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Is the ultra-fast transformation of bismuth non-thermal?
- Publication Year :
- 2009
-
Abstract
- Transient state of femtosecond laser excited bismuth has been studied by various groups with time-resolved optical, x-ray, and electron probes at the deposited energy density from below through up to several times the equilibrium enthalpy of melting. However, the interpretations of the experimental results are controversial: the optical probes reveal the absence of transition to the melting phase while the authors of x-ray and electron diffraction experiments claim the observation of ultrafast non-thermal melting. The presented analysis, based on temperature dependence of bismuth optical properties, unequivocally shows a purely thermal nature of all the observed fs-laser induced transformations in bismuth.<br />Comment: 20 pages, 6 figures, to be presented at the Conference on Laser Ablation COLA'2009, Singapore, 21-26 November 2009
- Subjects :
- Physics - Optics
Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.0910.2150
- Document Type :
- Working Paper