Frequency-comb-referenced mid-IR sources for next-generation environmental sensors

Year: 2011

Authors: Cancio P., Bartalini S., Borri S., Galli I., Gagliardi G., Giusfredi G., Maddaloni P., Malara P., Mazzotti D., De Natale P.

Autors Affiliation: Istituto Nazionale di Ottica (INO)-CNR, Largo Fermi 6, Firenze 50125, Italy; European Laboratory for Nonlinear Spectroscopy (LENS), Via Carrara 1, Sesto Fiorentino 50019, Italy; Istituto Nazionale di Ottica (INO)-CNR, Via Campi Flegrei 34, Pozzuoli 80078, Italy

Abstract: We report on recent development of IR spectrometers based on non-linear optical generation and quantum-cascade lasers. Frequency stabilization and referencing to optical frequency-comb synthesizers is described. Their characteristics for spectroscopic as well as metrological applications are pointed out. The potential of the combination of mid-IR sources with enhancement cavities for high-resolution and sensitive measurements of gas spectra is illustrated. Finally, we describe wave-front engineering of long wavelength beams for spatial control and imaging applications.


Volume: 102 (2)      Pages from: 255  to: 269

More Information: This work was partially supported by Ente Cassa di Risparmio di Firenze and by CNR and the other European research funding Agencies participating to the European Science Foundation EUROCORES Program EUROQUAMCIGMA.
KeyWords: Environmental sensor; Frequency stabilization; High resolution; Imaging applications; IR source; Long wavelength; Metrological applications; Non-linear optical; Optical frequency combs; Sensitive measurement; Spatial control, Quantum cascade lasers, Spectrometers
DOI: 10.1007/s00340-010-4216-2

Citations: 27
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