Family of highly efficient erbium-doped phosphate glasses

Author(s):  
Anatoly A. Izyneev ◽  
P. I. Sadovskii
2019 ◽  
Vol 3 ◽  
pp. 100034 ◽  
Author(s):  
SK Taherunnisa ◽  
D.V. Krishna Reddy ◽  
T. SambasivaRao ◽  
K.S. Rudramamba ◽  
Y.A. Zhydachevskyy ◽  
...  

2015 ◽  
Vol 1107 ◽  
pp. 420-425 ◽  
Author(s):  
Puzi Anigrahawati ◽  
M.R. Sahar ◽  
Md Supar Rohani ◽  
Sib Krishna Ghoshal

Modifying the optical properties of rare earth doped phosphate glasses in a tunable fashion via the embedment of magnetic nanoparticles (NPs) is challenging for magneto-optic devices. Glasses with compositions (69-x)P2O5-30ZnO-1Er2O3-(x)Fe3O4, where x = 0 to 1.5 mol% are prepared by conventional melt quenching method. The Fe3O4NPs concentration dependent density, molar volume, refractive index and optical properties are determined. Density and molar volume shows strong correlation with structural alteration in the presence of NPs. The XRD spectra confirm the disordered nature of the glass and TEM micrograph display the presence of spherical NPs with average size ~26 nm. The optical band gap and Urbach energy calculated from the room temperature absorption spectra recorded in the range of 350-1700 nm reveal significant improvement. The density and refractive index increases and the molar volume decreases with the increase of Fe3O4contents. The energy band gap for direct and indirect transitions varies in the range of 4.47-3.64 eV and 4.27-3.53 eV, respectively. The Urbach energy increases from 0.15 to 0.19 eV as the NPs concentration increases from 0 to 1.5 mol%.


2015 ◽  
Vol 1107 ◽  
pp. 471-476 ◽  
Author(s):  
R. Arifin ◽  
N.A. Zulkifeli ◽  
M.R. Sahar ◽  
S.K. Ghoshal

Precise manipulation of nanoparticles (NPs) in rare earth doped inorganic glasses for achieving tuneable physical and optical properties is challenging. Series of erbium doped phosphate glasses containing ZnO NPs with composition (78.5-x)P2O510Li2O10ZnO1.5Er2O3(x)ZnO, where 0x1.2 are prepared using melt quenching method. The local structures analyzed using FTIR spectra reveal an increase in depolymerisation of the glass at Q3 tetrahedral sites due to the introduction of ZnO NPs. The optical band gap energy obtained from UV-Vis absorption spectra varies within 3.533.59 eV and the Urbach energy increase as much as 0.260 eV. The role of ZnO NPs within the lithium (II) oxide-zinc oxide-phosphate glass matrix in influencing the optical and structural responses are analyzed and discussed. The observed optical improvements suggest that these glasses are potential for photonic devices.


2018 ◽  
Vol 5 (6) ◽  
pp. 14009-14016
Author(s):  
N. Luewarasirikul ◽  
N. Chanthima ◽  
Y. Tariwong ◽  
J. Kaewkhao

2004 ◽  
Vol 41 (2) ◽  
pp. 96-98
Author(s):  
Z. G. Lu ◽  
F. G. Sun ◽  
P. Lin ◽  
C. P. Grover

1990 ◽  
Vol 26 (18) ◽  
pp. 1426 ◽  
Author(s):  
B. Clesca ◽  
J. Auge ◽  
B. Biotteau ◽  
P. Bousselet ◽  
A. Dursin ◽  
...  

1989 ◽  
Vol 25 (20) ◽  
pp. 1386 ◽  
Author(s):  
R.S. Vodhanel ◽  
R.I. Laming ◽  
V. Shah ◽  
L. Curtis ◽  
D.P. Bour ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document