Fourier optics along a hybrid optical fiber for Bessel-like beam generation and its applications in multiple-particle trapping

[摘要]：Highly efficient Bessel-like beam generation was achieved based on a new all-fiber method that implements Fourier transformation of a micro annular aperture along a concatenated composite optical fiber. The beam showed unique characteristics of tilted washboard optical potential in the transverse plane and sustained a nondiffracting length over 400 mu m along the axial direction. Optical trapping of multiple dielectric particles and living Jurkat cells were successfully demonstrated along the axial direction of the beam in the water. (C) 2012 Optical Society of America

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