Nonlinear photonic diode behavior in energy-graded core-shell quantum well semiconductor rod

Suk Min Ko, Su-Hyun Gong, Yong Hoon Cho

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Future technologies require faster data transfer and processing with lower loss. A photonic diode could be an attractive alternative to the present Si-based electronic diode for rapid optical signal processing and communication. Here, we report highly asymmetric photonic diode behavior with low scattering loss, from tapered core-shell quantum well semiconductor rods that were fabricated to have a large gradient in their bandgap energy along their growth direction. Local laser illumination of the core-shell quantum well rods yielded a huge contrast in light output intensities from opposite ends of the rod.

Original languageEnglish
Pages (from-to)4937-4942
Number of pages6
JournalNano Letters
Volume14
Issue number9
DOIs
Publication statusPublished - 2014 Sep 10
Externally publishedYes

Fingerprint

Photonics
Semiconductor quantum wells
Diodes
rods
diodes
quantum wells
photonics
Semiconductor materials
Optical signal processing
Data transfer
optical communication
energy
signal processing
Energy gap
Lighting
communication
illumination
Scattering
gradients
Lasers

Keywords

  • asymmetric waveguide
  • GaN/InGaN core-shell quantum well
  • nonlinear
  • Photonic diode

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Nonlinear photonic diode behavior in energy-graded core-shell quantum well semiconductor rod. / Ko, Suk Min; Gong, Su-Hyun; Cho, Yong Hoon.

In: Nano Letters, Vol. 14, No. 9, 10.09.2014, p. 4937-4942.

Research output: Contribution to journalArticle

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