Optical properties of Sm3+ ions doped in tellurite glass

2003 ◽  
Vol 59 (5) ◽  
pp. 917-925 ◽  
Author(s):  
Akshaya Kumar ◽  
D.K Rai ◽  
S.B Rai
Keyword(s):  
Optical Properties ◽  
Tellurite Glass

Samarium Concentration and Optical Correlation of Tellurite Glass

2015 ◽  
Vol 1107 ◽  
pp. 443-448
Author(s):  
Sib Krishna Ghoshal ◽  
Azmirawahida Zainuddin ◽  
Ramli Arifin ◽  
M.R. Sahar ◽  
Md Supar Rohani ◽  
...  
Keyword(s):  
Optical Properties ◽  
Tellurite Glass ◽  
Urbach Energy ◽  
Photonic Devices ◽  
Rare Earth Ions ◽  
Indirect Transition ◽  
Absorption Bands ◽  
Quenching Effect ◽  
Quenching Method ◽  
Inorganic Glasses

Modifying the structural and optical properties of inorganic glasses via controlled doping of various rare earth ions by inhibiting the quenching effect is a challenging task. We report the influence of samarium (Sm3+) ions concentration on enhanced optical properties of tellurite glass. A series of glasses with composition (0.80-x)TeO2 + 0.10Li2O + 0.10 Na2O + xSm2O3, where 0.0<x <0.03 mol% are prepared using melt quenching method and optical characterizations are performed. The XRD spectra confirm the amorphous nature of the glass. The Urbach energy decreases and the optical gap for both direcet and indirect transitions increases with the increse of samerium contents. The UV-Vis spectra comprised of eight absorption bands and PL spectra reveal four prominet peaks corresponding to various transitions from the ground state to the excited states of Sm3+ ion. The optical response shows significant enhancement with increasing concentration of samerium ions. Our detail experimental analyses may be useful for the development of tellurite glass based photonic devices. Keywords: Tellurite Glass, Sm3+ ions, Urbach Energy, Direct and Indirect Transition.

Preparation and optical properties of TeO 2 –BaO–ZnO–ZnF 2 fluoro-tellurite glass for mid-infrared fiber Raman laser applications

2017 ◽  
Vol 66 ◽  
pp. 567-572 ◽  
Author(s):  
Jie Li ◽  
Xusheng Xiao ◽  
Shaoxuan Gu ◽  
Yantao Xu ◽  
Zhiguang Zhou ◽  
...  
Keyword(s):  
Optical Properties ◽  
Tellurite Glass ◽  
Raman Laser ◽  
Laser Applications ◽  
Mid Infrared

Comprehensive Comparison on Optical Properties of Samarium Oxide (Micro/nano) Particles Doped Tellurite Glass for Optoelectronics Applications

2021 ◽  
Author(s):  
Azlan M.N ◽  
Hajer S.S ◽  
Halimah Mohamed Kamari ◽  
Umar S.A ◽  
Zaid M.H.M ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Tellurite Glass ◽  
Linear Trend ◽  
Optoelectronic Devices ◽  
Glass Network ◽  
Nano Particles ◽  
Samarium Oxide ◽  
Nano Scale ◽  
Glass Series

Abstract Rare-earth oxides microparticles doped tellurite-based glass have been studied extensively to improve the capability of optoelectronic devices. We report a detailed comparison between two sets of glass series containing samarium microparticles and nanoparticles denoted as ZBTSm-MPs and ZBTSm-NPs respectively. The two sets of glass have been successfully fabricated via melt-quenching technique with chemical formula {[(TeO2)0.70 (B2O3)0.30]0.7 (ZnO)0.3}1-y (Sm2O3 (MPs/NPs)) y with y = 0.005, 0.01, 0.02, 0.03, 0.04 and 0.05 mol fraction. The TEM analysis confirmed the existence and formation of nanoparticles in ZBTSm-NPs glasses. The density of ZBTSm-NPs glasses was found higher than ZBTSm-MPs glasses due to the distributions of nano-scale particles in tellurite glass network. There was a linear trend of increment in the refractive index in both sets of glass series along with the concentrations of dopants. The refractive index of ZBTSm-NPs glasses was found higher than ZBTSm-MPs glasses due to the shift in compactness of glass structure with nano-scale particles. In comparison, the absorption peaks of ZBTSm-MPs glasses were greater than ZBTSm-NPs glasses which were mainly due to the restriction of electrons mobility in glass network with nano-scale particles. The optical band gap energy in ZBTSm-NPs glasses was found greater than ZBTSm-MPs glasses which correspond to the widening of forbidden gap with nano-scale particles. The polarizability of ZBTSm-NPs and ZBTSm-MPs was found in non-linear trend along with dopant concentrations. Based on these findings, the improvement of optical properties have been made by introducing samarium oxide nanoparticles in tellurite glass which is beneficial for optoelectronic devices.

