中国物理B ›› 2010, Vol. 19 ›› Issue (4): 47103-047103.doi: 10.1088/1674-1056/19/4/047103

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

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

张美艳, 李曙光, 姚艳艳, 付博, 张磊   

  1. Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China
  • 收稿日期:2009-07-11 修回日期:2009-08-23 出版日期:2010-04-15 发布日期:2010-04-15
  • 基金资助:
    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, Chin

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

Zhang Mei-Yan(张美艳), Li Shu-Guang(李曙光), Yao Yan-Yan(姚艳艳), Fu Bo(付博), and Zhang Lei(张磊)   

  1. Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China
  • Received:2009-07-11 Revised:2009-08-23 Online:2010-04-15 Published:2010-04-15
  • Supported by:
    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, Chin

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.

Abstract: 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.

Key words: liquid-filled photonic crystal fibre, fundamental mode, dark hollow beam

中图分类号:  (Other fiber-optical devices)

  • 42.81.Wg
42.70.Qs (Photonic bandgap materials) 37.10.Vz (Mechanical effects of light on atoms, molecules, and ions)