Site-selective polarized spectroscopy of trivalent holmium-doped yttrium aluminum garnet

1992 ◽  
Vol 46 (13) ◽  
pp. 8007-8012 ◽  
Author(s):  
Michael D. Seltzer ◽  
Marian E. Hills ◽  
John B. Gruber
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Polarized Spectroscopy ◽  
Yttrium Aluminum ◽  
Site Selective

Crystal-field analysis ofEu3+-doped yttrium aluminum garnet by site-selective polarized spectroscopy

1993 ◽  
Vol 48 (13) ◽  
pp. 9264-9272 ◽  
Author(s):  
H. Gross ◽  
J. Neukum ◽  
J. Heber ◽  
D. Mateika ◽  
Tang Xiao
Keyword(s):  
Crystal Field ◽  
Yttrium Aluminum Garnet ◽  
Field Analysis ◽  
Polarized Spectroscopy ◽  
Yttrium Aluminum ◽  
Site Selective

Laser site-selective excitation spectroscopy ofEu3+-doped yttrium aluminum garnet

2003 ◽  
Vol 68 (1) ◽  
Author(s):  
YongRong Shen ◽  
ChunMao Li ◽  
Vilma C. Costa ◽  
Kevin L. Bray
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Selective Excitation ◽  
Yttrium Aluminum ◽  
Site Selective

Yag Single Crystals for Scintillators of Stem

1990 ◽  
Vol 48 (1) ◽  
pp. 166-167
Author(s):  
M. Hibino ◽  
K. Irie ◽  
R. Autrata ◽  
P. schauer
Keyword(s):  
Single Crystals ◽  
Yttrium Aluminum Garnet ◽  
Light Guide ◽  
Detection System ◽  
Polished Surface ◽  
Detective Quantum Efficiency ◽  
Backscattered Electrons ◽  
Electron Detection ◽  
Yttrium Aluminum ◽  
Phosphor Screens

Although powdered phosphor screens are usually used for scintillators of STEM, it has been found that the phosphor screen of appropriate thickness should be used depending on the accelerating voltage, in order to keep high detective quantum efficiency. 1 It has been also found that the variation in sensitivity, due to granularity of phosphor screens, makes the measurement of fine electron probe difficult and that the sensitivity reduces with electron irradiation specially at high voltages.In order to find out a preferable scintillator for STEM, single crystals of YAG (yttrium aluminum garnet), which are used for detecting secondary and backscattered electrons in SEM were investigated and compared with powdered phosphor screens, at the accelerating voltages of 100kV and 1 MV. A conventional electron detection system, consisting of scintillator, light guide and PMT (Hamamatsu Photonics R268) was used for measurements. Scintillators used are YAG single crystals of 1.0 to 3.2mm thicknesses (with surfaces matted for good interface to the light guide) and of 0.8mm thickness (with polished surface), and powdered P-46 phosphor screens of 0.07mm and 1.0mm thicknesses for 100kV and 1MV, respectively. Surfaces on electron-incidence side of all scintillators are coated with reflecting layers.

scholarly journals Preparation of Ce-doped yttrium aluminum garnet phosphor particles using spray drying method

2020 ◽  
pp. 1-8
Author(s):  
Shao-Ju Shih ◽  
Lewi Peter Richardo ◽  
Kevin Indrawan Sucipto ◽  
Zhi-Meng Wang
Keyword(s):  
Spray Drying ◽  
Yttrium Aluminum Garnet ◽  
Drying Method ◽  
Yttrium Aluminum

Interpretation of Alumina/Yttrium-Aluminum Garnet Orientation Relationships by Geometric Criteria

1990 ◽  
Vol 209 ◽  
Author(s):  
R.S. Hay ◽  
L.E. Matson
Keyword(s):  
Structural Unit ◽  
Yttrium Aluminum Garnet ◽  
Sol Gel ◽  
Interface Energy ◽  
Interface Structure ◽  
Invariant Line ◽  
Directionally Solidified ◽  
Orientation Relationships ◽  
Yttrium Aluminum

ABSTRACTGeometric criteria for low interface energy and interface structure were tested for the cubic-rhombohedral system YAG/alumina. Orientation relationships near (111){110}a // (112){110}y and facets on (111)a(112)y were observed in both sol-gel derived composites and directionally solidified eutectic composites. The ΣYAG=12 near-CSL of 2{111}, {110}, {112} was inferred to be the preferred structural unit. Dislocations with b=1/3{111}a and b=1/2{110}a were observed and inferred to accomodate deviation from the structural unit, respectively. The {110}a,y direction met some of the criteria for an invariant line. Although the OR was explained by geometric criteria it would have been difficult to predict it with such criteria

Energy states of the Cr3+ ion in yttrium aluminum garnet

1986 ◽  
Vol 45 (5) ◽  
pp. 1191-1194
Author(s):  
T. F. Veremeichik ◽  
I. N. Kalinkina
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Yttrium Aluminum ◽  
Energy States
Sign in / Sign up

Export Citation Format

Share Document