Growth of coilable yttrium aluminum garnet single crystal fibers with low loss and tailored rare-earth dopant concentration, using laser heated pedestal growth technique

2017 ◽  
Author(s):  
Subhabrata Bera ◽  
Craig D. Nie ◽  
James A. Harrington
Keyword(s):  
Rare Earth ◽  
Yttrium Aluminum Garnet ◽  
Dopant Concentration ◽  
Low Loss ◽  
Growth Technique ◽  
Yttrium Aluminum ◽  
Rare Earth Dopant ◽  
Crystal Fibers ◽  
Laser Heated ◽  
Garnet Single Crystal

Coloration of chromium‐doped yttrium aluminum garnet single‐crystal fibers using a divalent codopant

1991 ◽  
Vol 70 (7) ◽  
pp. 3775-3777 ◽  
Author(s):  
Brian M. Tissue ◽  
Weiyi Jia ◽  
Lizhu Lu ◽  
William M. Yen
Keyword(s):  
Single Crystal ◽  
Yttrium Aluminum Garnet ◽  
Yttrium Aluminum ◽  
Crystal Fibers ◽  
Garnet Single Crystal

Optimizing alignment and growth of low-loss YAG single crystal fibers using laser heated pedestal growth technique

2017 ◽  
Vol 56 (35) ◽  
pp. 9649 ◽  
Author(s):  
Subhabrata Bera ◽  
Craig D. Nie ◽  
Michael G. Soskind ◽  
James A. Harrington
Keyword(s):  
Single Crystal ◽  
Low Loss ◽  
Growth Technique ◽  
Crystal Fibers ◽  
Laser Heated

Simulation and experiment on laser-heated pedestal growth of chromium-doped yttrium aluminum garnet single-crystal fiber

2011 ◽  
Vol 318 (1) ◽  
pp. 674-678 ◽  
Author(s):  
Chun-Lin Chang ◽  
Sheng-Lung Huang ◽  
Chia-Yao Lo ◽  
Kuang-Yao Huang ◽  
Chung-Wen Lan ◽  
...  
Keyword(s):  
Single Crystal ◽  
Yttrium Aluminum Garnet ◽  
Crystal Fiber ◽  
Yttrium Aluminum ◽  
Simulation And Experiment ◽  
Laser Heated ◽  
Garnet Single Crystal

Single-crystal rare-earth doped YAG fiber lasers grown by the laser-heated pedestal growth technique

2014 ◽  
Author(s):  
Craig D. Nie ◽  
James A. Harrington ◽  
Yuan Li ◽  
Eric G. Johnson ◽  
Elizabeth F. Cloos ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Fiber Lasers ◽  
Growth Technique ◽  
Laser Heated ◽  
Rare Earth Doped

scholarly journals Влияние J-J-взаимодействия возбужденных состояний редкоземельного иона Pr-=SUP=-3+-=/SUP=- на магнитополяризованную люминесценцию празеодим-иттриевого граната-алюминия

2019 ◽  
Vol 61 (5) ◽  
pp. 848
Author(s):  
У.В. Валиев ◽  
Gary W. Burdick ◽  
Р.Р. Вильданов ◽  
R.Yu. Rakhimov ◽  
Dejun Fu
Keyword(s):  
Rare Earth ◽  
Circular Polarization ◽  
Spectral Region ◽  
Yttrium Aluminum Garnet ◽  
Visible Spectral Region ◽  
Irreducible Representations ◽  
Green Luminescence ◽  
Rare Earth Ion ◽  
Yttrium Aluminum ◽  
Polarization Of Luminescence

AbstractThe spectra of luminescence and magnetic circular polarization of luminescence of praseodymium–yttrium aluminum garnet Pr^3+ : Y_3Al_5O_12 (PrYAG) are studied in the visible spectral region at temperature T = 300 K. An analysis of spectral dependences of magnetooptical and optical spectra makes it possible to identify optical 4  f –4  f -transitions between Stark sublevels of multiplets ^3 P _0, ^3 P _1, ^3 Н _5, and ^3 Н _6 in PrYAG. It was shown that an important role in the spectrum of the degree of magnetic circular polarization of luminescence of this paramagnetic garnet is played by the effect of quantum-mechanical J – J mixing of states of Stark singlets ^3 Н _5 and ^3 Н _6 of non-Kramer rare-earth ion Pr^3+ in the “green” luminescence band related to forbidden 4  f → 4  f transition ^3 P _0 → ^3 Н _5 in the visible spectral region. To interpret the spectra of magnetic circular polarization of luminescence, the energy of experimentally determined Stark sublevels of multiplets under study, their irreducible representations and wave functions determined by numerical simulation of the energy spectrum of the rare-earth ion Pr^3+ in the garnet structure are used.

Facet-Related Site Selectivity for Rare-Earth Ions in Yttrium Aluminum Garnet

1971 ◽  
Vol 26 (25) ◽  
pp. 1570-1573 ◽  
Author(s):  
R. Wolfe ◽  
M. D. Sturge ◽  
F. R. Merritt ◽  
L. G. Van Uitert
Keyword(s):  
Rare Earth ◽  
Yttrium Aluminum Garnet ◽  
Rare Earth Ions ◽  
Site Selectivity ◽  
Yttrium Aluminum

Interface modification for increased fracture toughness in reaction-formed yttrium aluminum garnet/alumina eutectic composites

1999 ◽  
Vol 14 (10) ◽  
pp. 3907-3912 ◽  
Author(s):  
Luke N. Brewer ◽  
Derrick P. Endler ◽  
Shani Austin ◽  
Vinayak P. Dravid ◽  
Joseph M. Collins
Keyword(s):  
Rare Earth ◽  
Yttrium Aluminum Garnet ◽  
Rare Earth Ions ◽  
Alumina Powder ◽  
Interface Modification ◽  
Interfacial Toughness ◽  
Third Phase ◽  
Transmission Electron ◽  
Yttrium Aluminum ◽  
Scanning Transmission

The validity of controlling interfacial toughness in reaction-formed composites was explored using solid-state reaction processing and microanalysis techniques. A variety of rare-earth oxides was added to a yttrium aluminum garnet (YAG)/alumina powder mixture and then melted in air. Some melts retained the crystallography and microstructure of the pure, binary YAG–alumina eutectic. Using scanning transmission electron microscopy in conjunction with energy dispersive X-ray spectroscopy, rare-earth ions were observed both to segregate to the YAG/alumina interface and to form a third phase. Some evidence of increased crack deflection at these interfaces was observed via indentation fracture.

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