Photoluminescence in Er‐doped AgGaS₂–GeS₂ glasses

Abstract

In this work study of photoluminescence (PL) spectra in the Er‐doped glasses of the AgGaS2‐GeS2 system is presented. Emission spectra of the glasses at T ≈ 292 K, excited by light with λex ≈ 980 nm and λex ≈ 532 nm are described well by transitions in the 4f‐shell of Er3+ ions. Spectral curves of the emission can be deconvoluted into four Gaussian components. Er atoms are localized both in the glass matrix and (with increased concentration) around large structural damages (heterogeneities) which are drains for them. This causes broadening of the emission bands of Er3+ ions that are localized around heterogeneities. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

EPR of γ-induced defects and their effects on the photoluminescence in the glasses of the Ag0.05Ga0.05Ge0.95S2–Er2S3 system

“…The PL spectra and emission mechanism in non-irradiated glassy alloys have been investigated in our previous works (Halyan et al, 2013(Halyan et al, , 2009. In those samples, we registered PL peaks at the wavelengths 520, 657 and 855, 1540 nm, which corresponds to the transitions 2 H 11/2 -4 І 15/2 , 4 F 9/2 -4 І 15/2 , 4 S 3/2 -4 І 13/2 , 4 I 13/2 -4 І 15/2 in erbium ions Er 3 þ , respectively.…”

Mechanism of Photoluminescence in Erbium-Doped Chalcogenide

“…Among the glassy alloys investigated here, the PL band widens in the sample with 0.27 at.% Er, and the above inequality is fulfilled. The microstructure study of alloys [11] showed the existence of inhomogeneities of 6-7 μm size the concentration of which increases with the amount of erbium. The generated inhomogeneities are good drains of defects which serve as the basis for cluster formation.…”

The Processes of Energy Transformation in Activated Laser Materials with Ions Er3 (Review)

“…Сьогодні ербієві стекла і кристали широко використовуються в якості активного середовища в лазерах і оптичних підсилювачах. Це пов'язано з тим, що довжина хвилі генерації йона ербію (1,5 мкм) є оптимальною для передачі інформації по волоконнооптичних лініях зв'язку та лежить у безпечному для очей діапазоні довжин хвиль [1][2][3][4][5]. У таких пристроях необхідний коефіцієнт підсилення може бути досягнутий за рахунок збільшення концентрації йонів Er 3+ .…”