Aperture-ratio dependence of the efficiency of magneto-optical first-order diffraction in GdFe stripe arrays with alternating perpendicular magnetization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10332686" target="_blank" >RIV/00216208:11320/16:10332686 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0030401816302000" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0030401816302000</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optcom.2016.03.037" target="_blank" >10.1016/j.optcom.2016.03.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Aperture-ratio dependence of the efficiency of magneto-optical first-order diffraction in GdFe stripe arrays with alternating perpendicular magnetization

Popis výsledku v původním jazyce

The efficiency of magneto-optical (MO) diffraction in GdFe stripe arrays with alternating directions of perpendicular magnetization is investigated. The diffraction efficiency depends on the aperture ratio, as theoretically analyzed for an array composed of magnetic and nonmagnetic materials, with the magnetization directions parallel or antiparallel. The stripe patterns are composed of two ferromagnetic alloys of different compositions, Gd19.7Fe80.3 and Gd23.4Fe76.6 (denoted GF1 and GF2), having different coercivities in the parallel and antiparallel configurations. The stripe patterns are separated by nonmagnetic SiO2 stripes of different widths to obtain aperture ratios of 100, 75, 50 and 25%. The magnetization distributions in the samples is confirmed by MO microscopy. The diffraction efficiencies at a wavelength of 532 nm are measured to be 1.27 x 10(-6),1.04 x 10(-6), 6.2 x 10(-7) and 2.0 x 10(-7) for aperture ratios of 100, 75, 50, and 25%, respectively. Those values are in accord with calculations using the measured MO and optical parameters of the GF1 layer, including the Kerr rotation angle of 0.12 degrees, the Kerr ellipticity of -0.1 degrees and the reflectance of 0.37. (C) 2016 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Aperture-ratio dependence of the efficiency of magneto-optical first-order diffraction in GdFe stripe arrays with alternating perpendicular magnetization

Popis výsledku anglicky

The efficiency of magneto-optical (MO) diffraction in GdFe stripe arrays with alternating directions of perpendicular magnetization is investigated. The diffraction efficiency depends on the aperture ratio, as theoretically analyzed for an array composed of magnetic and nonmagnetic materials, with the magnetization directions parallel or antiparallel. The stripe patterns are composed of two ferromagnetic alloys of different compositions, Gd19.7Fe80.3 and Gd23.4Fe76.6 (denoted GF1 and GF2), having different coercivities in the parallel and antiparallel configurations. The stripe patterns are separated by nonmagnetic SiO2 stripes of different widths to obtain aperture ratios of 100, 75, 50 and 25%. The magnetization distributions in the samples is confirmed by MO microscopy. The diffraction efficiencies at a wavelength of 532 nm are measured to be 1.27 x 10(-6),1.04 x 10(-6), 6.2 x 10(-7) and 2.0 x 10(-7) for aperture ratios of 100, 75, 50, and 25%, respectively. Those values are in accord with calculations using the measured MO and optical parameters of the GF1 layer, including the Kerr rotation angle of 0.12 degrees, the Kerr ellipticity of -0.1 degrees and the reflectance of 0.37. (C) 2016 Elsevier B.V. All rights reserved.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Optics Communications

ISSN

0030-4018

e-ISSN

—

Svazek periodika

371

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

67-71

Kód UT WoS článku

000375423300011

EID výsledku v databázi Scopus

2-s2.0-84961621639