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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
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
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
2007-08-23 08:27:17
date last changed
2017-06-11 03:46:19
@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},
  series       = {Applied Physics Letters},
  title        = {Photon mapping of quantum dots using a scanning tunneling microscope},
  url          = {http://dx.doi.org/10.1063/1.1527239},
  volume       = {81},
  year         = {2002},
}