Femtosecond laser heating of multi-layer metals—II. Experiments

Autor:	Chuen-Lin Tien, T.Q. Qiu, Tibor Juhasz, Carlos G. Suarez, Walter E. Bron
Rok vydání:	1994
Předmět:	Fluid Flow and Transfer Processes Free electron model Gold layer Materials science Mechanical Engineering chemistry.chemical_element Condensed Matter Physics Molecular physics Metal Chromium chemistry Lattice (order) visual_art Femtosecond visual_art.visual_art_medium Laser heating Multi layer
Zdroj:	International Journal of Heat and Mass Transfer. 37:2799-2808
ISSN:	0017-9310
DOI:	10.1016/0017-9310(94)90397-2
Popis:	Femtosecond thermoreflectivity experiments are performed to investigate energy deposition and transport during the very early period of short-pulsed laser heating of gold and chromium multi-layer metal films. The chromium layer underneath the top gold layer is found to produce significant effects on the laser-energy deposition process. Experimental results show that radiation absorption by free electrons and the subsequent heating of the lattice occur not only at different times but also at different locations in a multi-layer metal film. The conventional radiation heating model fails to predict these results, and a more rigorous two-step model agrees well with the measured data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb43e6ff564cb7b23920fe105e3d2162 https://doi.org/10.1016/0017-9310(94)90397-2 Zobrazit plný text záznamu