Method for continuously separating moving micro-droplets based on y-cut lithium niobate chip of sandwich structure

The invention discloses a method for continuously separating moving micro-droplets based on a y-cut lithium niobate chip of a sandwich structure. According to the method, the sandwich structure comprising a y-cut lithium niobate wafer serves as a core, continuous separation of the micro-droplets in an interlayer is realized through a superposed electric field formed by intermittent laser irradiation, the problem that the micro-droplets are not easy to separate after polarization is solved, and the micro-droplets in different sizes can be separated according to the laser power size and the intermittent irradiation distance. The method can be applied to transportation and separation of trace reagents, and has important significance in the development of the fields such as biomedicine, drug diagnosis, environmental monitoring and molecular biology. 本发明公开了一种基于y切铌酸锂夹层结构芯片的运动微液滴连续分离方法，该方法以y切铌酸锂晶片组成的夹层结构为核心，利用激光间断照射形成的叠加的电场实现夹层中微液滴的连续分离，解决了微液滴经过极化不易继续分离的问题，并且通过激光功率大小和间断照射距离可以实现对不同尺寸微液滴的分离。该技术可应用于微量试剂的运输和分离，对生物医疗、药物诊