Abstract

Magneto-optical (MO) effect is used in many applications, such as modulator, chemical- and bio-sensing fields [1]. Recently, the giant enhancements of MO effect were demonstrated using plasmonic structures [2,3]. However, the enhancement is resonantly achieved only at a particular wavelength or incident angle. This limits its operating wavelength and configuration of applications. In this work, polar Kerr MO effect enhancement in wide wavelength region was experimentally demonstrated by using (lossless dielectric film)/(highly lossy magnetic film) on metal substrate.

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