Enhanced Directional Coupling of Light with a Whispering Gallery Microcavity
arXiv:1910.12524 · doi:10.1021/acsphotonics.9b01611
Abstract
Directional coupling of light in nanophotonic circuits has recently attracted increasing interest, with numerous experimental realizations based on broken rotational or mirror symmetries of the light-matter system. The most prominent underlying effect is the spin-orbit interaction of light in subwavelength structures. Unfortunately, coupling of light to such structures is, in general, very inefficient. In this work, we experimentally demonstrate an order of magnitude enhancement of the directional coupling between two nanowaveguides by means of a whispering gallery microcavity. We also show that both transversmagnetic and transverse electric modes can be used for the enhancement.
arXiv comment3 figures
References in corpus (17)
- Spin-orbit interactions of light
- Chiral Quantum Optics
- On-chip Single Nanoparticle Detection and Sizing by Mode Splitting in an Ultra-high-Q Microresonator
- Chiral nanophotonic waveguide interface based on spin-orbit coupling of light
- Deterministic photon-emitter coupling in chiral photonic circuits
- Optical microsphere resonators: optimal coupling to high-Q whispering gallery modes
- All-Optical Routing of Single Photons by a One-Atom Switch Controlled by a Single Photon
- A planar dielectric antenna for directional single-photon emission and near-unity collection efficiency
- Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer
- Strong coupling between single atoms and non-transversal photons
- Spin-orbit interaction of light induced by transverse spin angular momentum engineering
- Interfacing a quantum dot spin with a photonic circuit
- Optical Micro- and Nanofiber Pulling Rig
- Single Atoms on an Optical Nanofiber
- Cavity-enhanced channeling of emission from an atom into a nanofiber
- Complete polarization control for a nanofiber waveguide using directional coupling
- Excitation of whispering gallery modes with a "point-and-play", fiber-based, optical nano-antenna