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

• Main Authors: Jun, Shinae, Erdem, Talha, Guzelturk, Burak, Perkgöz, Nihan Kosku, Uran, Can, Jang, Eunjoo, Demir, Hilmi Volkan
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics::Optics and light
• Online Access: https://hdl.handle.net/10356/101821; http://hdl.handle.net/10220/24215
• Institution: Nanyang Technological University

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.