Light Emission Efficiency of Gd3Al2Ga3O12:Ce (GAGG:Ce) Single Crystal Under X-ray Radiographic Conditions

Author(s):  
I. E. Seferis ◽  
C. M. Michail ◽  
S. L. David ◽  
A. Bakas ◽  
N. I. Kalivas ◽  
...  
2009 ◽  
Vol 4 (06) ◽  
pp. P06016-P06016 ◽  
Author(s):  
A Petropoulou ◽  
N Kalyvas ◽  
I Kandarakis ◽  
I Valais ◽  
G S Panayiotakis

2014 ◽  
Vol 151 ◽  
pp. 229-234 ◽  
Author(s):  
I. Seferis ◽  
C. Michail ◽  
I. Valais ◽  
J. Zeler ◽  
P. Liaparinos ◽  
...  

2008 ◽  
Vol 55 (6) ◽  
pp. 3703-3709 ◽  
Author(s):  
Christos. M. Michail ◽  
Ioannis G. Valais ◽  
Adrianos E. Toutountzis ◽  
Nektarios E. Kalyvas ◽  
George P. Fountos ◽  
...  

2009 ◽  
Vol 95 (1) ◽  
pp. 131-139 ◽  
Author(s):  
C. Michail ◽  
A. Toutountzis ◽  
S. David ◽  
N. Kalyvas ◽  
I. Valais ◽  
...  

2004 ◽  
Vol 57 (8) ◽  
pp. 803 ◽  
Author(s):  
Hongshan He ◽  
Wai-Kwok Wong ◽  
Jianping Guo ◽  
King-Fai Li ◽  
Wai-Yeung Wong ◽  
...  

A series of monoporphyrinate neodymium(iii) complexes stabilized by the anionic tripodal ligand hydridotris(pyrazol-1-yl)borate were prepared and characterized. These complexes were characterized by elemental analysis and spectroscopy. The structure of resulting complex was determined by single-crystal X-ray diffraction. The complex crystallized in the monoclinic space group P21/c, with a 13.7347(11), b 27.156(2), c 15.5397(13) Å, β 114.1490(10)°, and V 5288.8(7) Å3. The neodymium(iii) ion is coordinated by four nitrogen atoms from the porphyrinate dianion and three nitrogen atoms from the anionic tripodal ligand. Photoluminescence studies showed that the porphyrinate dianion absorbed light and transferred energy to the Nd3+ centre, a process which then allowed the metal ion to emit efficiently at 885, 900, and 1071 nm. The effects of the substituent and the solvent on emission efficiency were also investigated.


2013 ◽  
Author(s):  
I. E. Seferis ◽  
N. I. Kalyvas ◽  
I. G. Valais ◽  
C. M. Michail ◽  
P. F. Liaparinos ◽  
...  

Author(s):  
Ioannis G. Valais ◽  
Ioannis S. Kandarakis ◽  
Anastasios Konstantinidis ◽  
Dimitrios N. Nikolopoulos ◽  
Ioannis Sianoudis ◽  
...  

2010 ◽  
Vol 37 (7Part1) ◽  
pp. 3694-3703 ◽  
Author(s):  
C. M. Michail ◽  
G. P. Fountos ◽  
P. F. Liaparinos ◽  
N. E. Kalyvas ◽  
I. Valais ◽  
...  

Author(s):  
J. M. Galbraith ◽  
L. E. Murr ◽  
A. L. Stevens

Uniaxial compression tests and hydrostatic tests at pressures up to 27 kbars have been performed to determine operating slip systems in single crystal and polycrystal1ine beryllium. A recent study has been made of wave propagation in single crystal beryllium by shock loading to selectively activate various slip systems, and this has been followed by a study of wave propagation and spallation in textured, polycrystal1ine beryllium. An alteration in the X-ray diffraction pattern has been noted after shock loading, but this alteration has not yet been correlated with any structural change occurring during shock loading of polycrystal1ine beryllium.This study is being conducted in an effort to characterize the effects of shock loading on textured, polycrystal1ine beryllium. Samples were fabricated from a billet of Kawecki-Berylco hot pressed HP-10 beryllium.


Sign in / Sign up

Export Citation Format

Share Document