A dark hollow beam from a selectively liquid-filled photonic crystal fibre

作     者：张美艳 李曙光 姚艳艳 付博 张磊 

作者机构：Key Laboratory of Metastable Materials Science and TechnologyCollege of ScienceYanshan University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2010年第19卷第4期

页      面：339-344页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 070207[理学-光学] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0814[工学-土木工程] 0702[理学-物理学] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：Project supported in part by the National Natural Science Foundation of China(Grant No.10874145) the Specialized Research Fund for Doctorial Program of Higher Education(Grant No.20091333110010) the Natural Science Foundation of Heibei Province, China(Grant No.F2009000481) the China Postdoctoral Science Foundation(Grant Nos.20080440014 and 200902046) 

主　　题：liquid-filled photonic crystal fibre fundamental mode dark hollow beam 

摘      要：This paper reports that, based on the electromagnetic scattering theory of the multipole method, a high-quality hollow beam is produced through a selectively liquid-filled photonic crystal fibre. Instead of a doughnut shape, a typical hollow beam is produced by other methods; the mode-field images of the hollow-beam photonic crystal fibre satisfy sixth-order rotation symmetry, according to the symmetry of the photonic crystal fibre （PCF） structure. A dark spot size of the liquid-filled photonic crystal fibre-generated hollow beam can be tuned by inserting liquid into the cladding region and varying the photonic crystal fibre structure parameters. The liquid-filled PCF makes a convenient and flexible tool for the guiding and trapping of atoms and the creation of all-fibre optical tweezers.