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A confocal optical microscope for detection of single impurities in a bulk crystal at cryogenic temperatures

Karlsson, Jenny LU ; Rippe, Lars LU and Kröll, Stefan LU (2016) In Review of Scientific Instruments 87(3).
Abstract

A compact sample-scanning confocal optical microscope for detection of single impurities below the surface of a bulk crystal at cryogenic temperatures is described. The sample, lens, and scanners are mounted inside a helium bath cryostat and have a footprint of only 19 × 19 mm. Wide field imaging and confocal imaging using a Blu-ray lens immersed in liquid helium are demonstrated with excitation at 370 nm. A spatial resolution of 300 nm and a detection efficiency of 1.6% were achieved.

Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
87
issue
3
article number
033701
publisher
American Institute of Physics (AIP)
external identifiers
  • pmid:27036778
  • wos:000373713300028
  • scopus:84959500108
ISSN
0034-6748
DOI
10.1063/1.4942906
language
English
LU publication?
yes
id
8a63ec76-a339-44da-b5f5-ca852e261c52
date added to LUP
2016-06-23 12:34:27
date last changed
2024-01-04 08:50:32
@article{8a63ec76-a339-44da-b5f5-ca852e261c52,
  abstract     = {{<p>A compact sample-scanning confocal optical microscope for detection of single impurities below the surface of a bulk crystal at cryogenic temperatures is described. The sample, lens, and scanners are mounted inside a helium bath cryostat and have a footprint of only 19 × 19 mm. Wide field imaging and confocal imaging using a Blu-ray lens immersed in liquid helium are demonstrated with excitation at 370 nm. A spatial resolution of 300 nm and a detection efficiency of 1.6% were achieved.</p>}},
  author       = {{Karlsson, Jenny and Rippe, Lars and Kröll, Stefan}},
  issn         = {{0034-6748}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Review of Scientific Instruments}},
  title        = {{A confocal optical microscope for detection of single impurities in a bulk crystal at cryogenic temperatures}},
  url          = {{http://dx.doi.org/10.1063/1.4942906}},
  doi          = {{10.1063/1.4942906}},
  volume       = {{87}},
  year         = {{2016}},
}