Journal
OPTICS LETTERS
Volume 43, Issue 20, Pages 5090-5093Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.005090
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Funding
- National Natural Science Foundation of China (NSFC) [11374146]
- National Key Project of Fundamental Research of China [2012CB932304]
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The sensing performance of one-dimensional magnetic nanograting based on magnetoplasmons was investigated. The predictable Kerr reversal and enhancement are achieved in our experiment. The further result shows that the shift of the Kerr null point has a linear relationship with the surrounding refractive index in a wide range. In addition, a huge figure of merit (FoM) of 1728/refractive index unit is achieved, which is 1 order of magnitude higher than the results reported. The experiment and theory confirm that the excitation of surface plasmons leads to the Kerr reversal and enhancement, resulting in a huge FoM. (C) 2018 Optical Society of America
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