کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1665845 | 1518056 | 2013 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Rapid phase change induced by double picosecond laser pulses and the dynamics of acoustic phonons Rapid phase change induced by double picosecond laser pulses and the dynamics of acoustic phonons](/preview/png/1665845.png)
• The double pulse crystallization is easier than the single pulse crystallization.
• The crystallization is a function of the intervals of double pump laser pulses.
• The crystallization time decreases with the increase of the pump pulse intervals.
• Acoustic phonons play a key role in the crystallization process.
For a given phase change material and composition, the double laser pulses better than a single pulse for the crystallization process. We investigated the crystallization process in Si15Sb85 thin films induced by double picosecond pulses with constant fluence and variable intervals. The crystallization degree is a function of the intervals of double pump laser pulses. The crystallization time decreased with the increasing of the intervals of the pump pulses. We believe that acoustic phonons play a key role in the crystallization process.
Journal: Thin Solid Films - Volume 548, 2 December 2013, Pages 449–452