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Article

Size Effects in Optical and Magneto-Optical Response of Opal-Cobalt Heterostructures

1
Physics Department, M. V. Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia
2
Institute for Physics of Microstructures, RAS, 603950 Nizhny Novgorod, Russia
3
Radio-Physical Department, Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia
4
Ioffe Institute, Politekhnicheskaya ul. 26, 194021 St. Petersburg, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Andrei V. Petukhov
Materials 2021, 14(13), 3481; https://doi.org/10.3390/ma14133481
Received: 24 May 2021 / Revised: 14 June 2021 / Accepted: 19 June 2021 / Published: 22 June 2021
(This article belongs to the Special Issue Feature Papers for Section Advanced Nanomaterials and Nanotechnology)
Search for new types of efficient magnetoplasmonic structures that combine high transparency with strong magneto-optical (MO) activity is an actual problem. Here, we demonstrate that composite heterostructures based on thin perfectly-arranged opal films and a perforated cobalt nanolayer meet these requirements. Anomalous transmission appears due to periodic perforation of Co consistent with the regular set of voids between opal spheres, while resonantly enhanced MO response involves the effects of surface plasmon-polariton (SPP) excitation at opal/Co interface or those associated with photonic band gap (PBG) in opal photonic crrystals. We observed the enhancement of the MO effect of up to 0.6% in the spectral vicinity of the SPP excitation, and several times less strong effect close to the PBG, while the combined appearance of PBG and SPP decreases the resultant MO response. Observed resonant magneto-optical properties of opal/Co heterostructures show that they can be treated as functional self-assembled magnetoplasmonic crystals with resonantly enhanced and controllable MO effect. View Full-Text
Keywords: synthetic opal; photonic bandgap; surface plasmon-polariton; magneto-optics synthetic opal; photonic bandgap; surface plasmon-polariton; magneto-optics
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MDPI and ACS Style

Kolmychek, I.A.; Lazareva, K.A.; Mamonov, E.A.; Skorokhodov, E.V.; Sapozhnikov, M.V.; Golubev, V.G.; Murzina, T.V. Size Effects in Optical and Magneto-Optical Response of Opal-Cobalt Heterostructures. Materials 2021, 14, 3481. https://doi.org/10.3390/ma14133481

AMA Style

Kolmychek IA, Lazareva KA, Mamonov EA, Skorokhodov EV, Sapozhnikov MV, Golubev VG, Murzina TV. Size Effects in Optical and Magneto-Optical Response of Opal-Cobalt Heterostructures. Materials. 2021; 14(13):3481. https://doi.org/10.3390/ma14133481

Chicago/Turabian Style

Kolmychek, Irina A., Ksenia A. Lazareva, Evgeniy A. Mamonov, Evgenii V. Skorokhodov, Maksim V. Sapozhnikov, Valery G. Golubev, and Tatiana V. Murzina 2021. "Size Effects in Optical and Magneto-Optical Response of Opal-Cobalt Heterostructures" Materials 14, no. 13: 3481. https://doi.org/10.3390/ma14133481

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