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

Research output: Contribution to journalArticle

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.

Details

Authors
Organisations
External organisations
  • South China Normal University
  • Lund University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Article number053111
JournalReview of Scientific Instruments
Volume88
Issue number5
Publication statusPublished - 2017 May 1
Publication categoryResearch
Peer-reviewedYes