N. P. Ling, K. Chou, C. T. Jhou, M. Lai, T. C. Chen, C. Lai, L. W. Wang, Gwo-Bin Lee, M. M. Lee
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Observation of strong transverse magneto-optical Kerr effect on surface plasmonic gratings
Strong transverse magneto-optical Kerr effect (TMOKE) on Au/Fe/Au surface plasmon (SP) gratings is demonstrated. Via the optimal design of this structure, the measured Kerr parameter is 0.03, which is 3 times larger than the maximal value ever reported on a plane magneto-optical SP substrate. Moreover, the Kerr parameter is very dispersive near the SP wavelength, which can be used for a high sensitive biosensor.