Measuring Part-per-Billion Line Shifts and Frequencies with Direct-Frequency-Comb Vernier Spectroscopy
Year: 2015
Authors: Cancio P., Siciliani de Cumis M., Eramo R., De Natale P., Coluccelli N., Cassinerio M., Galzerano G., Laporta P.
Autors Affiliation: Istituto Nazionale di Ottica-CNR, European Laboratory for Non-linear Spectroscopy, Via N. Carrara 1, Sesto Fiorentino, Italy; Dipartimento di Fisica-Politecnico di Milano, Istituto di Fotonica e Nanotecnologie-CNR, Piazza Leonardo da Vinci 32, Milano, Italy
Abstract: Accurate frequency measurements of CO2 transitions around 2 mm are performed by direct frequency-comb Vernier spectroscopy. Measurements of pressure line shifts at the ppb. accuracy level demonstrates the application of comb sources in precision molecular spectroscopy.
Conference title: 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
Place:
KeyWords: comb spectroscopy