Fine-structure rotational coherent anti-Stokes Raman scattering in iron vapor
Year: 2025
Type: article
Abstract: Spontaneous and coherent Raman scattering can be used to perform atomic spectroscopy by probing the fine structure of the target atom's electronic configuration arising from spin-orbit coupling. We report the first, to the best of our knowledge, application of CARS spectroscopy to a transition metal: iron. Iron vapor is produced by laser ablation of a pure iron sample, and a tunable nanosecond CARS instrument is used to detect four Raman transitions between the fine-structure energy levels in the ground-state electronic configuration of neutral iron atoms. These results extend atomic CARS beyond previously studied chalcogens and halogen elements and enable its application to the study of metal chemistry.
Source: Optics Letters
DOI: 10.1364/ol.576372
Authors: Francesco Mazza, Ashutosh Jena, Abhishek Kushwaha, Ali Hosseinnia, Isaac Boxx
Language: English
Subfield: Biophysics
Domain: Life Sciences
Open Access status: gold
OpenAlex ID: W4413363585