Detail publikace

Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces

AIGNER, A. LIGMAJER, F. ROVENSKÁ, K. HOLOBRÁDEK, J. IDESOVÁ, B. MAIER, S. TITTL, A. MENEZES, L.

Originální název

Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Active functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties.

Klíčová slova

Active metasurfaces; bound states in thecontinuum; vanadium dioxide; loss tunability; near-fieldtunability

Autoři

AIGNER, A.; LIGMAJER, F.; ROVENSKÁ, K.; HOLOBRÁDEK, J.; IDESOVÁ, B.; MAIER, S.; TITTL, A.; MENEZES, L.

Vydáno

27. 8. 2024

Nakladatel

AMER CHEMICAL SOC

Místo

WASHINGTON

ISSN

1530-6984

Periodikum

NANO LETTERS

Ročník

24

Číslo

35

Stát

Spojené státy americké

Strany od

10742

Strany do

10749

Strany počet

8

URL

https://pubs.acs.org/doi/10.1021/acs.nanolett.4c01703

Plný text v Digitální knihovně

http://hdl.handle.net/11012/249515

BibTex

@article{BUT189716,
  author="Andreas {Aigner} and Filip {Ligmajer} and Katarína {Rovenská} and Jakub {Holobrádek} and Beáta {Idesová} and Stefan A. {Maier} and Andreas {Tittl} and Leonardo de S. {Menezes}",
  title="Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces",
  journal="NANO LETTERS",
  year="2024",
  volume="24",
  number="35",
  pages="10742--10749",
  doi="10.1021/acs.nanolett.4c01703",
  issn="1530-6984",
  url="https://pubs.acs.org/doi/10.1021/acs.nanolett.4c01703"
}