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Sensitivity enhancement and fringe reduction in tunable diode laser spectroscopy using hemispherical diffusers

Lundin, Patrik LU ; Karlsson, Marcus ; Mei, Liang LU ; Larsson, Jim LU ; Somesfalean, Gabriel LU and Svanberg, Sune LU (2017) In Review of Scientific Instruments 88(5).
Abstract

The use of diffuse, highly reflective optical components, in particular, a hemispherical BaSO4 diffuser, at the point of light injection into non-transparent or turbid media was evaluated as a means to increase the measurement sensitivity of spectroscopic absorption measurements. By performing the light injection from, e.g., an optical fiber through a component designed to make the light diffuse and to reflect (and thereby re-inject) light scattered from the sample, the total amount of light delivered into the sample is increased. Further, the occurrence of possible interference fringes is strongly reduced.

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
88
issue
5
article number
053111
publisher
American Institute of Physics (AIP)
external identifiers
  • pmid:28571416
  • wos:000402801900021
  • scopus:85019708005
ISSN
0034-6748
DOI
10.1063/1.4983807
language
English
LU publication?
yes
id
9652bfbc-a12a-463d-93bb-5213daf6c341
date added to LUP
2017-06-13 09:33:33
date last changed
2024-10-14 07:45:07
@article{9652bfbc-a12a-463d-93bb-5213daf6c341,
  abstract     = {{<p>The use of diffuse, highly reflective optical components, in particular, a hemispherical BaSO<sub>4</sub> diffuser, at the point of light injection into non-transparent or turbid media was evaluated as a means to increase the measurement sensitivity of spectroscopic absorption measurements. By performing the light injection from, e.g., an optical fiber through a component designed to make the light diffuse and to reflect (and thereby re-inject) light scattered from the sample, the total amount of light delivered into the sample is increased. Further, the occurrence of possible interference fringes is strongly reduced.</p>}},
  author       = {{Lundin, Patrik and Karlsson, Marcus and Mei, Liang and Larsson, Jim and Somesfalean, Gabriel and Svanberg, Sune}},
  issn         = {{0034-6748}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{5}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Review of Scientific Instruments}},
  title        = {{Sensitivity enhancement and fringe reduction in tunable diode laser spectroscopy using hemispherical diffusers}},
  url          = {{http://dx.doi.org/10.1063/1.4983807}},
  doi          = {{10.1063/1.4983807}},
  volume       = {{88}},
  year         = {{2017}},
}