Magnetoplasmonic nanograting geometry enables optical nonreciprocity sign control

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F18%3A10239849" target="_blank" >RIV/61989100:27640/18:10239849 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27740/18:10239849

Result on the web

<a href="https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-24-31554" target="_blank" >https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-24-31554</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.26.031554" target="_blank" >10.1364/OE.26.031554</a>

Result language

angličtina

Original language name

Magnetoplasmonic nanograting geometry enables optical nonreciprocity sign control

Original language description

We experimentally demonstrate a disruptive approach to control magnetooptical nonreciprocal effects. It has been known that the combination of a magneto-optically (MO) active substrate and extraordinary transmission (EOT) effects through deep-subwavelength nanoslits of a noble metal grating, leads to giant enhancements of the magnitude of the MO effects that would normally be obtained on just the bar substrate. This was demonstrated both in the transmission configuration, where the OET is directly observed, as well as in reflection configuration, where an increase of a transmitted power results in a decrease in reflected power. We show here that even more than just an enhancement, the MO effects can also undergo a sign reversal by achieving a hybridization of the different types of resonances at play in these EOT nanogratings. By tuning the geometrical profile of the grating&apos;s slits, one can engineer - for a fixed wavelength and fixed magnetization - the transverse MO Kerr effect (TMOKE) reflectivity of such a magnetoplasmonic system to be enhanced, extinguished or inversely enhanced. We have fabricated gold gratings with varying nanoslit widths on a Bi-substituted gadolinium iron garnet and experimentally confirmed such a behavior using a customized magneto-optic Mueller matrix ellipsometer. This demonstration allows new design paradigms for integrated nonreciprocal circuits and biochemical sensors with increased sensitivity and reduced footprint. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

OPTICS EXPRESS

ISSN

1094-4087

e-ISSN

—

Volume of the periodical

26

Issue of the periodical within the volume

24

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

31554-31566

UT code for WoS article

000451213200043

EID of the result in the Scopus database

2-s2.0-85057071179