Mr. Guohua Hou Profile

Guohua Hou

at Harbin Engineering Univ

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Proceedings Article | 30 November 2011 Paper

The simulation research of multi-core optical fiber near-field optical tweezers

Guohua Hou, Zhihai Liu

Proceedings Volume 8202, 82020K (2011) https://doi.org/10.1117/12.905308

KEYWORDS: Optical tweezers, Near field, Optical fibers, Near field optics, Particles, Optical simulations, Interfaces, Metals, Structured optical fibers, Reflection

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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.

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