Graphitized Layer Buried in a Diamond: SAW Generation under Picosecond Optical Excitation

3rd International Symposium on Laser Ultrasonics and Advanced Sensing

Klokov, A.^1 ; Tsvetkov, V.^1 ; Sharkov, A.^1 ; Aminev, D.^1 ; Khmelnitskiy, R.^1

P.N.Lebedev Physical Institute, Moscow, Russia^1

关键词: Graphitized layers;    Implantation dose;    Ion implanted;    Picoseconds;    Spectral widths;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/520/1/012006/pdf
DOI  :  10.1088/1742-6596/520/1/012006

来源: IOP

【 摘 要 】

The excitation of SAW was detected on diamond with built-in ion-implanted graphitized layer under its illumination with femtosecond laser pulses. The spectral width of a SAW pulses were in the range of 1.5÷2 GHz. It was found out that the anisotropy of the SAW propagation was practically absent. The increase in the implantation dose from 4·1015cm-2to 12·1015cm-2was shown to give rise to a dispersion of SAW propagation.