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Photon mapping of quantum dots using a scanning tunneling microscope

Håkanson, Ulf LU ; Johansson, Mikael LU ; Holm, Magnus LU ; Pryor, C ; Samuelson, Lars LU ; Seifert, Werner LU and Pistol, Mats-Erik LU (2002) In Applied Physics Letters 81(23). p.4443-4445
Abstract
Scanning tunneling microscopy (STM) and scanning tunneling luminescence (STL) have been used to investigate the geometric and optical properties of individual self-assembled InP quantum dots overgrown with a thin layer of GaInP. STL spectra and monochromatic photon maps were used to correlate the surface topography with the optical properties of single quantum dots. We find a spatial resolution of about 10 nm in the photon maps. Theoretical emission spectra were calculated by six-band k.p theory using a realistic shape of the dot as well as of the cap layer. The calculated emission spectrum of a single dot is in good agreement with the experimental findings. (C) 2002 American Institute of Physics.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
81
issue
23
pages
4443 - 4445
publisher
American Institute of Physics (AIP)
external identifiers
  • wos:000179481900044
  • scopus:0037011564
ISSN
0003-6951
DOI
10.1063/1.1527239
language
English
LU publication?
yes
id
70f1e8bf-362d-4c77-88af-fc6e8451d8c1 (old id 322896)
date added to LUP
2016-04-01 12:13:19
date last changed
2025-10-14 12:25:32
@article{70f1e8bf-362d-4c77-88af-fc6e8451d8c1,
  abstract     = {{Scanning tunneling microscopy (STM) and scanning tunneling luminescence (STL) have been used to investigate the geometric and optical properties of individual self-assembled InP quantum dots overgrown with a thin layer of GaInP. STL spectra and monochromatic photon maps were used to correlate the surface topography with the optical properties of single quantum dots. We find a spatial resolution of about 10 nm in the photon maps. Theoretical emission spectra were calculated by six-band k.p theory using a realistic shape of the dot as well as of the cap layer. The calculated emission spectrum of a single dot is in good agreement with the experimental findings. (C) 2002 American Institute of Physics.}},
  author       = {{Håkanson, Ulf and Johansson, Mikael and Holm, Magnus and Pryor, C and Samuelson, Lars and Seifert, Werner and Pistol, Mats-Erik}},
  issn         = {{0003-6951}},
  language     = {{eng}},
  number       = {{23}},
  pages        = {{4443--4445}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Applied Physics Letters}},
  title        = {{Photon mapping of quantum dots using a scanning tunneling microscope}},
  url          = {{http://dx.doi.org/10.1063/1.1527239}},
  doi          = {{10.1063/1.1527239}},
  volume       = {{81}},
  year         = {{2002}},
}