中国物理B ›› 2016, Vol. 25 ›› Issue (12): 124205-124205.doi: 10.1088/1674-1056/25/12/124205
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Yingxin Xu(徐颖鑫), Liang Cui(崔亮), Xiaoying Li(李小英), Cheng Guo(郭骋), Yuhang Li(李宇航), Zhongyang Xu(徐忠扬), Lijun Wang(王力军), Wei Fang(方伟)
Yingxin Xu(徐颖鑫)3, Liang Cui(崔亮)1, Xiaoying Li(李小英)1, Cheng Guo(郭骋)1, Yuhang Li(李宇航)2, Zhongyang Xu(徐忠扬)2, Lijun Wang(王力军)2, Wei Fang(方伟)3
摘要:
We study the spontaneous Raman scattering (RS) in taper-drawn micro/nano-fibers (MNFs) by employing the photon counting technique. The spectra of RS in five MNFs, which are fabricated by using different heating flames (hydrogen flame or butane flame) and with different diameters, are measured within a frequency shift range of 1435 cm-1-3200 cm-1. From the measured spectra, we observe the RS peaks originated from silica and a unique RS peak with a frequency shift of ~2905 cm-1 (~87.2 THz). Unlike the former ones, the latter one is not observable in conventional optical fibers. Furthermore, the unique peak becomes obvious and starts to rapidly increase with the decrease of the diameter of MNFs when the diameter is smaller than 2 μm, and the intensity of the unique peak significantly depends on the heating flame used in the fabricating process. Our investigation is useful for the entanglement generation or optical sensing using taper-drawn MNFs.
中图分类号: (Nonlinear optics)