中国物理B ›› 2017, Vol. 26 ›› Issue (11): 116504-116504.doi: 10.1088/1674-1056/26/11/116504

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Temperature-induced effect on refractive index of graphene based on coated in-fiber Mach-Zehnder interferometer

Li-Jun Li(李丽君), Shun-Shun Gong(宫顺顺), Yi-Lin Liu(刘仪琳), Lin Xu(徐琳), Wen-Xian Li(李文宪), Qian Ma(马茜), Xiao-Zhe Ding(丁小哲), Xiao-Li Guo(郭晓丽)   

  1. 1. College of Electronics, Communication and Physics, Shandong University of Science and Technology, Qingdao 266590, China;
    2. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China;
    3. College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China
  • 收稿日期:2017-06-26 修回日期:2017-07-27 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:
    Project supported by the Shandong Provincial Natural Science Foundation of China (Grant Nos. ZR2009AM017 and ZR2013FM019), the National Postdoctoral Project of China (Grant Nos. 200902574 and 20080441150), the Shandong Provincial Education Department Foundation of China (Grant No. J06P14), and the Opening Foundation of State Key Lab of Minning Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology of China (Grant No. MDPC201602).

Temperature-induced effect on refractive index of graphene based on coated in-fiber Mach-Zehnder interferometer

Li-Jun Li(李丽君)1,2,3, Shun-Shun Gong(宫顺顺)1, Yi-Lin Liu(刘仪琳)1, Lin Xu(徐琳)1, Wen-Xian Li(李文宪)1, Qian Ma(马茜)3, Xiao-Zhe Ding(丁小哲)1, Xiao-Li Guo(郭晓丽)1   

  1. 1. College of Electronics, Communication and Physics, Shandong University of Science and Technology, Qingdao 266590, China;
    2. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China;
    3. College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China
  • Received:2017-06-26 Revised:2017-07-27 Online:2017-11-05 Published:2017-11-05
  • Contact: Li-Jun Li E-mail:nankaillj@163.com
  • Supported by:
    Project supported by the Shandong Provincial Natural Science Foundation of China (Grant Nos. ZR2009AM017 and ZR2013FM019), the National Postdoctoral Project of China (Grant Nos. 200902574 and 20080441150), the Shandong Provincial Education Department Foundation of China (Grant No. J06P14), and the Opening Foundation of State Key Lab of Minning Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology of China (Grant No. MDPC201602).

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摘要： The temperature-induced complex refractive index (CRI) effect of graphene is demonstrated theoretically and experimentally based on a graphene coated in-fiber MZI (Mach-Zehnder interferometer). The relationships between real and imaginary parts of the graphene CRI and temperature are obtained through investigating the dip wavelength and intensity of the MZI interference spectrum changing with temperature, respectively. The temperature effect of CRI of the graphene is also analyzed theoretically. Both experimental and theoretical studies show that the real part and imaginary part of the CRI nonlinearly decrease and increase with temperature increasing, respectively. This graphene-coated in-fiber MZI structure also possesses the advantages of easy fabrication, miniaturization, low cost and robustness. It has potential applications in nanomaterial-based optic devices for communication and sensing.

关键词: in-fiber Mach-Zehnder interferometer, graphene, temperature-induced, complex refractive index

Abstract: The temperature-induced complex refractive index (CRI) effect of graphene is demonstrated theoretically and experimentally based on a graphene coated in-fiber MZI (Mach-Zehnder interferometer). The relationships between real and imaginary parts of the graphene CRI and temperature are obtained through investigating the dip wavelength and intensity of the MZI interference spectrum changing with temperature, respectively. The temperature effect of CRI of the graphene is also analyzed theoretically. Both experimental and theoretical studies show that the real part and imaginary part of the CRI nonlinearly decrease and increase with temperature increasing, respectively. This graphene-coated in-fiber MZI structure also possesses the advantages of easy fabrication, miniaturization, low cost and robustness. It has potential applications in nanomaterial-based optic devices for communication and sensing.

Key words: in-fiber Mach-Zehnder interferometer, graphene, temperature-induced, complex refractive index

中图分类号:  (Thermal properties of graphene)

  • 65.80.Ck
68.65.Pq (Graphene films) 78.67.Wj (Optical properties of graphene) 42.81.-i (Fiber optics)