November 21, 2022 Journal article Open Access

Mupparapu R.; Cunha J.; Tantussi F.; Jacassi A.; Summerer L.; Patrini M.; Giugni A.; Maserati L.; Alabastri A.; Garoli D.; Proietti Zaccaria R.

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  <identifier identifierType="URL">https://zenodo.org/record/7341380</identifier>
  <creators>
    <creator>
      <creatorName>Mupparapu R.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Cunha J.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Tantussi F.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Jacassi A.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Summerer L.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Patrini M.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Giugni A.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Maserati L.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Alabastri A.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Garoli D.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
    <creator>
      <creatorName>Proietti Zaccaria R.</creatorName>
      <affiliation>Istituto Italiano di Tecnologia</affiliation>
    </creator>
  </creators>
  <titles>
    <title>High-Frequency Light Rectification by Nanoscale Plasmonic Conical Antenna in Point-Contact-Insulator-Metal Architecture</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2022</publicationYear>
  <dates>
    <date dateType="Issued">2022-11-21</date>
  </dates>
  <resourceType resourceTypeGeneral="JournalArticle"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/7341380</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1002/aenm.202103785</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Numerous efforts have been undertaken to develop rectifying antennas operating&amp;nbsp;at high frequencies, especially dedicated to light harvesting and photodetection&amp;nbsp;applications. However, the development of efficient high frequency&amp;nbsp;rectifying antennas has been a major technological challenge both due to a lack&amp;nbsp;of comprehension of the underlying physics and limitations in the fabrication&lt;br&gt;
techniques. Various rectification strategies have been implemented, including&amp;nbsp;metal-insulator-metal traveling-wave diodes, plasmonic nanogap optical&amp;nbsp;antennas, and whisker diodes, although all show limited high-frequency operation&lt;br&gt;
and modest conversion efficiencies. Here a new type of rectifying antenna&amp;nbsp;based on plasmonic carrier generation is demonstrated. The proposed structure&amp;nbsp;consists of a resonant metallic conical nano-antenna tip in contact with the oxide&lt;br&gt;
surface of an oxide/metal bilayer. The conical shape allows for an improved&amp;nbsp;current generation based on plasmon-mediated electromagnetic-to-electron&amp;nbsp;conversion, an effect exploiting the nanoscale-tip contact of the rectifying&lt;br&gt;
antenna, and proportional to the antenna resonance and to the surface-electron&amp;nbsp;scattering. Importantly, this solution provides rectification operation at 280 THz&amp;nbsp;(1064 nm) with a 100-fold increase in efficiency compared to previously reported&lt;br&gt;
results. Finally, the conical rectifying antenna is also demonstrated to operate&amp;nbsp;at 384 THz (780 nm), hence paving a way toward efficient rectennas toward the&amp;nbsp;visible range.&lt;/p&gt;</description>
  </descriptions>
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