Modifying magneto-optical effects and optical activities using plasmonic nanostructures

CIC nanoGUNE Seminars

Speaker
Dr. Satoshi Tomita, Nara Institute of Science and Technology
When
2013/09/13
12:00
Place
nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
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Modifying magneto-optical effects and optical activities using plasmonic nanostructures Magneto-optical (MO) effects and optical activities (OA) look similar, but have very different physics. We have studied that MO and OA in the visible region are able to be modified by using localized surface plasmons (LSPs) of metallic nanostructures. In the first part, I would like to show modification of an MO Kerr effect of magnetic garnet films including gold nanoparticles [1]. Second part of my talk will be devoted to an induction of OA of a virus in the visible region using LSPs of gold nanoparticles [2]. Finally, I would like to show a meta-interface consisting of chiral and absorptive layers without a magnetic field brings about a non-reciprocal optical phenomenon, which is similar to MO effects [3]. References: [1] ST et al., Physical Review Letters 96, 167402 (2006). [2] M Kobayashi, ST et al., Optics Express 20, 24856 (2012). [3] ST et al., Physical Review B 87, 041404(R) (2013). **Host** : Alexander Bittner