Detail publikace

Optically Tunable Mie Resonance VO2 Nanoantennas for Metasurfaces in the Visible

KEPIČ, P. LIGMAJER, F. HRTOŇ, M. REN, H. MENEZES, L. MAIER, S. ŠIKOLA, T.

Originální název

Optically Tunable Mie Resonance VO2 Nanoantennas for Metasurfaces in the Visible

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Mie resonance; nanoantenna; metasurface; tunability; visible; Huygens' sources

Autoři

KEPIČ, P.; LIGMAJER, F.; HRTOŇ, M.; REN, H.; MENEZES, L.; MAIER, S.; ŠIKOLA, T.

Vydáno

12. 4. 2021

Nakladatel

AMER CHEMICAL SOC

Místo

WASHINGTON

ISSN

2330-4022

Periodikum

ACS Photonics

Ročník

8

Číslo

4

Stát

Spojené státy americké

Strany od

1048

Strany do

1057

Strany počet

10

URL

https://pubs.acs.org/doi/10.1021/acsphotonics.1c00222

BibTex

@article{BUT172192,
  author="Peter {Kepič} and Filip {Ligmajer} and Martin {Hrtoň} and Haoran {Ren} and Leonardo de S. {Menezes} and Stefan A. {Maier} and Tomáš {Šikola}",
  title="Optically Tunable Mie Resonance VO2 Nanoantennas for Metasurfaces in the Visible",
  journal="ACS Photonics",
  year="2021",
  volume="8",
  number="4",
  pages="1048--1057",
  doi="10.1021/acsphotonics.1c00222",
  issn="2330-4022",
  url="https://pubs.acs.org/doi/10.1021/acsphotonics.1c00222"
}