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 journalArticlepeer-review

13 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 Sept 10
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2014 American Chemical Society.

Keywords

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

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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