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The applications of graphene-based optical waveguide devices have been demonstrated to be one of the important directions of development for a new generation of photonic devices, and the research of graphene-based optical fiber and integrated photonic devices has attracted a great deal of attention at home and abroad. In this paper, a graphene planar optical waveguide is proposed which could transmit light by the evanescent field coupling with a microfiber. Finite element method is adopted to simulate the optical field intensity distribution and phase features of light propagating along graphene planar optical waveguide, and an experiment is performed to verify these features. Experimental results show that the transmission distribution and phases of the evanescent field are modulated by graphene obviously, it could effectively gather and transmit the high-order modes, exhibiting denser equal-phase faces on unit propagating length. In this work, we propose a new method in which the microfiber is adopted to investigate the transmission phase feature of graphene by evanescent wave coupling, which could be used as references for the design and application of graphene-based optical devices, such as modulator, filter, laser and sensor.
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Keywords:
- graphene planar optical waveguide /
- Evanescent wave /
- Optical field intensity /
- phase
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[2] Yin W H, Han Q, Yang X H 2012 Acta Phys. Sin. 61 248502 (in Chinese) [尹伟红, 韩勤, 杨晓红 2012 61 248502]
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[11] Vakil A, Engheta N 2011 Science 332 1291
[12] Yao B C, Wu Y, Jia L, Rao Y J, Gong Y, Jiang C Y 2012 J. Opt. Am. B 29 891
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[14] Jablan M, Buljan H, Soljačić M 2009 Phys. Rev. B 80 245435
[15] Wang Z G, Chen Y F, Li P J, Hao X, Liu J B, Huang R, Li Y R 2011 ACS Nano 5 7149
[16] He X Y, Liu Z B, Wang D N, Yang M W, Hu T Y, Tian J G 2013 IEEE Photonic. Tech. L 25 14
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[1] Geim A K, Novoselov K S 2007 Nature Materials 6 183
[2] Yin W H, Han Q, Yang X H 2012 Acta Phys. Sin. 61 248502 (in Chinese) [尹伟红, 韩勤, 杨晓红 2012 61 248502]
[3] Grigorenko A N, Polini M, Novoselov K S 2012 Nature Photonics 6 749
[4] Liu M, Yin X B, Ulin-Avila E, Geng B S, Zentgraf T, Ju L, Wang F, Zhang X 2011 Nature 474 64
[5] Bao Q L, Zhang H, Wang B, Ni Z H, Haley C, Lim Y X, Wang Y, Tang D Y, Loh K P 2011 Nature Photonics 5 411
[6] Feng D J, Han W Y, Jiang S Z, Ji W, Jia D F 2013 Acta Phys. Sin 62 054202 (in Chinese) [冯德军, 黄文育, 姜守振, 季伟, 贾东方 2013 62 054202]
[7] Li H, Anugrah Y, Koester S J, Li M 2012 Appl. Phys. Lett. 101 111110
[8] Yao B C, Wu Y, Cheng Y, Liu X P, Gong Y, Rao Y J 2012 Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors Beijing, China, October 15–19, 2012 p8421CD
[9] Zhao J, Zhang G Y, Shi D X 2013 Chin. Phys. B 225 057701
[10] Tong L M, Gattass R R, Ashcom J B, He S, Lou J Y, Shen M Y, Maxwell I, Mazur E 2003 Nature 426 816
[11] Vakil A, Engheta N 2011 Science 332 1291
[12] Yao B C, Wu Y, Jia L, Rao Y J, Gong Y, Jiang C Y 2012 J. Opt. Am. B 29 891
[13] Mikhailov S A, Ziegler K 2007 Phys. Rev. Lett. 99 016803
[14] Jablan M, Buljan H, Soljačić M 2009 Phys. Rev. B 80 245435
[15] Wang Z G, Chen Y F, Li P J, Hao X, Liu J B, Huang R, Li Y R 2011 ACS Nano 5 7149
[16] He X Y, Liu Z B, Wang D N, Yang M W, Hu T Y, Tian J G 2013 IEEE Photonic. Tech. L 25 14
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