Sensitive Detection Techniques in Laser Spectroscopy

W. Demtroeder, M. Keil, Th Platz, H. Wenz

Research output: Contribution to journalConference articlepeer-review


Several detection techniques of laser spectroscopy are discussed. The techniques are either based on modified absorption spectroscopy with frequency or wavelength modulation, opto-acoustic and opto-thermal spectroscopy, laser induced fluorescence or on resonant two photon ionization. A comparative study of the techniques with their advantages and disadvantages is also presented. Modulated absorption spectroscopy is one laser spectroscopy technique that can be used in cells as well as in molecular beams. Opto-acoustic spectroscopy needs a buffer gas in order to transfer the excitation energy sufficiently fast into translational energy.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 Dec 2003
Externally publishedYes
Event12th International School on Quantum Electronics Laser Physics and Applications - Varna, Bulgaria
Duration: 23 Sep 200227 Sep 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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