All-fiber self-accelerating Bessel-like beam generator and its application

作者：Liu, Zhihai; Zhang, Yaxun; Zhang, Yu; Liang, Peibo; Yang, Jun; Yuan, Libo

来源：Optics Letters, 2014, 39(21): 6185-6188.

DOI：10.1364/OL.39.006185

• ARBITRARY TRAJECTORIES
• OPTICAL BEAMS
• AIRY BEAMS

We demonstrate an all-fiber transverse self-accelerating Bessel-like beam generator and its optical trapping application. The theoretical and experimental studies have been provided to verify this beam properties. We produce the Bessel-like beam by splicing the single-mode fiber and multimode fiber with a defined offset and then modulating the output light beam phase by fabricating a small hemispherical-lens fiber tip; therefore, the phase-modulated Bessel-like beam generates the properties of transverse self-accelerating. The transverse acceleration of the the Bessel-like beam generated here is similar to 10(-4) mu m(-1), which is almost 100 times larger than that of the beam generated in the free-space optical circuit based on the lens. The experimental and simulated results have good consistencies. The realization of the microparticle transverse acceleration transporting with this Bessel-like beam provides a new method for microparticles to be transported in a bending trajectory. This all-fiber transverse self-accelerating Bessel-like beam generator structure is simple, with high integration and small size, and constitutes a new development for high-precision biological cell experiments and manipulations.

• 出版日期2014-11-1
• 单位哈尔滨工程大学