We present a new generation of compact and rugged mid-infrared (MIR) difference-frequency coherent radiation sources referenced to fiber-based optical frequency comb synthesizers (OFCSs). By coupling the MIR radiation to high-finesse optical cavities, high-resolution and high-sensitivity spectroscopy is demonstrated for CH4 and CO2 around 3.3 and 4.5 µm respectively. Finally, the most effective detection schemes for space-craft trace-gas monitoring applications are singled out.

Comb-referenced ultra-high sensitivity spectroscopic molecular detection by compact non-linear sources

Cancio P;Gagliardi G;Galli I;Giusfredi G;Maddaloni P;Malara P;Mazzotti D;De Natale P
2017

Abstract

We present a new generation of compact and rugged mid-infrared (MIR) difference-frequency coherent radiation sources referenced to fiber-based optical frequency comb synthesizers (OFCSs). By coupling the MIR radiation to high-finesse optical cavities, high-resolution and high-sensitivity spectroscopy is demonstrated for CH4 and CO2 around 3.3 and 4.5 µm respectively. Finally, the most effective detection schemes for space-craft trace-gas monitoring applications are singled out.
2017
Istituto Nazionale di Ottica - INO
Istituto Nazionale di Ottica - INO - Sede Secondaria di Sesto Fiorentino
Istituto Nazionale di Ottica - INO - Sede Secondaria di Pozzuoli
9781510616233
difference-frequency generation
high-sensitivity gas sensing
optical frequency comb
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/428564
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