High-precision molecular spectroscopy in the mid-infrared using quantum cascade lasers

Year: 2019

Authors: Borri S., Insero G., Santambrogio G., Mazzotti D., Cappelli F., Galli I., Galzerano G., Marangoni M., Laporta P., Di Sarno V., Santamaria L., Maddaloni P., De Natale P.

Autors Affiliation: CNR-INO, Istituto Nazionale di Ottica; INFN, Istituto Nazionale di Fisica Nucleare, Sez. di Firenze; Joint Research Centre – EU Science Hub; INRIM, Istituto Nazionale di Ricerca Metrologica; CNR-IFN, Istituto di Fotonica e Nanotecnologie
Dipartimento di Fisica-Politecnico di Milano; INFN, Istituto Nazionale di Fisica Nucleare, Sez. di Napoli; ASI, Agenzia Spaziale Italiana, Centro di Geodesia Spaziale

Abstract: Quantum cascade lasers (QCLs) are becoming a key tool in several advanced experiments in the field of precision molecular spectroscopy and absolute frequency metrology. In view of this, a thorough control of their emission properties must be achieved, including a narrow linewidth as well as a high frequency-stability combined with referencing to a primary standard. Here, we give a review on recent developments and next perspectives in this scope, with particular regard to the use of QCLs in fundamental physics spectroscopic searches.

Journal/Review: APPLIED PHYSICS B-LASERS AND OPTICS

Volume: 125 (1)      Pages from: 18-1  to: 18-9

KeyWords: laser spectroscopy, frequency metrology, quantum cascade laser, high-precision spectroscopy
DOI: 10.1007/s00340-018-7119-2

Citations: 34
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