Cited by 227Graphene research and applicationsPlasmonic and Surface Plasmon Research2D Materials and Applications

Metamaterial graphene photodetector with bandwidth exceeding 500 gigahertz

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Koepfli, Stefan M., Baumann, Michael, Koyaz, Yesim, Gadola, Robin, Güngör, Arif, Keller, Killian, Horst, Yannik, Nashashibi, Shadi +5 more·2023·Science

Abstract

Although graphene has met many of its initially predicted optoelectronic, thermal, and mechanical properties, photodetectors with large spectral bandwidths and extremely high frequency responses remain outstanding. In this work, we demonstrate a >500 gigahertz, flat–frequency response, graphene-based photodetector that operates under ambient conditions across a 200-nanometer-wide spectral band with center wavelengths adaptable from <1400 to >4200 nanometers. Our detector combines graphene with metamaterial perfect absorbers with direct illumination from a single-mode fiber, which breaks with the conventional miniaturization of photodetectors on an integrated photonic platform. This design allows for much higher optical powers while still allowing record-high bandwidths and data rates. Our results demonstrate that graphene photodetectors can outperform conventional technologies in terms of speed, bandwidth, and operation across a large spectral range.

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Registry

Crossref · 10.1126/science.adg8017

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64 of 64 references verified0 citation errors · 0 not checkable

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Authors
Koepfli, S. M., Baumann, M., Koyaz, Y., Gadola, R., Güngör, A., Keller, K., Horst, Y., Nashashibi, S., Schwanninger, R., Doderer, M., Passerini, E., Fedoryshyn, Y., & Leuthold, J.
Affiliations
  • ETH Zurich (CH)
  • Institute of Electromagnetic Fields (IEF), ETH Zürich, 8092 Zürich, Switzerland.
Corresponding author
  • Koepfli, Stefan M.
  • Leuthold, Juerg
Venue
Science
Published
2023-06-16
Volume
380
Issue
6650
Pages
1169-1174
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W4380769260
Cited by
227
References
64
Citations by year
2026: 65 · 2025: 83 · 2024: 62 · 2023: 17
FWCI
16.76
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, other-oa)
  • ETH Zürich Research Collection
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
  • Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
  • Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
Keywords
graphene photodetectors, metamaterial perfect absorber, terahertz bandwidth, high-speed photodetection, broadband photodetection, integrated photonics

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