Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
Opt Express. 2009 Mar 2;17(5):3673-8.

Cavity ring-down absorption spectrography based on filament-generated supercontinuum light.

Author information

  • 1Institute of Experimental Physics, Free University of Berlin, Arnimallee 14, 14195 Berlin, Germany. kamil.stelmaszczyk@physik.fu-berlin.de


We performed simultaneous, multispectral CRDS measurements that for the first time use the Supercontinuum light source. We called this approach Supercontinuum Cavity Ring-Down Spectrography (SC CRDSpectrography) and successfully applied it to measuring the absorption spectrum of NO2 gas at a concentration of 2 ppm. The extrapolated sensitivity of our setup was much greater, about 5 ppb. The ppb sensitivity level is comparable to this obtainable with single wavelength dye-lasers based CRDS systems. It is, therefore, feasible to construct extremely broadband and sensitive CRDS devices basing on the SC CRDSpectrography scheme.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk