Design of free-space couplers for suspended triangular nano-beam waveguides
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-10-05 |
| Journal | Journal of Physics D Applied Physics |
| Authors | John P. Hadden, Cobi Maynard, D. M. Beggs, Robert A. Taylor, A. J. Bennett |
| Institutions | University of Oxford, Cardiff University |
| Citations | 2 |
Abstract
Section titled āAbstractāAbstract Photonic waveguides (WGs) with triangular cross section are being investigated for material systems such as diamond, glasses and gallium nitride, which lack easy options to create conventional rectangular nanophotonic waveguides. The design rules for optical elements in these triangular WGs, such as couplers and gratings, are not well established. Here we present simulations of elements designed to couple light into, and out of, triangular WGs from the vertical direction, which can be implemented with current angled-etch fabrication technology. The devices demonstrate coupling efficiencies approaching 50% for light focused from a high numerical aperture objective. The implementation of such couplers will enable fast and efficient testing of closely spaced integrated circuit components.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2011 - Triangular nanobeam photonic cavities in single-crystal diamond [Crossref]
- 2012 - Free-standing mechanical and photonic nanostructures in single-crystal diamond [Crossref]
- 2021 - Quantum photonics in triangular-cross-section nanodevices in silicon carbide [Crossref]
- 2022 - Nuclear spin-wave quantum register for a solid-state qubit [Crossref]
- 2020 - Faraday-cage-assisted etching of suspended gallium nitride nanostructures [Crossref]
- 2017 - Bright room-temperature single-photon emission from defects in gallium nitride [Crossref]
- 2018 - Room temperature solid-state quantum emitters in the telecom range [Crossref]
- 2022 - Enhanced light collection from a gallium nitride color center using a near index-matched solid immersion lens [Crossref]
- 2015 - Ultra-low threshold gallium nitride photonic crystal nanobeam laser [Crossref]
- 2018 - Nonlinear frequency conversion in optical nanoantennas and metasurfaces: materials evolution and fabrication [Crossref]