Proc. SPIE. 8202, 2011 International Conference on Optical Instruments and Technology: Solid State Lighting and Display Technologies, Holography, Speckle Pattern Interferometry, and Micro/Nano Manufacturing and Metrology
KEYWORDS: Optical fibers, Reflection, Metals, Particles, Interfaces, Structured optical fibers, Near field, Optical tweezers, Optical simulations, Near field optics
In order to develop the near- field optical tweezers with perfect function , We design the near-field optical fiber optical
tweezers basing on the multi-core of the optical fiber. Combining the total internal reflection and multi-core optical
fiber, we form evanescent wave on the fiber water interface forming , and realize the capture of object .It can separate the
near-field optical tweezers and its control from the microscopic observation system effectively, so It enhance the
operability of near-field optical tweezers and the ability of active capture greatly. The Multi-core optical fiber constitutes
the Near-field optical tweezers, the superposition of the coherent light from opposite transmission forms a area of capture.
Interference effect makes light intensely, at the same time the capture space becomes more and more narrow. They can
improve the capture function of the new generation of all-fiber near-field optical tweezers greatly. And we quantitatively
calculating the optical trap force of the micron-grade particle. In this passage, there is a new progress in setting up the
near field optical tweezers' model and the calculation method. Moreover, it improves the using value of the near field
optical tweezers technology in the life sciences.