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Doppler-free polarization spectroscopy with a quantum cascade laser at 4.3 microm
S Bartalini1, S Borri, P De Natale
1Istituto Nazionale di Ottica Applicata (INOA)-CNR, Firenze, Italy. saverio.bartalini@inoa.it
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.
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