Messina, Cristian, Gong, Yongkang, Abouzaid, Oumaima, Ratiu, Bogdan-Petrin, Grieb, Tim, Yan, Zhao, Rosenauer, Andreas, Oh, Sang Soon  ORCID: https://orcid.org/0000-0003-3093-7016 and Li, Qiang ORCID: https://orcid.org/0000-0002-5257-7704
2023.
Deformed honeycomb lattices of InGaAs nanowires grown on silicon-on-insulator for photonic crystal surface-emitting lasers.
Advanced Optical Materials
11
(5)
, 2201809.
10.1002/adom.202201809
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Abstract
Photonic crystals can be used to achieve high-performance surface-emitting lasers and enable novel photonic topological insulator devices. In this work, a GaAs/InGaAs heterojunction nanowire platform by selective area metalorganic vapor phase epitaxy for such applications is demonstrated. The nanowires are arranged into deformed honeycomb lattices on silicon-on-insulator substrate to exploit the quadrupolar photonic band-edge mode. Core-shell and axial heterostructures are formed with their crystalline properties studied by scanning transmission electron microscopy. Room-temperature, single mode lasing from both stretched and compressed honeycomb lattices within the telecom-O band, with lasing threshold as low as 1.25 μJ cm−2 is demonstrated. The potential of using InGaAs nanowire-based honeycomb lattices for small-divergence surface-emitting lasers and topological edge mode lasers is investigated. Finite-difference time-domain far field simulations suggest a sub-10° beam divergence can be achieved thanks to the out-of-plane diffraction.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QC Physics |
| Publisher: | Wiley-VCH GmbH |
| ISSN: | 2195-1071 |
| Funders: | ngineering and Physical Sciences Research Council, European Regional Development Fund through the Welsh Government (80762-CU145 (East)), Future Compound Semiconductor Manufacturing Hub (grant number EP/P006973/1) |
| Date of First Compliant Deposit: | 21 December 2022 |
| Date of Acceptance: | 2 December 2022 |
| Last Modified: | 04 Jul 2024 01:05 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/155057 |
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