论文标题
平面外纵向声音速度sns $ _2 $通过宽带时间域Brillouin散射确定
Out-of-plane longitudinal sound velocity in SnS$_2$ determined via broadband time-domain Brillouin scattering
论文作者
论文摘要
在这里，我们报告了以SNS $ _2 $的单晶进行的时间分辨宽带瞬态反射率测量。我们利用时间域的布里鲁因散射和宽带探测器来测量平面外纵向声音速度$ v_l $ =（2950 $ \ pm $ 100）m s $ s $^{ - 1} $，在这项半导体的二维过渡金属二甲基二甲级化合物中。我们的研究说明了这种非侵入性全光泵探针技术的潜力，用于研究透明脆性材料的弹性性能，并提供了弹性常数$ c_ {33} $ =（39 $ \ pm $ 3）GPA的值。
Here we report time-resolved broadband transient reflectivity measurements performed in a single crystal of SnS$_2$. We made use of time-domain Brillouin scattering and a broadband probe to measure the out-of-plane longitudinal sound velocity $v_L$ = (2950 $\pm$ 100) m s$^{-1}$, in this semiconducting two-dimensional transition metal dichalcogenide. Our study illustrates the potential of this non-invasive all-optical pump-probe technique for the study of the elastic properties of transparent brittle materials and provides the value of the elastic constant $c_{33}$ = (39 $\pm$ 3) GPa.
