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
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)
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
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.
中图分类号: (Thermal properties of graphene)