Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Ultracompact all-optical full-adder and half-adder based on nonlinear plasmonic nanocavities

Ultracompact all-optical full-adder and half-adder based on nonlinear plasmonic nanocavities AbstractUltracompact chip-integrated all-optical half- and full-adders are realized based on signal-light induced plasmonic-nanocavity-modes shift in a planar plasmonic microstructure covered with a nonlinear nanocomposite layer, which can be directly integrated into plasmonic circuits. Tremendous nonlinear enhancement is obtained for the nanocomposite cover layer, attributed to resonant excitation, slow light effect, as well as field enhancement effect provided by the plasmonic nanocavity. The feature size of the device is <15 μm, which is reduced by three orders of magnitude compared with previous reports. The operating threshold power is determined to be 300 μW (corresponding to a threshold intensity of 7.8 MW/cm2), which is reduced by two orders of magnitude compared with previous reports. The intensity contrast ratio between two output logic states, “1” and “0,” is larger than 27 dB, which is among the highest values reported to date. Our work is the first to experimentally realize on-chip half- and full-adders based on nonlinear plasmonic nanocavities having an ultrasmall feature size, ultralow threshold power, and high intensity contrast ratio simultaneously. This work not only provides a platform for the study of nonlinear optics, but also paves a way to realize ultrahigh-speed signal computing chips. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nanophotonics de Gruyter

Ultracompact all-optical full-adder and half-adder based on nonlinear plasmonic nanocavities

Download PDF
13 pages

Loading next page...
1
 
/lp/degruyter/ultracompact-all-optical-full-adder-and-half-adder-based-on-nonlinear-LZQVF3dXtM

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
de Gruyter
Copyright
©2017, Xiaoyong Hu et al., published by De Gruyter.
ISSN
2192-8614
eISSN
2192-8614
DOI
10.1515/nanoph-2017-0035
Publisher site
See Article on Publisher Site

Abstract

AbstractUltracompact chip-integrated all-optical half- and full-adders are realized based on signal-light induced plasmonic-nanocavity-modes shift in a planar plasmonic microstructure covered with a nonlinear nanocomposite layer, which can be directly integrated into plasmonic circuits. Tremendous nonlinear enhancement is obtained for the nanocomposite cover layer, attributed to resonant excitation, slow light effect, as well as field enhancement effect provided by the plasmonic nanocavity. The feature size of the device is <15 μm, which is reduced by three orders of magnitude compared with previous reports. The operating threshold power is determined to be 300 μW (corresponding to a threshold intensity of 7.8 MW/cm2), which is reduced by two orders of magnitude compared with previous reports. The intensity contrast ratio between two output logic states, “1” and “0,” is larger than 27 dB, which is among the highest values reported to date. Our work is the first to experimentally realize on-chip half- and full-adders based on nonlinear plasmonic nanocavities having an ultrasmall feature size, ultralow threshold power, and high intensity contrast ratio simultaneously. This work not only provides a platform for the study of nonlinear optics, but also paves a way to realize ultrahigh-speed signal computing chips.

Journal

Nanophotonics – de Gruyter

Published: Jun 9, 2017

References

  • Expanded all-optical programmable logic array based on multi-input/output canonical logic units
  • Detuned-resonator induced transparency in dielectric-loaded plasmonic waveguides
  • Silicon-organic hybrid slot waveguide based three-input multicasted optical hexadecimal addition/subtraction
  • All-optical half-adder/half-subtractor using terahertz optical asymmetric demultiplexer
  • Semiconductor optical amplifier-based all-optical gates for high-speed optical processing
  • Simultaneous four-wave mixing and cross-gain modulation for implementing an all-optical XNOR logic gate using a single SOA
  • All-optical switch and limiter based on nonlinear polarization in Mach-Zehnder interferometer coupled with a polarization maintaining fiber-ring resonator
  • Surface plasmon subwavelength optics
  • A single As2Se3 chalcogenide highly non-linear fiber (HNLF) based simultaneous all-optical half-adder and half-subtracter
  • Ultrahigh-speed all-optical half adder based on fourwave mixing in semiconductor optical amplifier
  • Proposal and investigation of photonic data selector based on cross-phase modulation in highly nonlinear fiber
  • Tunable band-pass plasmonic waveguide filters with nanodisk resonators