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Observation of complete photonic bandgap in low refractive index contrast inverse rod-connected diamond structured chalcogenides

Observation of complete photonic bandgap in low refractive index contrast inverse rod-connected diamond structured chalcogenides
Observation of complete photonic bandgap in low refractive index contrast inverse rod-connected diamond structured chalcogenides
Three-dimensional complete photonic bandgap materials or photonic crystals block light propagation in all directions. The rod-connected diamond structure exhibits the largest photonic bandgap known to date and supports a complete bandgap for the lowest refractive index contrast ratio down to nhigh/nlow ∼ 1.9. We confirm this threshold by measuring a complete photonic bandgap in the infrared region in Sn–S–O (n ∼ 1.9) and Ge–Sb–S–O (n ∼ 2) inverse rod-connected diamond structures. The structures were fabricated using a low-temperature chemical vapor deposition process via a single-inversion technique. This provides a reliable fabrication technique of complete photonic bandgap materials and expands the library of backfilling materials, leading to a wide range of future photonic applications.
2330-4022
1248-1254
Chen, Lifeng
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Morgan, Katrina
2b9605fc-ac61-4ae7-b5f1-b6e3d257701d
Alzaidy, Ghadah, Abdulrahman
2d39b828-3eb4-4d96-85e6-d436a2b71435
Huang, Chung-Che
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Ho, Ying-Lung Daniel
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Taverne, Mike P.C.
6444e2cd-5d52-43a7-83b6-2e72f922501d
Zheng, Xu
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Ren, Zhong
cab81eb7-3953-413c-a322-d017fe88a364
Feng, Zhuo
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Zeimpekis, Ioannis
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Hewak, Daniel
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Rarity, John G.
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Chen, Lifeng
5e67c8cc-4317-4ceb-9d78-74cbc4beb8cd
Morgan, Katrina
2b9605fc-ac61-4ae7-b5f1-b6e3d257701d
Alzaidy, Ghadah, Abdulrahman
2d39b828-3eb4-4d96-85e6-d436a2b71435
Huang, Chung-Che
825f7447-6d02-48f6-b95a-fa33da71f106
Ho, Ying-Lung Daniel
945e3431-b334-4d98-858f-c3fae452640f
Taverne, Mike P.C.
6444e2cd-5d52-43a7-83b6-2e72f922501d
Zheng, Xu
2e86cce6-972d-4925-9a24-a61e90d2406b
Ren, Zhong
cab81eb7-3953-413c-a322-d017fe88a364
Feng, Zhuo
cd51c72a-9ae9-452d-87ba-62520081e90a
Zeimpekis, Ioannis
a2c354ec-3891-497c-adac-89b3a5d96af0
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Rarity, John G.
f7e3ab11-2a7c-4242-bf27-93f1adb5420f

Chen, Lifeng, Morgan, Katrina, Alzaidy, Ghadah, Abdulrahman, Huang, Chung-Che, Ho, Ying-Lung Daniel, Taverne, Mike P.C., Zheng, Xu, Ren, Zhong, Feng, Zhuo, Zeimpekis, Ioannis, Hewak, Daniel and Rarity, John G. (2019) Observation of complete photonic bandgap in low refractive index contrast inverse rod-connected diamond structured chalcogenides. ACS Photonics, 6 (5), 1248-1254. (doi:10.1021/acsphotonics.9b00184).

Record type: Article

Abstract

Three-dimensional complete photonic bandgap materials or photonic crystals block light propagation in all directions. The rod-connected diamond structure exhibits the largest photonic bandgap known to date and supports a complete bandgap for the lowest refractive index contrast ratio down to nhigh/nlow ∼ 1.9. We confirm this threshold by measuring a complete photonic bandgap in the infrared region in Sn–S–O (n ∼ 1.9) and Ge–Sb–S–O (n ∼ 2) inverse rod-connected diamond structures. The structures were fabricated using a low-temperature chemical vapor deposition process via a single-inversion technique. This provides a reliable fabrication technique of complete photonic bandgap materials and expands the library of backfilling materials, leading to a wide range of future photonic applications.

Text
ACS photonics - RCD full bandgap - for PURE - 2019-05-01 - Accepted Manuscript
Restricted to Repository staff only until 9 April 2020.
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More information

Accepted/In Press date: 9 April 2019
e-pub ahead of print date: 9 April 2019
Published date: 15 May 2019

Identifiers

Local EPrints ID: 430685
URI: https://eprints.soton.ac.uk/id/eprint/430685
ISSN: 2330-4022
PURE UUID: 36ecc629-a791-4d4a-8231-c0cb3b1a132e
ORCID for Katrina Morgan: ORCID iD orcid.org/0000-0002-8600-4322
ORCID for Chung-Che Huang: ORCID iD orcid.org/0000-0003-3471-2463
ORCID for Daniel Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 08 May 2019 16:30
Last modified: 06 Aug 2019 00:36

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