Steerable plasmonic nanoantennas: active steering of radiation patterns using phase change materials.

Clicks: 292
ID: 66603
2019
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #41 of 81 articles by views in Optics express

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
In this article, we describe active steering of radiation patterns by complex nanoantenna structures - called steerable nanoantennas (SNs) - formed by combining multiple Yagi-Uda nanoantennas and thin films of a phase change material (VO). The radiation patterns of these nanoantennas can be actively steered by tunably changing the phase of the VO thin films from the semiconductor phase to the metallic phase. Moreover, the nanoantennas enable steering of the radiation patterns 'in the plane' of the nanoantennas. We demonstrate that the radiation pattern's maximum achievable steering is 90° for a two-element steerable nanoantenna when the phase of the VO thin film is changed from the semiconductor phase to the metallic phase. Moreover, it was observed that the radiation pattern of the steerable nanoantennas being proposed in our paper can be designed to be much more directed than previously reported steerable nanoantennas. By employing a four element steerable nanoantenna, we also demonstrate a full 360° active steering of the radiation pattern. This steerable nanoantenna consists of four coplanar Yagi-Uda nanoantennas, with each Yagi-Uda nanoantenna being present inside a VO thin film but each individually addressable VO thin film being separated from the other VO films by an air gap. We demonstrate that the radiation pattern can be tunably steered in 12 different directions using this four element steerable nanoantenna depending on the states of the four VO thin films. The steerable nanoantennas can find applications in areas such as tunable on chip plasmonic interconnects, networks on chip, or for selective excitation of fluorophores on a sensor chip.
Reference Key
savaliya2019steerableoptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Savaliya, Priten B;Gupta, Nitin;Dhawan, Anuj;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.031567
URL
Keywords
terahertz metamaterial absorber nanoantenna ohmic absorption

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.