中国物理B ›› 2018, Vol. 27 ›› Issue (12): 126304-126304.doi: 10.1088/1674-1056/27/12/126304

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

Multilayer graphene refractive index tuning by optical power

Lijun Li(李丽君), Yilin Liu(刘仪琳), Yinming Liu(刘荫明), Lin Xu(徐琳), Fei Yu(于飞), Tianzong Xu(徐天纵), Zhihui Shi(石志辉), Weikang Jia(贾伟康)   

  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 Cofounded 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;
    4 Library, Shandong University of Science and Technology, Qingdao 266590, China
  • 收稿日期:2018-09-25 修回日期:2018-10-16 出版日期:2018-12-05 发布日期:2018-12-05
  • 通讯作者: Lijun Li E-mail:nankaillj@163.com
  • 基金资助:

    Project supported by the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2009AM017 and ZR2013FM019), the National Postdoctoral Project of China (Grant Nos. 200902574 and 20080441150), the Fund from the Educational Department of Shandong Province, China (Grant No. J06P14), and the Opening Foundation of State Key Laboratory of Minning Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology of China (Grant No. MDPC201602).

Multilayer graphene refractive index tuning by optical power

Lijun Li(李丽君)1,2,3, Yilin Liu(刘仪琳)1, Yinming Liu(刘荫明)4, Lin Xu(徐琳)1, Fei Yu(于飞)1, Tianzong Xu(徐天纵)3, Zhihui Shi(石志辉)1, Weikang Jia(贾伟康)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 Cofounded 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;
    4 Library, Shandong University of Science and Technology, Qingdao 266590, China
  • Received:2018-09-25 Revised:2018-10-16 Online:2018-12-05 Published:2018-12-05
  • Contact: Lijun Li E-mail:nankaillj@163.com
  • Supported by:

    Project supported by the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2009AM017 and ZR2013FM019), the National Postdoctoral Project of China (Grant Nos. 200902574 and 20080441150), the Fund from the Educational Department of Shandong Province, China (Grant No. J06P14), and the Opening Foundation of State Key Laboratory of Minning Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology of China (Grant No. MDPC201602).

摘要:

Graphene's optical absorption coefficient increases linearly with the number of layers making it more effective in the construction of optical tuning graphene-based devices. Refractive index (RI) is one of the important optical parameters of the graphene for accurately describing its optical characteristics and further applications. In view of the RI research of the multilayer graphene is lacking and existing measurement methods are complicated. Optical power tuning RI of multilayer graphene is investigated using a simple measurement and no temperature cross sensitivity all optical fiber sensing structure. Optical power tuning RI characteristics of multilayer graphene are studied by tuning the introducing broad band light power from 0.57 mW to 22.7 mW. Different thickness graphene coating shows different tuning efficiency. At 4.86-μm thickness, a 3.433-nm Bragg wavelength shift is obtained with 156.2-pm/mW wavelength versus optical power tuning sensitivity corresponding to 3.25×103 RI change and 0.154 URI/W (URI, unit of RI) RI optical power tuning efficiency.

关键词: multilayer graphene, fiber Bragg grating, graphene cladding, refractive index

Abstract:

Graphene's optical absorption coefficient increases linearly with the number of layers making it more effective in the construction of optical tuning graphene-based devices. Refractive index (RI) is one of the important optical parameters of the graphene for accurately describing its optical characteristics and further applications. In view of the RI research of the multilayer graphene is lacking and existing measurement methods are complicated. Optical power tuning RI of multilayer graphene is investigated using a simple measurement and no temperature cross sensitivity all optical fiber sensing structure. Optical power tuning RI characteristics of multilayer graphene are studied by tuning the introducing broad band light power from 0.57 mW to 22.7 mW. Different thickness graphene coating shows different tuning efficiency. At 4.86-μm thickness, a 3.433-nm Bragg wavelength shift is obtained with 156.2-pm/mW wavelength versus optical power tuning sensitivity corresponding to 3.25×103 RI change and 0.154 URI/W (URI, unit of RI) RI optical power tuning efficiency.

Key words: multilayer graphene, fiber Bragg grating, graphene cladding, refractive index

中图分类号:  (Phonons in graphene)

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