Solid-state laser cooling in Yb:CaF₂ and Yb:SrF₂ by anti-Stokes fluorescence

2021 ◽  
Author(s):  
Stefan Püschel ◽  
Felix Mauerhoff ◽  
Christian Kraenkel ◽  
Hiroki Tanaka
Keyword(s):  
Solid State ◽  
Laser Cooling ◽  
Solid State Laser ◽  
State Laser ◽  
Anti Stokes

Solid-state laser cooling of optically levitated particles

2018 ◽  
Author(s):  
Demi St. John ◽  
Philip J. T. Woodburn ◽  
David P. Atherton ◽  
Charles W. Thiel ◽  
Zeb Barber ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Cooling ◽  
Solid State Laser ◽  
State Laser

Conceptual study of a fiber-optical approach to solid-state laser cooling

2011 ◽  
Author(s):  
Dan T. Nguyen ◽  
Christopher Shanor ◽  
Jie Zong ◽  
Wenyan Tian ◽  
Zhidong Yao ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Cooling ◽  
Solid State Laser ◽  
State Laser ◽  
Fiber Optical ◽  
Conceptual Study

scholarly journals Solid-State Laser Refrigeration at GPa Pressures

2020 ◽  
Author(s):  
Abbie S. Ganas ◽  
Elena Dobretsova ◽  
Anupum Pant ◽  
Baptiste Journaux ◽  
Xiaojing Xia ◽  
...  
Keyword(s):  
Solid State ◽  
Phase Space ◽  
Laser Cooling ◽  
Lithium Fluoride ◽  
Elevated Pressure ◽  
Solid State Laser ◽  
Stark Level ◽  
Space Group ◽  
State Laser ◽  
Temperature Dependent Properties

<div>Although solid-state laser-refrigeration recently has been demonstrated to reach cryogenic temperatures in vacuum, to date the solid-state laser refrigeration of materials at elevated pressure conditions has remained unexplored. Here we demonstrate the laser cooling of ytterbium-doped yttirum-lithium-fluoride (10%Yb<sup>3+</sup>:YLiF<sub>4</sub>, or Yb:YLF)</div><div>>17K below room temperature at pressures >4 GPa in a diamond anvil cell using lithium fluoride and ice-VII as a quasi-hydrostatic pressure media. Temperature measurements are quantified using a ratiometric-thermometry approach involving a Boltzmann fit to excited states distribution through 4f-4f Stark-level transitions from the Yb<sup>3+</sup> ions that occur between the <sup>2</sup>F<sub>5/2</sub> and <sup>2</sup>F<sub>7/2</sub> manifolds. At pressures between 7 and 12 GPa the YLF grains are observed to undergo a martensitic phase transition from a tetragonal scheelite phase (space group I41/a, Z = 4, No. 88) to a monoclinic fergusonite phase (space group I2/a, Z = 4, No. 15) which modifies the crys-</div><div>tal field splitting of the ground- and excited- state manifolds, but is observed to not eliminate laser cooling. Solid-state laser refrigeration at extreme pressures could allow researchers to use rapid photothermal cycling to explore temperature-dependent properties of materials, including electronic-structure phase-transitions, without the need for external cryostats.</div>

All fiber approach to solid-state laser cooling

2012 ◽  
Author(s):  
Dan T. Nguyen ◽  
Jie Zong ◽  
Dan Rhonehouse ◽  
Andy Miller ◽  
Zhidong Yao ◽  
...  
Keyword(s):  
Solid State ◽  
Laser Cooling ◽  
Solid State Laser ◽  
State Laser

scholarly journals Solid-State Laser Refrigeration at GPa Pressures

2020 ◽  
Author(s):  
Abbie S. Ganas ◽  
Elena Dobretsova ◽  
Anupum Pant ◽  
Baptiste Journaux ◽  
Xiaojing Xia ◽  
...  
Keyword(s):  
Solid State ◽  
Phase Space ◽  
Laser Cooling ◽  
Lithium Fluoride ◽  
Elevated Pressure ◽  
Solid State Laser ◽  
Stark Level ◽  
Space Group ◽  
State Laser ◽  
Temperature Dependent Properties

<div>Although solid-state laser-refrigeration recently has been demonstrated to reach cryogenic temperatures in vacuum, to date the solid-state laser refrigeration of materials at elevated pressure conditions has remained unexplored. Here we demonstrate the laser cooling of ytterbium-doped yttirum-lithium-fluoride (10%Yb<sup>3+</sup>:YLiF<sub>4</sub>, or Yb:YLF)</div><div>>17K below room temperature at pressures >4 GPa in a diamond anvil cell using lithium fluoride and ice-VII as a quasi-hydrostatic pressure media. Temperature measurements are quantified using a ratiometric-thermometry approach involving a Boltzmann fit to excited states distribution through 4f-4f Stark-level transitions from the Yb<sup>3+</sup> ions that occur between the <sup>2</sup>F<sub>5/2</sub> and <sup>2</sup>F<sub>7/2</sub> manifolds. At pressures between 7 and 12 GPa the YLF grains are observed to undergo a martensitic phase transition from a tetragonal scheelite phase (space group I41/a, Z = 4, No. 88) to a monoclinic fergusonite phase (space group I2/a, Z = 4, No. 15) which modifies the crys-</div><div>tal field splitting of the ground- and excited- state manifolds, but is observed to not eliminate laser cooling. Solid-state laser refrigeration at extreme pressures could allow researchers to use rapid photothermal cycling to explore temperature-dependent properties of materials, including electronic-structure phase-transitions, without the need for external cryostats.</div>

Feasibility evaluation of intracavity solid state laser cooling to cryogenic temperatures

2006 ◽  
Vol 53 (8) ◽  
pp. 1109-1120 ◽  
Author(s):  
B. Heeg ◽  
G. Rumbles ◽  
M. D. Stone ◽  
A. Khizhnyak ◽  
P. A. Debarber
Keyword(s):  
Solid State ◽  
Laser Cooling ◽  
Solid State Laser ◽  
Cryogenic Temperatures ◽  
State Laser ◽  
Feasibility Evaluation

New Perspectives in High-Power Optical Fiber-Amplifiers and Solid-State Laser Cooling

2008 ◽  
Author(s):  
Raman Kashyap ◽  
Galina Nemova ◽  
Cristiano M. B. Cordeiro ◽  
Christiano J. S. de Matos
Keyword(s):  
Solid State ◽  
Optical Fiber ◽  
Laser Cooling ◽  
High Power ◽  
Solid State Laser ◽  
Fiber Amplifiers ◽  
State Laser ◽  
Optical Fiber Amplifiers

Emerging Trends, Challenges, and Applications in Solid‐State Laser Cooling

2021 ◽  
pp. 353-396
Author(s):  
Jyothis Thomas ◽  
Lauro Maia ◽  
Yannick Ledemi ◽  
Younes Messaddeq ◽  
Raman Kashyap
Keyword(s):  
Solid State ◽  
Laser Cooling ◽  
Solid State Laser ◽  
State Laser ◽  
Emerging Trends
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