Observation of anti-Stokes fluorescence cooling of ytterbium-doped silica glass (Conference Presentation)

2020 ◽  
Author(s):  
Esmaeil Mobini ◽  
Saeid Rostami ◽  
Mostafa Peysokhan ◽  
Alexander R. Albrecht ◽  
Stefan Kuhn ◽  
...  
Keyword(s):  
Silica Glass ◽  
Anti Stokes

scholarly journals Laser cooling of ytterbium-doped silica glass

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Esmaeil Mobini ◽  
Saeid Rostami ◽  
Mostafa Peysokhan ◽  
Alexander Albrecht ◽  
Stefan Kuhn ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Laser Cooling ◽  
Silica Glass ◽  
Radiative Decay ◽  
Laser Wavelength ◽  
Solid State Laser ◽  
Cooling Efficiency ◽  
Laser Applications ◽  
Anti Stokes ◽  
Rare Earth Doped

Abstract Laser cooling of a solid is achieved when a coherent laser illuminates the material in the red tail of its absorption spectrum, and the heat is carried out by anti-Stokes fluorescence of the blue-shifted photons. Solid-state laser cooling has been successfully demonstrated in several materials, including rare-earth-doped crystals and glasses. Here we show the net cooling of high-purity Yb-doped silica glass samples that are fabricated with low impurities to reduce their parasitic background loss for fiber laser applications. The non-radiative decay rate of the excited state in Yb ions is very small in these glasses due to the low level of impurities, resulting in near-unity quantum efficiency. We report the measurement of the cooling efficiency as a function of the laser wavelength, from which the quantum efficiency of the Yb-doped silica is calculated.

Anti-Stokes photoluminescence in Ga/Bi co-doped sol-gel silica glass

2015 ◽  
Vol 40 (7) ◽  
pp. 1591 ◽  
Author(s):  
Oleksii Laguta ◽  
Hicham El Hamzaoui ◽  
Mohamed Bouazaoui ◽  
Vladimir B. Arion ◽  
Igor Razdobreev
Keyword(s):  
Silica Glass ◽  
Sol Gel ◽  
Anti Stokes ◽  
Co Doped

Anti-Stokes fluorescence cooling of a Yb-doped silica glass preform using a high-power laser

2021 ◽  
Author(s):  
Esmaeil Mobini ◽  
Saeid Rostami ◽  
Mostafa Peysokhan ◽  
Alexander R. Albrecht ◽  
Stefan Kuhn ◽  
...  
Keyword(s):  
High Power ◽  
Silica Glass ◽  
High Power Laser ◽  
Power Laser ◽  
Anti Stokes

scholarly journals Implementation of Laser-Induced Anti-Stokes Fluorescence Power Cooling of Ytterbium-Doped Silica Glass

ACS Omega ◽  
2021 ◽  
Vol 6 (12) ◽  
pp. 8376-8381
Author(s):  
Mostafa Peysokhan ◽  
Saeid Rostami ◽  
Esmaeil Mobini ◽  
Alexander R. Albrecht ◽  
Stefan Kuhn ◽  
...  
Keyword(s):  
Silica Glass ◽  
Anti Stokes

Ablation Process of Silica Glass Induced by Laser Plasma Soft X-ray Irradiation

2009 ◽  
Vol 129 (4) ◽  
pp. 595-600
Author(s):  
Tetsuya Makimura ◽  
Takashige Fujimori ◽  
Shuichi Torii ◽  
Hiroyuki Niino ◽  
Kouichi Murakami
Keyword(s):  
Laser Plasma ◽  
Silica Glass ◽  
Ablation Process ◽  
X Ray

Radiotechnical hot pressed glass fiber plastics for ship aerial fairings and antennas protection in radio connection and radio location systems

2019 ◽  
pp. 143-158
Author(s):  
V. E. Bakhareva ◽  
I. V. Nikitina ◽  
A. A. Churikova
Keyword(s):  
Glass Fiber ◽  
Silica Glass ◽  
High Strength ◽  
Scientific Problem ◽  
Epoxy Amine ◽  
Dielectric Glass ◽  
Radio Location ◽  
Location Systems

The article is devoted to the urgent scientific problem of creation and introduction in shipbuilding of high-strength, water-resistant dielectric glass-reinforced hot pressed plastics on the basis of bi- and polyfunctional epoxy-amine binders and glass fabrics from alkali, quartz and silica glass.

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