Journal article
Design of free-space couplers for suspended triangular nano-beam waveguides
- Abstract:
- 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 5.9MB, Terms of use)
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- Publisher copy:
- 10.1088/1361-6463/ac941e
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Grant:
- EP/P006973/1; CSHubFS05
- Publisher:
- IOP Publishing
- Journal:
- Journal of Physics D: Applied Physics More from this journal
- Volume:
- 55
- Issue:
- 47
- Article number:
- 474002
- Publication date:
- 2022-10-05
- Acceptance date:
- 2022-09-22
- DOI:
- EISSN:
-
1361-6463
- ISSN:
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0022-3727
- Language:
-
English
- Keywords:
- Pubs id:
-
1281602
- Local pid:
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pubs:1281602
- Deposit date:
-
2022-10-06
Terms of use
- Copyright holder:
- Hadden et al.
- Copyright date:
- 2022
- Rights statement:
- © 2022 The Author(s). Published by IOP Publishing Ltd. Original Content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
- Licence:
- CC Attribution (CC BY)
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