Molecular dynamics study on the co‐doping effect of Al 2 O 3 and fluorine to reduce Rayleigh scattering of silica glass

AbstractWe conduct molecular dynamics computer simulations of fracture in silica glass using the van Beest, Kramer, and van Santen model. Stress is applied by uniaxial strain at different pulling rates. Comparisons with previous fracture simulations of silica that used the Soules force function are presented. We find that in both models stress is relieved by rotation of the (SiO4)-2 tetrahedrons, increasing Si-O-Si bonding angles, and only small changes in the tetrahedron dimensions and O-Si-O angles.

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Crack Initiation, Kinking and Nanoscale Damage in Silica Glass: Multimillion-Atom Molecular Dynamics Simulations

IUTAM Symposium on Modelling Nanomaterials and Nanosystems - IUTAM Bookseries ◽

10.1007/978-1-4020-9557-3_2 ◽

2008 ◽

pp. 13-17

Author(s):

Y. C. Chen ◽

K. Nomura ◽

Z. Lu ◽

R. Kalia ◽

A. Nakano ◽

...

Keyword(s):

Molecular Dynamics ◽

Crack Initiation ◽

Molecular Dynamics Simulations ◽

Silica Glass ◽

Dynamics Simulations

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Ni, Eu-Co doping effect on the photocatalytic activity and magnetic recyclability in multifunctional single-phase photocatalysts Bi5FeTi3O15

Journal of Colloid and Interface Science ◽

10.1016/j.jcis.2018.09.054 ◽

2019 ◽

Vol 534 ◽

pp. 499-508 ◽

Cited By ~ 4

Author(s):

Hui Sun ◽

Tianshu Yao ◽

Xi Xie ◽

Yuxi Lu ◽

Yan Wang ◽

...

Keyword(s):

Photocatalytic Activity ◽

Single Phase ◽

Doping Effect ◽

Co Doping

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Diode pumped visible Dy3+-doped silica fiber laser: Ge-co-doping effects on lasing efficiency and photodarkening

Applied Physics Express ◽

10.35848/1882-0786/ac3d1d ◽

2021 ◽

Author(s):

Tomoya Okazaki ◽

Chiaki Otsuka ◽

Edson Haruhico Sekiya ◽

Kota Kawai ◽

Masato Mizusaki ◽

...

Keyword(s):

Slope Efficiency ◽

Rayleigh Scattering ◽

Maximum Output Power ◽

Silica Fiber ◽

Maximum Output ◽

Laser Oscillation ◽

Scattering Loss ◽

Co Doping ◽

Doping Effects ◽

Diode Pumped

Abstract We present the first demonstration of visible laser oscillation in the Dy3+-doped silica fiber pumped by a 451nm InGaN laser diode. It was found that Ge-co-doping plays the following important roles of laser oscillation: (1) to reduce the Rayleigh scattering loss, (2) to suppress the X-ray-induced and pump-induced photodarkening (PD), and (3) to increase lasing slope efficiency. In a fiber with 0.46wt% Dy, 1.8 wt% Ge, and 0.54wt% Al, the slope efficiency is 22.0 % at 582.5 nm, and the maximum output power is 18.4 mW.

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Abnormal co-doping effect on the red persistent luminescence SrS:Eu2+,RE3+ materials

Dalton Transactions ◽

10.1039/d0dt01315c ◽

2020 ◽

Vol 49 (45) ◽

pp. 16386-16393 ◽

Cited By ~ 1

Author(s):

Danilo Ormeni Almeida dos Santos ◽

Luidgi Giordano ◽

Miguel Aguirre Stock Grein Barbará ◽

Marcelo Cecconi Portes ◽

Cássio Cardoso Santos Pedroso ◽

...

Keyword(s):

Rare Earth ◽

Defect Concentration ◽

Doping Effect ◽

Persistent Luminescence ◽

Co Doping ◽

The Rare Earth

Rapidly prepared SrS:Eu2+,RE3+ exhibits long red persistent luminescence independent of the rare earth co-dopant due to a high Schottky defect concentration.

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