Enhanced Directional Coupling of Light with a Whispering Gallery Microcavity
| Autor: | Jonathan M. Ward, Fuchuan Lei, Síle Nic Chormaic, Georgiy Tkachenko, Xue-Feng Jiang, Lan Yang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
business.industry Whispering gallery Nanophotonics FOS: Physical sciences Physics::Optics 02 engineering and technology Spin–orbit interaction Purcell effect 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Directional coupling 0103 physical sciences Optoelectronics Electrical and Electronic Engineering 0210 nano-technology business Optics (physics.optics) Physics - Optics Biotechnology Electronic circuit |
| Zdroj: | ACS Photonics. 7:361-365 |
| ISSN: | 2330-4022 |
| Popis: | 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. 3 figures |
| Databáze: | OpenAIRE |
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