TY - JOUR

T1 - Terbium concentration effect on magneto-optical properties of ternary phosphate glass

AU - Babkina, Anastasiia

AU - Kulpina, Ekaterina

AU - Sgibnev, Yevgeniy

AU - Fedorov, Yuriy

AU - Starobor, Aleksey

AU - Palashov, Oleg

AU - Nikonorov, Nikolay

AU - Ignatiev, Alexander

AU - Zyryanova, Ksenia

AU - Oreshkina, Kseniya

AU - Zhizhin, Evgeny

AU - Pudikov, Dmitrii

PY - 2020/2/14

Y1 - 2020/2/14

N2 - Ternary phosphate glass doped with different terbium concentration (up to 35 wt.%) is synthesized via standard melt-quenching technique. The effect of terbium content on physical, optical, and magneto-optical properties is investigated. Two glass transition regions on DSC curve at 35 wt.% Tb2O3 demonstrate phase-separation process. Transmittance spectra demonstrate maximum 0.2 cm−1 level in optical transmittance window of 400–1600 nm limited by standard absorption bands for terbium-containing materials. Metaphosphate groups in as-synthesized glass structure are predominant over polyphosphate complexes with no ultraphosphate units regardless to composition changes. After the additional heat treatment the partial depolymerization of glass structure occurs resulting in formation of big amount of Q0 and Q1 units. Glass refractive index varies from 1.5872 to 1.5814 with terbium content increase. The concentration dependence of Verdet constant is non-linear due to the presence of Tb4+ ions, which was confirmed by the XPS analysis results. The value of 15 rad/T/m at 1064 nm is reached for 35 wt.% Tb2O3-doped glass. The results indicate the viability of the considered glass series with high terbium oxide concentration to be attractive media for magnetooptical devices working in VIS and near IR ranges.

AB - Ternary phosphate glass doped with different terbium concentration (up to 35 wt.%) is synthesized via standard melt-quenching technique. The effect of terbium content on physical, optical, and magneto-optical properties is investigated. Two glass transition regions on DSC curve at 35 wt.% Tb2O3 demonstrate phase-separation process. Transmittance spectra demonstrate maximum 0.2 cm−1 level in optical transmittance window of 400–1600 nm limited by standard absorption bands for terbium-containing materials. Metaphosphate groups in as-synthesized glass structure are predominant over polyphosphate complexes with no ultraphosphate units regardless to composition changes. After the additional heat treatment the partial depolymerization of glass structure occurs resulting in formation of big amount of Q0 and Q1 units. Glass refractive index varies from 1.5872 to 1.5814 with terbium content increase. The concentration dependence of Verdet constant is non-linear due to the presence of Tb4+ ions, which was confirmed by the XPS analysis results. The value of 15 rad/T/m at 1064 nm is reached for 35 wt.% Tb2O3-doped glass. The results indicate the viability of the considered glass series with high terbium oxide concentration to be attractive media for magnetooptical devices working in VIS and near IR ranges.

KW - Faraday rotation

KW - Magnetooptical glass

KW - Terbium metaphosphate

KW - Verdet constant

KW - FARADAY-ROTATION

KW - TB3+

KW - PHOTOLUMINESCENCE

KW - NUCLEAR-MAGNETIC-RESONANCE

KW - VERDET CONSTANT

KW - DEPENDENCE

KW - BORATE

KW - LUMINESCENCE

KW - SPECTROSCOPY

KW - CRYSTALS

UR - http://www.scopus.com/inward/record.url?scp=85078158253&partnerID=8YFLogxK

UR - http://www.mendeley.com/catalogue/terbium-concentration-effect-magnetooptical-properties-ternary-phosphate-glass

U2 - 10.1016/j.optmat.2020.109692

DO - 10.1016/j.optmat.2020.109692

M3 - Article

AN - SCOPUS:85078158253

VL - 100

JO - Optical Materials

JF - Optical Materials

SN - 0925-3467

M1 - 109692

ER -