Correction to: Active tuning from narrowband to broadband absorbers using a sub-wavelength VO2 embedded layer

buir.contributor.authorOsgouei, Ataollah Kalantari
buir.contributor.authorHajian, Hodja
buir.contributor.authorKhalichi, Bahram
buir.contributor.authorSerebryannikov, Andriy E.
buir.contributor.authorGhobadi, Amir
buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidOsgouei, Ataollah Kalantari|0000-0002-0971-7687
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage1021en_US
dc.citation.spage1013en_US
dc.citation.volumeNumber16en_US
dc.contributor.authorOsgouei, Ataollah Kalantari
dc.contributor.authorHajian, Hodjat
dc.contributor.authorKhalichi, Bahram
dc.contributor.authorSerebryannikov, Andriy E.
dc.contributor.authorGhobadi, Amir
dc.contributor.authorÖzbay, Ekmel
dc.date.accessioned2022-03-01T11:47:52Z
dc.date.available2022-02-11T13:06:47Z
dc.date.available2022-03-01T11:47:52Z
dc.date.issued2021-02-04
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractMetamaterial perfect absorbers (MPAs) with dynamic thermal tuning features are able to control the absorption performance of the resonances, providing diverse applications spanning from optical switches and filters to modulators. In this paper, we propose an MPA with diverse functionalities enabled by vanadium dioxide (VO2) embedded in a metal-dielectric plasmonic structure. For the initial design purpose, a silicon (Si) nanograting on a silver (Ag) mirror is proposed to have multiple resonant responses in the near infrared (NIR) region. Then, the insertion of a thin VO2 layer at the right position enables the design to act as an on/off switch and resonance tuner. In the insulator phase of VO2, in which the permittivity data of VO2 is similar to that of Si, a double strong resonant behavior is achieved within the NIR region. By increasing the temperature, the state of VO2 transforms from insulator to metallic so that the absorption bands turn into three distinct resonant peaks with close spectral positions. Upon this transformation, a new resonance emerges and the existing resonance features experience blue/red shifts in the spectral domain. The superposition of these peaks makes the overall absorption bandwidth broad. Although Si has a small thermo-optic coefficient, owing to strong light confinement in the ultrasmall gaps, a substantial tuning can be achieved within the Si nanogratings. Therefore, the proposed hybrid design can provide multi-resonance tunable features to cover a broad range and can be a promising strategy for the design of linearly thermal-tunable and broadband MPAs. Owing to the proposed double tuning feature, the resonance wavelengths exhibits great sensitivity to temperature, covering a broad wavelength range. Overall, the proposed design strategy demonstrates diverse functionalities enabled by the integration of a thin VO2 layer with plasmonic absorbers.en_US
dc.identifier.doi10.1007/s11468-021-01385-xen_US
dc.identifier.eissn1557-1963
dc.identifier.issn1557-1955
dc.identifier.urihttp://hdl.handle.net/11693/77293.2
dc.language.isoEnglishen_US
dc.publisherSpringeren_US
dc.relation.isversionofhttps://doi.org/10.1007/s11468-021-01385-xen_US
dc.source.titlePlasmonicsen_US
dc.subjectVanadium dioxideen_US
dc.subjectPlasmonicsen_US
dc.subjectPerfect absorberen_US
dc.subjectActive tunable metamaterialen_US
dc.subjectLocalized surface plasmonen_US
dc.titleCorrection to: Active tuning from narrowband to broadband absorbers using a sub-wavelength VO2 embedded layeren_US
dc.typeErratumen_US
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