Imperial College London
Alternate

ProfessorStefanMaier

Faculty of Natural Sciences, Department of Physics

Lee-Lucas Chair in Experimental Physics
 
 
 
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Contact

 

+44 (0)20 7594 6063s.maier Website CV

 
 
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Location

 

Huxley 903Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kepic:2021:10.1021/acsphotonics.1c00222,
author = {Kepic, P and Ligmajer, F and Hrton, M and Ren, H and Menezes, LDS and Maier, SA and Sikola, T},
doi = {10.1021/acsphotonics.1c00222},
journal = {ACS Photonics},
pages = {1048--1057},
title = {Optically tunable mie resonance VO2 nanoantennas for metasurfaces in the visible},
url = {http://dx.doi.org/10.1021/acsphotonics.1c00222},
volume = {8},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Metasurfaces are ultrathin nanostructured surfaces that can allow arbitrary manipulation of light. Implementing dynamic tunability into their design could allow the optical functions of metasurfaces to be rapidly modified at will. The most pronounced and robust tunability of optical properties is provided by phase-change materials such as vanadium dioxide (VO2) and germanium antimony telluride (GST), but their implementations have been limited only to near-infrared wavelengths. Here, we demonstrate that VO2 nanoantennas with widely tunable Mie resonances can be utilized for designing tunable metasurfaces in the visible range. In contrast to the dielectric-metallic VO2 phase transition-induced tunability in previous demonstrations, we show that persisting dielectric Mie resonances in VO2 nanoantennas offer remarkable scattering and extinction modulation depths (5–8 dB and 1–3 dB, respectively) for tunability in the visible. Moreover, these strong resonances are optically switchable using a continuous-wave laser. Our results establish VO2 nanostructures as low-loss building blocks of optically tunable metasurfaces.
AU  - Kepic,P
AU  - Ligmajer,F
AU  - Hrton,M
AU  - Ren,H
AU  - Menezes,LDS
AU  - Maier,SA
AU  - Sikola,T
DO  - 10.1021/acsphotonics.1c00222
EP  - 1057
PY  - 2021///
SN  - 2330-4022
SP  - 1048
TI  - Optically tunable mie resonance VO2 nanoantennas for metasurfaces in the visible
T2  - ACS Photonics
UR  - http://dx.doi.org/10.1021/acsphotonics.1c00222
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000643600400014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.acs.org/doi/10.1021/acsphotonics.1c00222
UR  - http://hdl.handle.net/10044/1/89638
VL  - 8
ER  -
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