ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The ultimate goals of this study are to investigate numerically nonequilibrium energytransfer between electrons and phonons, and to predict the crater formation shapes of gold thin filmstructures irradiated by femtosecond pulse lasers. In particular, the present article expands the onedimensionaltwo-temperature model (1DTTM) to the two-dimensional model (2DTTM) consideringwave interference, and it involves the quantum effect to predict thermal and optical properties. Thepredictions by using 2DTTM are extensively compared with those of 1DTTM, and the influence offilm thickness on radiation heat transfer and optical characteristics are also examined. From theresults, it is found that the predictions of 2DTTM are in good agreement with those of 1DTTM. Asthe gold film thickness decreases, the reflectivity decreases dramatically and the absorbed laserintensities at the top surface increases substantially because of wave interference in thin films
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.580-582.143.pdf
