Fano resonance in molecular spectroscopy is reported with a dual-comb instrument. The effect is observed as asymmetric absorption lines of H12CN. Pulse chirping conditions in the gas cell are varied to show that Fano resonance is dependent on the pulse peak power. A model adding the Fano profile to Voigt lines is used to estimate Fano phase as a function of pulse peak power. A pulse peak power condition is derived from this analysis to avoid line shape distortion in pulsed laser experiments.
Bibliographical noteKAUST Repository Item: Exported on 2022-09-14
Acknowledged KAUST grant number(s): OSR-CRG2019-4046
Acknowledgements: Natural Sciences and Engineering Research Council of Canada; Global Collaborative Research, King Abdullah University of Science and Technology (OSR-CRG2019-4046).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics