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

Frequency-chirped subwavelength nanoantennas

Not Accessible

Your library or personal account may give you access

Abstract

Herein we propose, theoretically investigate, and numerically demonstrate the first use to our knowledge of frequency chirping to achieve broadband, efficient subwavelength vertical emission from a dielectric waveguide. We demonstrate this unique and effective approach in the telecom C band in a nanophotonic frequency-chirped dipole antenna. The structure utilizes a plasmonic antenna placed above an Si3N4 waveguide and a ground plane to enhance emission efficiency. Three-dimensional finite-difference time-domain simulations reveal up to 55% vertical emission efficiency, and a bandwidth of 500 nm is possible in a structure less than half a wavelength long. The design methodology and theoretical underpinnings of frequency-chirped nanophotonic antennas coupled to dielectric waveguides are presented.

© 2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Vertical emitting aperture nanoantennas

Ami Yaacobi, Erman Timurdogan, and Michael R. Watts
Opt. Lett. 37(9) 1454-1456 (2012)

Frequency-dependent optical steering from subwavelength plasmonic structures

A. Djalalian-Assl, D. E. Gómez, A. Roberts, and T. J. Davis
Opt. Lett. 37(20) 4206-4208 (2012)

Compact dipole nanoantenna coupler to plasmonic slot waveguide

Andrei Andryieuski, Radu Malureanu, Giulio Biagi, Tobias Holmgaard, and Andrei Lavrinenko
Opt. Lett. 37(6) 1124-1126 (2012)

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

Equations (3)

You do not have subscription access to this journal. Equations 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