Journal ArticleDOI
Growth, spectroscopic, and laser properties of Yb 3+ -doped Lu 3 Al 5 O 12 garnet crystal
Alain Brenier,Yannick Guyot,H. Canibano,Georges Boulon,Airan Rodenas,Daniel Jaque,A. Eganyan,Ashot Petrosyan +7 more
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TLDR
In this article, high-quality LuAG:Yb3+ crystals with 0.75, 3.8, 10, 12, 15, 20, and 50 at. % were grown using the vertical Bridgman method.Abstract:
We have grown high-quality LuAG:Yb3+ crystals with 0.75, 3.8, 10, 12, 15, 20, and 50 at. % concentrations by the vertical Bridgman method. With low-temperature spectroscopy the Stark sublevel structure of the 2F7/2 ground state and the 2F5/2 excited state has been determined. With room-temperature spectroscopy, the emission cross section was found to be 3×10−20 cm2, being 1.5 times the YAG:Yb3+ emission cross section. The luminescence quantum efficiency was measured in samples with different Yb3+ concentrations. Its value was found to be 90% for 3.8 and 10 at. %, 84% for 20 at. %, and 70% for 50 at. % Yb3+. The laser-emission tunability under diode pumping was found to extend from 1045 up to 1095 nm in a 12 at. % sample with 3.15 mm thickness.read more
Citations
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Why so deep research on Yb3+-doped optical inorganic materials?
Georges Boulon,Georges Boulon +1 more
TL;DR: The state-of-the-art of Yb 3+ -doped inorganic materials can be found in this paper, where a few examples such as optical transition assignments in the IR range, diode-pumped-IR laser, figure-ofmerit of laser crystals, concentration quenching studies, evidence of Y b 3+ pairs, the advance of yb 3 +-doped cubic ceramics for laser sources, Yb3+ as sensitizer of activator ions and Yb 2+ ion as structural probes of hosts.
Journal ArticleDOI
Challenge and study for developing of novel single crystalline optical materials using micro-pulling-down method
TL;DR: In this article, the micro-pulling-down (μ-PD) method is used to grow shape and/or device-size crystals from the melt using a single step process.
Journal ArticleDOI
Emission Red Shift and Unusual Band Narrowing of Mn2+ in NaCaPO4 Phosphor
TL;DR: The red shift and unusual band narrowing of Mn( 2+) emission by increasing Mn(2+) concentration in NaCaPO(4) is observed and the lifetime of Mn (2+) emission lengthens unexpectedly for higher Mn(1+) concentration.
Journal ArticleDOI
Fifty years of advances in solid-state laser materials
TL;DR: The year 2010 marks the 50th anniversary of the invention of the first laser device, ruby laser and it is therefore an appropriate time to look back at the developments in the laser field since its inception and to try to map out its milestones.
Journal ArticleDOI
Thermal and laser properties of Yb:LuAG for kW thin disk lasers
Kolja Beil,Susanne T. Fredrich-Thornton,Friedjof Tellkamp,Rigo Peters,Christian Kränkel,Klaus Petermann,Günter Huber +6 more
TL;DR: Investigation of the thermal conductivities revealed a 20% higher value for Yb:LuAG at Yb(3+)-doping concentrations, which offers the potential of improved performance in high power thin disk laser applications.
References
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Book
Solid-state laser engineering
TL;DR: In this article, the characteristics, design, construction and performance of solid-state lasers are discussed from an industrial perspective, focusing on engineering and practical considerations; phenomenological aspects using models are preferred to abstract mathematical derivations.
Book
Optical spectroscopy of inorganic solids
Brian Henderson,G. F. Imbusch +1 more
TL;DR: In this article, the authors present symmetry and group representation theory for Inorganic Solids and Spectroscopy of Lanthanide (rare-earth) and Actinide Ions in Solids.
Journal ArticleDOI
Modeling of longitudinally pumped solid-state lasers exhibiting reabsorption losses
TL;DR: In this paper, Liu et al. performed a comprehensive analysis of the behavior of longitudinally pumped solid-state laser, including reabsorption loss and for arbitrary sizes of the pump-and laser-beam waists.
Journal ArticleDOI
Thermal Conductivity of Garnets and Phonon Scattering by Rare-Earth Ions
Glen A. Slack,D. W. Oliver +1 more
TL;DR: The thermal conductivity of 23 different single crystals of natural and synthetic garnets has been measured from 2 to 300 K as discussed by the authors, and the heat seems to be carried mainly by the acoustic phonons with wave numbers less than about 125.