Fiber Optical Tweezers for the Operation of Particles

We take example by the fabrication of nano-probe chemical etching process to make optical tapered fiber, and we use the semiconductor laser as the light source to design a single-fiber optical tweezers system, thus achieve the capture of yeast cells and the thrust of hollow glass beads. At the same time, we use FDTD method to simulate the force analysis of the yeast and hollow glass beads in Gaussian light field. The optical tweezers system has concise structure; the preparation of optical tweezers is simple and flexible. It´s easy to achieve non-contact operation of biological cells, extended to the micro-operation of other particles and of some significance in materials and biological research field.