Optical properties of erbium and thulium co-doped in tellurite glasses for the S+C band optical amplification

2005 ◽  
Author(s):  
Yasutake Ohishi ◽  
Tutomu Fumita ◽  
Hiroki Yamauchi ◽  
Takenobu Suzuki
Keyword(s):  
Optical Properties ◽  
Tellurite Glasses ◽  
Optical Amplification ◽  
Co Doped

Optical properties of single doped Cr3+ and co-doped Cr3+–Nd3+ aluminum tantalum tellurite glasses

2004 ◽  
Vol 380 (1-2) ◽  
pp. 163-166 ◽  
Author(s):  
U.R. Rodrı́guez-Mendoza ◽  
A. Speghini ◽  
D. Jaque ◽  
M. Zambelli ◽  
M. Bettinelli
Keyword(s):  
Optical Properties ◽  
Tellurite Glasses ◽  
Co Doped

Physico-chemical and optical properties of Er3+-doped and Er3+/Yb3+-co-doped Ge25Ga9.5Sb0.5S65 chalcogenide glass

2017 ◽  
Vol 89 (4) ◽  
pp. 429-436 ◽  
Author(s):  
Dianna Himics ◽  
Lukas Strizik ◽  
Jana Holubova ◽  
Ludvik Benes ◽  
Karel Palka ◽  
...  
Keyword(s):  
Optical Properties ◽  
Concentration Quenching ◽  
Electronic Transitions ◽  
Ofelt Theory ◽  
Optical Amplification ◽  
Excitation Light ◽  
Physico Chemical ◽  
532 Nm ◽  
Co Doped ◽  
Green Spectral Region

AbstractWe investigated the physicochemicаl properties, structure and optical properties of the Ge25Ga9.5Sb0.5S65: Er3+/Yb3+ glasses. The Judd-Ofelt theory was used to calculate the intensities of the intra-4f electronic transitions of Er3+ ions. We observed the upconversion photoluminescence (UCPL) at 530, 550, 660 and 810 nm under 980 nm excitation. In the Ge25Ga9.5Sb0.5S65: 0.1 at.% Er3+, we found that the Stokes photoluminescence (PL) at the green spectral region excited by the 490 and 532 nm laser is only ≈5 times higher than the UCPL emission under 810 or 980 nm excitation making these materials attractive for UCPL applications. The addition of 0.1–1 at.% of Yb3+ into Ge25Ga9.5Sb0.5S65: 0.1 at.% Er3+ glass reduces the UCPL as well as the Er3+ ≈1.5 μm emission intensity probably due to the reabsorption processes of the excitation light and concentration quenching. However, the observed Er3+: 4S3/2→4I13/2 (≈850 nm) emission in the Ge25Ga9.5Sb0.5S65: 0.1 at.% Er3+ sample populates the 4I13/2 level, which promises the using of this material for the 1.5 μm optical amplification.

Thermo-optical properties and nonradiative quantum efficiency of Er3+-doped and Er3+/Tm3+-co-doped tellurite glasses

2006 ◽  
Vol 352 (32-35) ◽  
pp. 3598-3602 ◽  
Author(s):  
V. Pilla ◽  
E.F. Chillcce ◽  
E. Rodriguez ◽  
T. Catunda ◽  
E. Munin ◽  
...  
Keyword(s):  
Optical Properties ◽  
Quantum Efficiency ◽  
Tellurite Glasses ◽  
Co Doped

Effect of TiO2 on the thermal and optical properties of Er3+/Yb3+ co-doped tellurite glasses for optical sensor

2019 ◽  
Vol 208 ◽  
pp. 342-349 ◽  
Author(s):  
J.J. Leal ◽  
R. Narro-García ◽  
J.P. Flores-De los Ríos ◽  
N. Gutierrez-Mendez ◽  
Víctor H. Ramos-Sánchez ◽  
...  
Keyword(s):  
Optical Properties ◽  
Optical Sensor ◽  
Tellurite Glasses ◽  
Co Doped

scholarly journals A Review on Physical and Optical Properties of Zinc Tellurite Glasses Co-doped with different rare earth ions

2021 ◽  
Vol 33 (6) ◽  
pp. 48-56
Author(s):  
SUKHDEV BAIRAGI ◽  
◽  
GHIZAL F. ANSAR ◽  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Data Storage ◽  
Optical Data Storage ◽  
Rare Earth Ions ◽  
Optical Data ◽  
Tellurite Glasses ◽  
X Ray Diffraction ◽  
Fibre Amplifier ◽  
Co Doped

In this work we review the effect of physical and optical properties with different ion zinc contents of tellurite base glass. The physical properties of the glasses were evaluated and the change in density, molar volume and ionic packing density in these glasses indicates the effect of ZnO different content show on the glasses structure. The study of optical properties such as the optical band gap and refractive index of zinc tellurite glass were studied. Zinc Tellurite glasses doped with Er3+ ions were synthesized by varies researcher. The glasses were characterized by X- ray diffraction, optical absorption and photoluminescence spectra. The glassy nature of zinc Tellurite host glass has been confirmed through XRD measurements. The glasses doped or co-doped with rare-earth ions have generated much interest due to the possibility of several promising applications such as optical data storage, visible laser, fibre amplifier, optical communication and sensor devices

Structure and optical properties of Zn and Mn co-doped nano-NiFe2O4

2021 ◽  
Author(s):  
Zein K. Heiba ◽  
Mohamed Bakr Mohamed ◽  
Noura M. Farag ◽  
Sameh I. Ahmed
Keyword(s):  
Optical Properties ◽  
Co Doped

scholarly journals Synthesis and Optical Properties of B-Mg co-Doped ZnO Nanoparticles

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 882
Author(s):  
Yuechan Li ◽  
Yongli Li ◽  
An Xie
Keyword(s):  
Optical Properties ◽  
Zno Nanoparticles ◽  
Great Influence ◽  
Structure Study ◽  
Band Gap Energy ◽  
One Pot ◽  
Gap Energy ◽  
Doping Impurity ◽  
Shrinkage Effect ◽  
Co Doped

Doping impurity into ZnO is an effective and powerful technique to tailor structures and enhance its optical properties. In this work, Zn1−xMgxO and Zn1−x−yMgxByO nanoparticles (x = 0, 0.1, 0.2, 0.3, 0.4; y = 0, 0.02, 0.04) were synthesized via one-pot method. It shows that the Mg and B dopants has great influence on crystallinity and surface morphology of ZnO nanoparticles, without changing the wurtzite structure of ZnO. The band structure study indicates that the competition of Conductive Band (CB) shift, Burstein–Moss (B-M) shift and Shrinkage effect will cause the band gap energy change in ZnO.

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