Acta Optica Sinica, Volume. 39, Issue 11, 1124002(2019)
Detection of Chemical Vapor Deposition-Prepared Graphene by Surface Plasmon Polariton Imaging
Fig. 1. Surface detection of transferred graphene. (a) Dark-field microscopy; (b) SEM
Fig. 3. Principle of graphene detection by SPP. (a) Schematic of SPP excited by Kretschmann configuration; (b) change of reflectance introduced by refractive index of graphene at interface; (c) change of SPP field distribution on interface induced by defects (dot: defect; straight line: incident SPP; dashed line: scattered SPP)
Fig. 4. SPP imaging of different graphene edges and propagation direction of SPP is shown as arrow
Fig. 5. Internal imaging of graphene and propagation direction of SPP is shown as arrow. (a) SPP imaging; (b) SEM imaging
Fig. 6. Imaging of wrinkles and break on edge of transferred graphene and propagation direction of SPP is shown as arrow. (a) SPP imaging; (b) SEM imaging
Fig. 7. Imaging of impurity nanoparticles on transferred graphene and propagation direction of SPP is shown as arrow. (a) SPP imaging; (b) SEM imaging
Fig. 8. Imaging of other impurities on transferred graphene and propagation direction of SPP is shown as arrow. (a) SPP imaging; (b) SEM imaging
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Ruxue Wei, Yanwei Wang, Liwen Jiang, Xuqing Sun, Hongyao Liu, Chang Wang, Xinchao Lu, Weier Lu, Yang Xia, Chengjun Huang. Detection of Chemical Vapor Deposition-Prepared Graphene by Surface Plasmon Polariton Imaging[J]. Acta Optica Sinica, 2019, 39(11): 1124002
Category: Optics at Surfaces
Received: Jun. 24, 2019
Accepted: Jul. 24, 2019
Published Online: Nov. 6, 2019
The Author Email: Lu Xinchao (luxinchao@ime.ac.cn), Lu Weier (luweier@ime.ac.cn)