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

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.
Authors:
; ;  [1] ;  [1] ;  [2] ; ;  [3] ;  [1] ;  [4]
  1. Department of Electrical and Electronics Engineering, Department of Physics, and UNAM - National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey)
  2. (Turkey)
  3. Inorganic Material Laboratory, Material Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-803 (Korea, Republic of)
  4. (Singapore)
Publication Date:
OSTI Identifier:
22351125
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 14; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; DISTANCE; EMISSION; GOLD; NANOWIRES; NICKEL; OPTICAL PROPERTIES; POLARIZATION; QUANTUM DOTS; QUANTUM WIRES; SIMULATION; VISIBLE RADIATION