Effects of Chloride Ion in TeO2-ZnO-ZnCl2-Li2O-Eu2O3 Glass System

2011 ◽  
Vol 181-182 ◽  
pp. 383-387
Author(s):  
M.R. Sahar ◽  
R. Arifin ◽  
S.K. Ghoshal
Keyword(s):  
Optical Properties ◽  
Absorption Spectrum ◽  
Intensity Ratio ◽  
Photoluminescence Spectrum ◽  
Tellurite Glass ◽  
Radiative Lifetime ◽  
Chloride Ion ◽  
Melt Quenching ◽  
Laser Material ◽  
Quenching Method

A series of zinc oxychloride tellurite glass based on (79 – z) TeO2- 10ZnO - (z) ZnCl2- 10Li2O - 1Eu2O3(where z = 0, 10, 20, 25 and 30 mol %) are successfully prepared by the melt quenching method. The optical properties are characterized by means of Raman spectra, UV-Vis and photoluminescence spectroscopy. It is found that the Raman spectrum of the glass shows three main peaks in the vibrational band in the vicinity of 430, 670 and 770 cm-1. The intensity of all bands is decreased as the ZnCl2contents are increased from 0 to 30 mol % but the intensity ratio (I770/ I670) increased. This may arise from the change in the structural chains from TeO4to TeO3+1or to a TeO3polyhedron shape. Using the UV-Vis absorption spectrum, the Judd-Ofelt (J-O) analysis is performed to determine the J-O parameters (Ω2, Ω4, Ω6) and it is found that Ω2> Ω4> Ω6. The values of Ω2, Ω4, Ω6, the quality factor (Q) and the radiative lifetime (τrad) are found to increase with ZnCl2content up to 20 mol %. From photoluminescence spectrum, it is found that the value of the intensity ratio between5D0→7F2and5D0→7F1transition increase with ZnCl2contents which illustrates that this glass can easily become laser material.

scholarly journals Effect of PbO on optical properties of tellurite glass

2018 ◽  
Vol 8 ◽  
pp. 16-25 ◽  
Author(s):  
S.H. Elazoumi ◽  
H.A.A. Sidek ◽  
Y.S. Rammah ◽  
R. El-Mallawany ◽  
M.K. Halimah ◽  
...  
Keyword(s):  
Optical Properties ◽  
Tellurite Glass

The Effect of Variation Concentration Nd3+ Ions on Physical and Optical Properties of TZBN Glass

2014 ◽  
Vol 896 ◽  
pp. 225-228
Author(s):  
Evi Nurliana ◽  
Riyatun ◽  
Lita Rahmasari
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Absorption Spectrum ◽  
Tellurite Glass ◽  
Nir Spectroscopy ◽  
Melt Quenching ◽  
Covering Density ◽  
Glass Density ◽  
Concentration Of Ions

This study aims to determine the optical and physical properties of TZBN:Nd glass with the composition (mol%) 60TeO2-2Bi2O3-(34-x)ZnO-4Na2O-xNd2O3 with variation of doping x = 0.5; 1.0; 1.5; 2.0. Fabrication has been done by using the melt-quenching technique. Characterization of tellurite glass covering density, refractive index and absorption spectrum of glass. Density of glass have been measured using the Archimedes method. Refractive index of glass have been measured using the Brewster angle at wavelength 746.191 nm. Absorption spectrum measurements using UV-Vis-NIR spectrophotometer Perkin Elmer Lambda 25 in the region of 200-1100 nm. The results of characterization show that density / physical characteristics of glass did not increase when the concentration of ions Nd3+ to TZBN:Nd glass increased. The refractive index of glass will increase as the concentration of ions Nd3+ to TZBN:Nd glass increased. Based on the results of UV-Vis-NIR spectroscopy measurements shows that there are nine significant spectra have been observed in the region of 200-1100 nm, such as at a wavelength of 431 nm, 474 nm, 515 nm, 527 nm, 585 nm, 684 nm, 749 nm, 805 nm, and 878 nm and the highest absorption peak is at a wavelength of 585 nm.

Acousto-optical properties of tellurite glass

1974 ◽  
Vol 10 (9) ◽  
pp. 687-688 ◽  
Author(s):  
T. Izumitani ◽  
I. Masuda
Keyword(s):  
Optical Properties ◽  
Tellurite Glass

scholarly journals Influence of Rare Earth Ions on the Optical Properties of Tellurite Glass

2011 ◽  
Vol 120 (4) ◽  
pp. 579-581 ◽  
Author(s):  
B. Burtan ◽  
M. Reben ◽  
J. Cisowski ◽  
J. Wasylak ◽  
N. Nosidlak ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Tellurite Glass ◽  
Rare Earth Ions
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