Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Photonic–plasmonic-coupled nanoantennas for polarization-controlled multispectral nanofocusing

Not Accessible

Your library or personal account may give you access

Abstract

We report on the design and experimental demonstration of array-enhanced nanoantennas for polarization-controlled multispectral nanofocusing in the near-IR spectral range. We design plasmonic double bow-tie nanoantennas-coupled to multiple-periodic nanoparticle arrays to harvest radiation of designed wavelengths from a large spatial area and to focus it into a targeted nanoscale region. Near-field calculations were performed on a gold nanoantenna array using three-dimensional finite difference time domain simulations. Cross-shaped optical nanoantennas were fabricated on glass substrates using electron beam lithography. The optical characterization of the fabricated nanoantennas was performed using second harmonic excitation spectroscopy that demonstrates multiwavelength photonic coupling in good agreement with the antenna modeling. The nanoantenna structures introduced in this Letter provide the ability to focus optical energy into deep subwavelength areas and to address multiple spectral regions with polarization control. Such attributes are highly desirable in optical biosensing, enhanced Raman scattering, and for nonlinear plasmonic applications.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Polarization controlled coupling and shaping of surface plasmon polaritons by nanoantenna arrays

Ori Avayu, Itai Epstein, Elad Eizner, and Tal Ellenbogen
Opt. Lett. 40(7) 1520-1523 (2015)

Multiple-wavelength plasmonic nanoantennas

Svetlana V. Boriskina and Luca Dal Negro
Opt. Lett. 35(4) 538-540 (2010)

Multi-wavelength mid-infrared plasmonic antennas with single nanoscale focal point

Romain Blanchard, Svetlana V. Boriskina, Patrice Genevet, Mikhail A. Kats, Jean-Philippe Tetienne, Nanfang Yu, Marlan O. Scully, Luca Dal Negro, and Federico Capasso
Opt. Express 19(22) 22113-22124 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved