@article{6100,
  author = {R. Peeters and G. Berden and A. Olafsson and L. J. J. Laarhoven and G. Meijer},
  title = {Cavity enhanced absorption spectroscopy in the 10 mu m region using a waveguide CO2 laser},
  abstract = {The cavity enhanced absorption (CEA) technique is extended into the 10 mum region using a line-tunable continuous wave CO2 laser. Part of the laser beam is deflected by an acousto-optical modulator (AOM), and is used to excite a mechanically unstable high-finesse optical cavity. In order to assure a stable and optimal transmittance of light through the cavity, the laser frequency and the cavity eigenfrequencies are modulated independently. The time-integrated intensity of the light exiting the cavity, which is inversely proportional to the cavity losses, is measured using a lock-in detection scheme. An absorption detection sensitivity of 1.5 x 10(-6) cm(-1) Hz(-1/2) is readily obtained with a rather simple setup. (C) 2001 Elsevier Science B.V. All rights reserved.},
  year = {2001},
  journal = {Chemical Physics Letters},
  volume = {337},
  number = {4-6},
  pages = {231-236},
  month = {Apr 6},
  isbn = {0009-2614},
  doi = {10.1016/s0009-2614(01)00217-2},
  language = {eng},
}