Jump to main content
Jump to site search

Issue 9, 2018
Previous Article Next Article

Spin-encoded subwavelength all-optical logic gates based on single-element optical slot nanoantennas

Author affiliations

Abstract

Optical logic gates are important elements in optical computing and optical circuits. However, the footprints of the present optical logic gates are still on the micrometer scale. Further miniaturization of the logic gates to nanometer scale remains challenging. Here we propose, and demonstrate experimentally, subwavelength all-optical logic gates based on single-element optical slot nanoantennas. By employing a spin-encoded scheme, we achieve OR, AND, NOT, NAND and NOR logic gates via an L-shaped optical slot nanoantenna with a footprint of 300 nm by 300 nm, and a XNOR logic gate via a rectangle optical slot nanoantenna with a footprint of 220 nm by 60 nm. The SPP launching and logic operation via mode coupling instead of path interference are integrated together at a single-element nanoantenna, which considerably shrinks the dimensions of the device. The experimental results show the potential of the single optical slot nanoantenna in subwavelength all-optical logic computing and nanophotonic information processing.

Graphical abstract: Spin-encoded subwavelength all-optical logic gates based on single-element optical slot nanoantennas

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 Nov 2017, accepted on 09 Feb 2018 and first published on 09 Feb 2018


Article type: Paper
DOI: 10.1039/C7NR08871J
Citation: Nanoscale, 2018,10, 4523-4527
  •   Request permissions

    Spin-encoded subwavelength all-optical logic gates based on single-element optical slot nanoantennas

    Z. Yang, Y. Fu, J. Yang, C. Hu and J. Zhang, Nanoscale, 2018, 10, 4523
    DOI: 10.1039/C7NR08871J

Search articles by author

Spotlight

Advertisements