Zhao Xing, Sun Yuyang, Bu Jing, Zhu Siwei, Yuan X-C
Institute of Modern Optics, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education of China, Nankai University, Tianjin 300071, China.
Appl Opt. 2011 Jan 20;50(3):318-22. doi: 10.1364/AO.50.000318.
An on-chip optical trapping and sorting system composed of a microchamber and a microlens array (MLA) is demonstrated. The MLA focuses the incident light into multiple confocal spots to trap the particles within the microchamber. The SiO(2)/ZrO(2) solgel material is introduced in the fabrication of MLA for its unique optical and chemical characters. Moreover, in order to prove the effectiveness of the system, experimental demonstration of multibeam trapping and locked-in transport of micropolymer particles in the microchamber is implemented. The system may easily be integrated as microfluidic devices, offering a simple and efficient solution for optical trapping and sorting of biological particles in lab-on-a-chip technologies.
展示了一种由微腔和微透镜阵列（MLA）组成的片上光阱和分选系统。微透镜阵列将入射光聚焦成多个共焦光斑，以捕获微腔内的粒子。在微透镜阵列的制造中引入了SiO(2)/ZrO(2)溶胶凝胶材料，因其独特的光学和化学特性。此外，为了证明该系统的有效性，对微腔内的微聚合物颗粒进行了多光束捕获和锁定传输的实验演示。该系统可以很容易地集成到微流控设备中，为芯片实验室技术中生物颗粒的光阱和分选提供了一种简单有效的解决方案。
