Enhancement of surface plasmon polariton on graphene excited by four-wave mixing
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Abstract:
We present a theoretical description of surface plasmon polariton (SPP) on a graphene surface excitated by four-wave mixing using two laser beams. The phase-matched incident angles of the two beams that meet the SPP excitation conditions are calculated, and the discussion of the generated SPP power dependence on the incident angles is presented. We demonstrate that there is an enhancement in the peak power at the optimum angles at 633 nm and 921 nm, which is about 30 and 850 times larger than the corresponding peak power on a gold surface, respectively.
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Project Supported:
This work has been supported by the National Natural Science Foundation of China （No.61001018）, the Natural Science Foundation of Shan- dong Province in China （Nos.ZR2011FM009 and ZR2012FM011）, the Research Fund of Shandong University of Science and Technology （SDUST） in China （No.2010KYJQ 103）, the Project of Shandong Province Higher Educational Science and Technology Program （No.J 11LG20）, and the Science ＆ Technology Project of Qingdao in Shandong Province in China （Nos. 11-2-4-4-（8）-jch and 10-3-4-2-1-jch）.
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