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Phase transformation on and charged particle emission from a silicon crystal surface, induced by picosecond laser pulses

 

作者: J. M. Liu,   R. Yen,   H. Kurz,   N. Bloembergen,  

 

期刊: Applied Physics Letters  (AIP Available online 1981)
卷期: Volume 39, issue 9  

页码: 755-757

 

ISSN:0003-6951

 

年代: 1981

 

DOI:10.1063/1.92843

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Ultrafast melting and resolidification on a (111) sufarce of a silicon crystal wafer, induced by 20‐ps pulses at 532‐nm wavelength, is accompanied by the emission of charged particles. This emission is studied as a function of pulse energy, in combination with time‐resolved reflectivity changes and post‐annealing morphology. The data provide evidence that thermalization time for a dense carrier plasma and the lattice is shorter than 10−11s.

 

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