Growth and spectroscopic investigations of Na2W2O7 single crystals doped with cerium and chromium ions

2022 ◽  
Vol 63 (4) ◽  
2004 ◽  
Vol 18 (09) ◽  
pp. 367-373 ◽  
Author(s):  
I. ARDELEAN ◽  
N. MUREŞAN ◽  
P. PĂŞCUŢĂ

The Cr 2 O 3 content influence on the structure of 70 TeO 2·25 B 2 O 3·5 SrO glasses, was investigated by infrared and Raman spectroscopies. The results show that BO 3 and BO 4 are among the main structural units in the investigated glasses, together with TeO 3 and TeO 4 units. The presence of chromium ions located in the glass network is well evidenced in the IR and Raman spectra.


2017 ◽  
Vol 4 (1) ◽  
pp. 57-60
Author(s):  
P. Petkova ◽  
P. Vasilev ◽  
B. Bedzhev ◽  
R. Belcheva

Abstract The recent development of coherent light amplifiers and oscillators, now generally referred to as optical masers “or lasers,” has made feasible a host of new uses and applications of electromagnetic wave energy in the optical portion of the spectrum. Furthermore, the high degree of monochromaticity obtainable from an optical maser makes it a useful tool for spectroscopic investigations as well as for stimulating various types of chemical and physical reactions. The effect of vanadium doping transforms Bi4Ge3O12 single crystals into optical maser. This result can be observed after thermoluminescence at 556 nm.


2000 ◽  
Vol 14 (2) ◽  
pp. 171-173 ◽  
Author(s):  
V.A. Lebedev ◽  
I.V. Voroshilov ◽  
A.N. Gavrilenko ◽  
B.V. Ignatiev

2018 ◽  
Vol 91 (9-10) ◽  
pp. 923-931 ◽  
Author(s):  
U. Bachulska ◽  
J. Jankowska-Sumara ◽  
A. Majchrowski ◽  
M. Chrunik ◽  
D. Zasada ◽  
...  

2004 ◽  
Author(s):  
Yu. K. Voron'ko ◽  
Evgenii V. Zharikov ◽  
D. A. Lis ◽  
Alexander A. Sobol ◽  
K. A. Subbotin ◽  
...  

1999 ◽  
Author(s):  
K. A. Soubbotin ◽  
V. A. Smirnov ◽  
Ivan A. Shcherbakov ◽  
Evgenii V. Zharikov ◽  
S. V. Kovaliov ◽  
...  

1987 ◽  
Vol 36 (6) ◽  
pp. 369-372 ◽  
Author(s):  
W. Ryba-Romanowski ◽  
M.U. Gutowska ◽  
W. Piekarczyk ◽  
M. Berkowski ◽  
Z. Mazurak ◽  
...  

2004 ◽  
Vol 18 (01) ◽  
pp. 95-101 ◽  
Author(s):  
I. ARDELEAN ◽  
N. MUREŞAN ◽  
P. PǍŞCUŢǍ

Glasses of the x Cr 2 O 3·(100-x)[70 TeO 2·25 B 2 O 3·5 PbO ] system, with 0≤x≤20 mol %, were prepared and investigated by infrared and Raman spectroscopies in attempt to determine the local structure of glasses. The results shown that BO 3 and BO 4 are the main structural units of the glass system and the chromium ions are located in the network. It is evidenced the presence of TeO 3 and TeO 4 units as possible structural units in our glasses.


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