title: Doppler-free polarization spectroscopy with a quantum cascade laser at 4.3 microm.
abstract: We report on what we believe to be the first Doppler-free polarization spectroscopy with a quantum cascade laser. A hot-band CO(2) transition around 4.3 microm wavelength has been used to test the potential of the technique for high-resolution spectroscopy and wide-bandwidth quantum cascade laser frequency stabilization.
authors.affiliation: Istituto Nazionale di Ottica Applicata (INOA)-CNR, Firenze, Italy. saverio.bartalini@inoa.it
authors.forename: S
authors.initials: S
authors.lastname: Bartalini
authors.forename: S
authors.initials: S
authors.lastname: Borri
authors.forename: P
authors.initials: P
authors.lastname: De Natale
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013057:Spectrum Analysis / Q000295:instrumentation*