Highly polarized light emission by isotropic quantum dots integrated with magnetically aligned segmented nanowires


Creative Commons License

Uran C., Erdem T., Guzelturk B., Perkgoz N. K., Jun S., Jang E., ...More

APPLIED PHYSICS LETTERS, vol.105, no.14, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 105 Issue: 14
  • Publication Date: 2014
  • Doi Number: 10.1063/1.4897971
  • Journal Name: APPLIED PHYSICS LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anadolu University Affiliated: No

Abstract

In this work, we demonstrate a proof-of-concept system for generating highly polarized light from colloidal quantum dots (QDs) coupled with magnetically aligned segmented Au/Ni/Au nanowires (NWs). Optical characterizations reveal that the optimized QD-NW coupled structures emit highly polarized light with an s-to p-polarization (s/p) contrast as high as 15: 1 corresponding to a degree of polarization of 0.88. These experimental results are supported by the finite-difference time-domain simulations, which demonstrate the interplay between the inter-NW distance and the degree of polarization. (C) 2014 AIP Publishing LLC.