Laser Shock Wave Induced Crystallization
Laser Shock Wave Induced Crystallization
复制标题
DOI：
10.1021/acs.cgd.6b01437
复制
发表时间：
2017-02-01
影响因子：
3.8
通讯作者：
Compton, Robert N.
中科院分区：
文献类型：
--
作者：
Mirsaleh-Kohan, Nasrin;Fischer, Andrew;Compton, Robert N.
研究了由高强度聚焦激光脉冲产生的强声波或冲击波在饱和溶液和饱和溶液中晶体的形成。在整个溶液中，激光产生的声波会立即产生许多微小的晶体。压缩波可以通过聚焦在液体内或在容器的壁上产生。这种新方法允许瞬间形成许多“种子”晶体，然后这些晶体可用于进一步的无杂质晶体生长。更重要的是，微小的“婴儿”晶体可以在完全长成“成年”晶体之前被收获。这种方法被证明可以产生足够的“婴儿”晶体，让我们可以使用现代显微镜技术，如扫描电子显微镜，对晶体生长的初始阶段一瞥。用这种新方法成功地结晶了简单的盐，如溴酸钠、氯化钠、氯酸钠和酒石酸。这种晶体生长方法还可以产生以前没有实现或以其他方式难以生产的晶体。
Formation of crystals in saturated and under saturated solutions is studied as a result of intense sound, or shock waves, produced by high intensity focused laser pulses. Many tiny crystals are created immediately throughout the solution by the laser-generated sound waves. The compression waves can be created by focusing within the liquid or onto the walls of a container. This new method allows for the instantaneous formation of many "seed" crystals, which are then available for further impurity-free crystal growth. More importantly, the tiny "baby" crystals can be harvested before complete growth into "adult" crystals can occur. This method is shown to produce enough "baby" crystals to provide a glimpse into the initial stages of crystal growth using modern microscopy techniques such as SEM. By employing this new method, simple salts such as sodium bromate, sodium chloride, sodium chlorate, and tartaric acid were successfully crystallized. This method of crystal growth may also allow for the generation of crystals which have previously not been realized or are otherwise difficult to produce.