@article{SalffnerBoehmReichetal.2014, author = {Salffner, Katharina and Boehm, Michael and Reich, Oliver and L{\"o}hmannsr{\"o}ben, Hans-Gerd}, title = {A broadband cavity ring-down spectrometer based on an incoherent near infrared light source}, series = {Applied physics : B, Lasers and optics}, volume = {116}, journal = {Applied physics : B, Lasers and optics}, number = {4}, publisher = {Springer}, address = {New York}, issn = {0946-2171}, doi = {10.1007/s00340-014-5762-9}, pages = {785 -- 792}, year = {2014}, language = {en} } @misc{LauSalffnerLoehmannsroeben2006, author = {Lau, Steffen and Salffner, Katharina and L{\"o}hmannsr{\"o}ben, Hans-Gerd}, title = {Isotopic resolution of carbon monoxide and carbon dioxide by NIR diode laser spectroscopy}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10135}, year = {2006}, abstract = {Near-infrared (NIR) absorption spectroscopy with tunable diode lasers allows the simultaneous detection of the three most important isotopologues of carbon dioxide (12CO2, 13CO2, 12C18O16O) and carbon monoxide (12CO, 13CO, 12C18O). The flexible and compact fiber-optic tunable diode laser absorption spectrometer (TDLAS) allows selective measurements of CO2 and CO with high isotopic resolution without sample preparation since there is no interference with water vapour. For each species, linear calibration plots with a dynamic range of four orders of magnitude and detection limits (LOD) in the range of a few ppm were obtained utilizing wavelength modulation spectroscopy (WMS) with balanced detection in a Herriott-type multipass cell. The high performance of the apparatus is illustrated by fill-evacuation-refill cycles.}, subject = {Isotop}, language = {en} }