Matches in SemOpenAlex for { <https://semopenalex.org/work/W2888970431> ?p ?o ?g. }
- W2888970431 abstract "Graphene distinguishes itself as a promising candidate for realizing tunable integrated photonic devices with high flexibility. We propose a set of ultracompact tunable on-chip waveguide couplers with mode-selectivity and polarization sensitivity around the telecom wavelength of 1.55 μm, under the configuration of graphene-laminated silicon waveguides patterned with gold nanoantennas. Versatile couplings can be achieved in a widely tunable fashion within a deep-subwavelength area (210 × 210 nm2), by marrying the advantages of tight field confinement in plasmonic antennas and the largely tunable carrier density of graphene. Incident light signals can be selectively coupled into different fundamental modes with good mode quality and high directionality exceeding 25 dB. Design scenarios for asymmetric couplings are presented, where the operation wavelength can be tuned across a 107-nm range around 1.55 mm by altering the chemical potential of graphene from 0 to 1.8 eV. Furthermore, the proposed schemes can be leveraged as mode-sensitive on-chip directional waveguide signal detectors with an extinction ratio over 10 dB. Our results provide a new paradigm upon graphene-assisted tunable integrated photonic applications." @default.
- W2888970431 created "2018-09-07" @default.
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- W2888970431 date "2018-09-06" @default.
- W2888970431 modified "2023-10-12" @default.
- W2888970431 title "Ultracompact Graphene-Assisted Tunable Waveguide Couplers with High Directivity and Mode Selectivity" @default.
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- W2888970431 doi "https://doi.org/10.1038/s41598-018-31555-7" @default.
- W2888970431 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6127104" @default.
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