Projects per year
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.
Original language | English |
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Pages (from-to) | 1248-1254 |
Number of pages | 7 |
Journal | ACS Photonics |
Volume | 6 |
Issue number | 5 |
Early online date | 9 Apr 2019 |
DOIs | |
Publication status | Published - 15 May 2019 |
Research Groups and Themes
- Bristol Quantum Information Institute
- QETLabs
- Photonics and Quantum
Keywords
- direct laser writing
- two-photon lithography
- chemical vapor deposition
- chalcogenide materials
- photonic bandgap
- three-dimensional photonic crystals
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Dive into the research topics of 'Observation of Complete Photonic Bandgap in Low Refractive Index Contrast Inverse Rod-Connected Diamond Structured Chalcogenides'. Together they form a unique fingerprint.Projects
- 1 Finished
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Chalcogenide Photonic Technologies
Rarity, J. G. (Principal Investigator)
1/05/15 → 30/04/18
Project: Research
Profiles
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Professor John G Rarity
- School of Electrical, Electronic and Mechanical Engineering - Professor of Optical Communication Systems
- QET Labs
Person: Academic , Member