Diode like high-contrast asymmetric transmission of linearly polarized waves based on plasmon-tunneling effect coupling to electromagnetic radiation modes

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buir.contributor.authorKhalichi, Bahram
buir.contributor.authorGhobadi, Amir
buir.contributor.authorOsgouei, Ataollah Kalantari
buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidKhalichi, Bahram|0000-0002-9465-1044
buir.contributor.orcidGhobadi, Amir|0000-0002-8146-0361
buir.contributor.orcidOsgouei, Ataollah Kalantari|0000-0002-0971-7687
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage12en_US
dc.citation.issueNumber36en_US
dc.citation.spage1en_US
dc.citation.volumeNumber54en_US
dc.contributor.authorKhalichi, Bahram
dc.contributor.authorGhobadi, Amir
dc.contributor.authorOsgouei, Ataollah Kalantari
dc.contributor.authorÖzbay, Ekmel
dc.date.accessioned2022-02-09T07:24:34Z
dc.date.available2022-02-09T07:24:34Z
dc.date.issued2021-06-25
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.abstractWe present a narrow-band optical diode with a high-contrast forward-to-backward ratio at the near-infrared region. The design has a forward transmission of approximately $88\% $, and a backward one of less than $3\% $, yielding a contrast ratio of greater than $14.5\,$ dB at a wavelength of $1550\,$ nm. The structure is composed of a one-dimensional diffraction grating on top of a dielectric slab waveguide, both of which are made of silicon nitride (Si3N4), and all together are placed over a silver (Ag) thin film embedded on a dielectric substrate. Utilizing a dielectric-based diffraction grating waveguide on a thin silver layer leads to the simultaneous excitation of two surface plasmon modes known as long- and short-range surface plasmon polaritons (SPPs) at both interfaces of the metallic layer. The plasmon-tunneling effect, which is the result of the coupling of SPPs excited at the upper interface of the metallic layer to the radiation modes, provides a high asymmetric transmission (AT) property. The spectral response of the proposed high-contrast AT device is verified using both rigorous coupled-wave analysis as an analytical approach and finite difference time domain as a numerical one.en_US
dc.description.provenanceSubmitted by Burcu Böke (tburcu@bilkent.edu.tr) on 2022-02-09T07:24:34Z No. of bitstreams: 1 Diode_like_high_contrast_asymmetric_transmission_of_linearly_polarized_waves_based_on_plasmon_tunneling_effect_coupling_to_electromagnetic_radiation_modes.pdf: 3191828 bytes, checksum: 2108f9511135f0a2c8f98b23f4a81aef (MD5)en
dc.description.provenanceMade available in DSpace on 2022-02-09T07:24:34Z (GMT). No. of bitstreams: 1 Diode_like_high_contrast_asymmetric_transmission_of_linearly_polarized_waves_based_on_plasmon_tunneling_effect_coupling_to_electromagnetic_radiation_modes.pdf: 3191828 bytes, checksum: 2108f9511135f0a2c8f98b23f4a81aef (MD5) Previous issue date: 2021-06-25en
dc.identifier.doi10.1088/1361-6463/ac0ab8en_US
dc.identifier.eissn1361-6463
dc.identifier.issn0022-3727
dc.identifier.urihttp://hdl.handle.net/11693/77148
dc.language.isoEnglishen_US
dc.publisherInstitute of Physics Publishing Ltd.en_US
dc.relation.isversionofhttps://doi.org/10.1088/1361-6463/ac0ab8en_US
dc.source.titleJournal of Physics D: Applied Physicsen_US
dc.subjectAsymmetric transmissionen_US
dc.subjectDiffraction gratingen_US
dc.subjectSurface plasmon polaritonsen_US
dc.subjectPlasmon tunnelingen_US
dc.titleDiode like high-contrast asymmetric transmission of linearly polarized waves based on plasmon-tunneling effect coupling to electromagnetic radiation modesen_US
dc.typeArticleen_US

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