A Photonic Switch Based on a Hybrid Combination of Metallic Nanoholes and Phase-change Vanadium Dioxide

Sun, M, Taha, M, Walia, S, Bhaskaran, M, Sriram, S, Shieh, W and Unnithan, R 2018, 'A Photonic Switch Based on a Hybrid Combination of Metallic Nanoholes and Phase-change Vanadium Dioxide', Scientific Reports, vol. 8, no. 1, pp. 1-9.


Document type: Journal Article
Collection: Journal Articles

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Title A Photonic Switch Based on a Hybrid Combination of Metallic Nanoholes and Phase-change Vanadium Dioxide
Author(s) Sun, M
Taha, M
Walia, S
Bhaskaran, M
Sriram, S
Shieh, W
Unnithan, R
Year 2018
Journal name Scientific Reports
Volume number 8
Issue number 1
Start page 1
End page 9
Total pages 9
Publisher Nature Publishing Group
Abstract A photonic switch is an integral part of optical telecommunication systems. A plasmonic bandpass filter integrated with materials exhibiting phase transition can be used as a thermally reconfigurable optical switch. This paper presents the design and demonstration of a broadband photonic switch based on an aluminium nanohole array on quartz utilising the semiconductor-to-metal phase transition of vanadium dioxide. The fabricated switch shows an operating range over 650 nm around the optical communication C, L, and U band with maximum 20%, 23% and 26% transmission difference in switching in the C band, L band, and U band, respectively. The extinction ratio is around 5 dB in the entire operation range. This architecture is a precursor for developing micron-size photonic switches and ultra-compact modulators for thin film photonics.
Subject Functional Materials
DOI - identifier 10.1038/s41598-018-29476-6
Copyright notice © The Author(s) 2018. Creative Commons Attribution 4.0 International License
ISSN 2045-2322
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