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

Spectra of spontaneous Raman scattering in taper-drawn micro/nano-fibers

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)   

  1. 1. College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Key Laboratory of Optoelectronics Information Technology of Ministry of Education, Tianjin 300072, China;
    2. Joint Institute for Measurement Science, Tsinghua University, Beijing 100084, China;
    3. Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2016-07-05 修回日期:2016-08-29 出版日期:2016-12-05 发布日期:2016-12-05
  • 通讯作者: Liang Cui, Xiaoying Li E-mail:lcui@tju.edu.cn;xiaoyingli@tju.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11304222 and 11527808) and the State Key Development Program for Basic Research of China (Grant No. 2014CB340103).

Spectra of spontaneous Raman scattering in taper-drawn micro/nano-fibers

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   

  1. 1. College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Key Laboratory of Optoelectronics Information Technology of Ministry of Education, Tianjin 300072, China;
    2. Joint Institute for Measurement Science, Tsinghua University, Beijing 100084, China;
    3. Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2016-07-05 Revised:2016-08-29 Online:2016-12-05 Published:2016-12-05
  • Contact: Liang Cui, Xiaoying Li E-mail:lcui@tju.edu.cn;xiaoyingli@tju.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11304222 and 11527808) and the State Key Development Program for Basic Research of China (Grant No. 2014CB340103).

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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.

关键词: nonlinear optics, micro/nano-fibers, Raman scattering

Abstract:

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.

Key words: nonlinear optics, micro/nano-fibers, Raman scattering

中图分类号:  (Nonlinear optics)

  • 42.65.-k
42.81.Qb (Fiber waveguides, couplers, and arrays) 78.30.-j (Infrared and Raman spectra)