nanowire diameter as well as the dielectric environment. Chirality is preserved in the free-space output wave, making a metallic nanowire a broad bandwidth subwavelength source of circular polarized photons.

4 figures

References in corpus (3)

• On-command enhancement of single molecule fluorescence using a gold nanoparticle as an optical nano-antenna
• Observation of the spin-based plasmonic effect in nanoscale structures
• Strong coupling of single emitters to surface plasmons

Cited by in corpus (12)

• Giant circular dichroism of a molecule in a region of strong plasmon resonances between two neighboring gold nanocrystals
• Generating far-field orbital angular momenta from near-field optical chirality
• Plasmonic mode converter for controlling optical impedance and nanoscale light-matter interaction
• Angular momentum radiation from current-carrying molecular junctions
• Spin-polarized Voltages on a 2D Self-assembled Plasmonic Crystal
• Propagation mechanism of surface-enhanced resonant Raman scattering light through one-dimensional plasmonic hotspot along silver nanowire dimer junction
• Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption
• Topologically Induced Optical Activity in Graphene-Based Meta-Structures
• Quantization of electromagnetic modes and angular momentum on plasmonic nanowires
• Real-time surface plasmon polariton propagation in silver nanowires
• Ultrabroad resonance of localized plasmon on a nanoparticle coupled with surface plasmon on a nanowire enabling two-photon excited emission via continuous-wave laser
• Conservation law for angular momentum based on optical field derivatives: Analysis of optical spin-orbit conversion