Nanoplasmonics for Ultrafast Coherent Control of Optical Fields

Abstract

This one-year project investigated plasmonic nanoantennas, comparing snowflake and log-periodic designs, and applied developed tools to nanoantenna arrays, "chirped signals", and nanoantenna responses with dielectric and graphene loads. The project was seeking to maximize bandwidth and reduce temporal pulse width. Some findings: time-domain methods enabled modeling of nonlinearity and chirp, a circularly polarized pulse train can sequentially excite arms of an antenna to create a center-point pulse train, closely-spaced antennas can be resolved, log-periodic antennas have increased bandwidth vs snowflake, and the high surface impedance inherent to graphene results in high field concentrations.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2014
Accession Number
ADA611573

Entities

People

  • Khalid Rajab

Organizations

  • Queen Mary University of London

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Antennas
  • Bandwidth
  • Computer Science
  • Electromagnetic Fields
  • Far Field
  • Frequency
  • Graphene
  • Impedance
  • Information Operations
  • Log Periodic Antennas
  • Materials
  • Nanoantennas
  • Nanostructures
  • Resonant Frequency
  • Time Domain
  • Waves

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Phased Array Antenna Design.
  • Radar Systems Engineering.

Technology Areas

  • Microelectronics
  • Space