2006/11/02 by Muneaki Hase, Jure Demsar, J. Demšar +1 · 1 citation
Engineering · Physics and Astronomy · #Advanced Chemical Physics Studies #Laser-Matter Interactions and Applications #Molecular Junctions and Nanostructures #cond-mat.other #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.74.212301
published as Phys. Rev. B, Vol. 74, 212301 (2006) · 5 pages, 3 figures, to be published in Physical Review B
arxiv created 2006/11/02 · openalex publication_date 2006/12/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Utilizing femtosecond optical pump-probe technique, we have studied transient Fano resonance in zinc. At high excitation levels the Fourier spectrum of the coherent E2g phonon exhibits strongly asymmetric line shape, which is well modeled by the Fano function. The Fano parameter (1∕Q) was found to be strongly excitation fluence dependent while depending weakly on the initial lattice temperature. We attribute the origin of the Fano resonance to the coupling of a coherent phonon to the electronic continuum, with their transition probabilities strongly renormalized in the vicinity of the photoinduced structural transition.