Spin–Orbit Controlled Excitation of Quantum Emitters in Hybrid Plasmonic Nanocircuits

Abstract

Integrated photonic and hybrid plasmonic configurations consisting of waveguide nanocircuits coupled with quantum emitters (QEs) have attracted considerable attention due to potential applications in emerging quantum information technologies, such as communication, computation, imaging and sensing. [1-8] Different kinds of plasmonic waveguides, including metal wedges, V-grooves, single and parallel nanowires, have been considered for QE coupling to strongly confined plasmon modes in the form of propagating surface plasmon polaritons (SPPs). [9-18] Even though these waveguides are able of supporting extremely strongly confined SPP modes, their suitability for deterministic, accurate and practical integration with QEs is rather challenging, if possible at all, due to their complicated fabrication involving

Photoluminescence control by hyperbolic metamaterials and metasurfaces: a review

“…Moreover, 2D materials with hyperbolic dispersion for certain mid-infrared wavelengths are also shown to support directional high-k surface waves, including patterned hexagonal boron nitride (h-BN) 167 , α-molybdenum trioxide (α-MoO 3 ) 168,169 . Moreover, recently numerous natural hyperbolic materials have been proposed 35−37 and discovered 170,171 . Especially, some of these natural materials exhibit hyperbolic dispersion from ultraviolet to near-infrared wavelengths where demand for PL control is enormous.…”

Plasmon–Exciton Interactions: Spontaneous Emission and Strong Coupling

“…[261] For branched dielectric-loaded plasmonic waveguides with one nanodiamond containing multiple NV centers on each branch, the nanodiamonds can be selectively excited by using circularly polarized laser light with different handedness. [262] V-groove waveguides offer strong confinement of electromagnetic field near the groove bottom, which is easily accessible by solid QEs. As shown in Figure 12d, a NV center in nanodiamond was positioned inside the Au V-groove waveguide with an AFM tip.…”

Probing and Imaging Photonic Spin‐Orbit Interactions in Nanostructures

“…Another example is quantum optics, where efficient sorting of photon spins can be used to read out electron or exciton spins of quantum emitters through photon‐emitter coupling. [ 91,92,177 ] This is important in the development of chiral quantum optics and is of great importance for future quantum networks. Precise characterizations and determinations of physical quantities such as the wavevectors or the t‐SAM can help researchers understand the most fundamental laws.…”

“…The QSHE of light also provides an effective and reliable way to realize chiral coupling of evanescent waves with high extinction ratio, [ 43–45,86 ] which can be implemented to read out spin states of quantum emitters. [ 87–92 ] Moreover, such effects can be used to map Stokes parameters, which provide on‐chip solutions for polarization measurement. [ 93–96 ] The SVC offers a broadband solution for arbitrary OAM generation, making it possible to create integrated OV emitters.…”