Usability of Tilted Plasmon Antenna with Structured Light
Por:
Quintero-Torres, Rafael, Dominguez-Juarez, Jorge Luis, Shutova, Mariia, Sokolov, Alexei V.
Publicada:
1 nov 2021
Resumen:
We study the effect of oblique illumination on the functioning of a
plasmonic nanoantenna for chiral light. The antenna is designed to
receive a structured beam of light and produce a nanosized near-field
distribution that possesses nonzero orbital angular momentum. The design
consists of metal (gold) microrods laid on a dielectric surface and is
compatible with well-developed nanofabrication techniques. Experimental
arrangements often require such an antenna to operate in a tilted
geometry, where input light is incident on the antenna at an oblique
angle. We analyze the limitations that the angled illumination imposes
and discuss approaches to mitigate these limitations. Through our
numerical simulations, we find that tilt angles require modifications to
the antenna design. Our analysis can guide current and future
experimental configurations to push the limits of resolution and
sensitivity.
Filiaciones:
Quintero-Torres, Rafael:
Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autonoma de Mexico, Juriquilla, Queretaro, 76230, Mexico
Dominguez-Juarez, Jorge Luis:
Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autonoma de Mexico, Juriquilla, Queretaro, 76230, Mexico
Cátedras CONACyT, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, 76230, Mexico
Shutova, Mariia:
Institute for Quantum Science and Engineering, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843-4242, United States
Sokolov, Alexei V.:
Institute for Quantum Science and Engineering, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843-4242, United States
gold, Gold
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