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.
High-precision molecular spectroscopy in the mid-infrared using quantum cascade lasers / 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.. - In: APPLIED PHYSICS. B, LASERS AND OPTICS. - ISSN 0946-2171. - ELETTRONICO. - 125:(2019), pp. 18.0-18.0. [10.1007/s00340-018-7119-2]
High-precision molecular spectroscopy in the mid-infrared using quantum cascade lasers
Insero G.;Cappelli F.;
2019
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.
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