Merging of the acoustic branch with the boson peak in densified silica glass

2002 ◽  
Vol 66 (2) ◽  
Author(s):  
M. Foret ◽  
R. Vacher ◽  
E. Courtens ◽  
G. Monaco
Keyword(s):  
Silica Glass ◽  
Boson Peak ◽  
Acoustic Branch

scholarly journals Terahertz and Microwave Optical Properties of Single-Crystal Quartz and Vitreous Silica and the Behavior of the Boson Peak

2021 ◽  
Vol 11 (15) ◽  
pp. 6733
Author(s):  
Mira Naftaly ◽  
Andrew Gregory
Keyword(s):  
Single Crystal ◽  
Silica Glass ◽  
Broad Band ◽  
Peak Frequency ◽  
Vitreous Silica ◽  
Peak Height ◽  
Fused Silica ◽  
Boson Peak ◽  
Single Crystal Quartz ◽  
Crystal Quartz

Z-cut single-crystal quartz and vitreous silica (silica glass or fused silica) were evaluated for use as reference materials for terahertz and microwave measurements of complex permittivity, with Z-cut quartz confirmed as being suitable. Measurements of refractive indices and absorption coefficients for o-ray and e-ray in quartz and for vitreous silica are reported at frequencies between 0.2 and 6 THz and at 36 and 144 GHz, and compared with data reported in the literature. A previously unreported broad band was seen in the extraordinary absorption of quartz. The Boson peak in silica glass absorption was examined, and for the first time, two negative relationships have been observed: between the refractive index and the Boson peak frequency, and between the Boson peak height and its frequency.

scholarly journals Lattice dynamics ofα-cristobalite and the Boson peak in silica glass

2015 ◽  
Vol 27 (30) ◽  
pp. 305401 ◽  
Author(s):  
Björn Wehinger ◽  
Alexeï Bosak ◽  
Keith Refson ◽  
Alessandro Mirone ◽  
Aleksandr Chumakov ◽  
...  
Keyword(s):  
Silica Glass ◽  
Lattice Dynamics ◽  
Boson Peak

Effects of fictive temperature and halogen doping on the boson peak in silica glass

2005 ◽  
Vol 71 (2) ◽  
Author(s):  
N. Shimodaira ◽  
K. Saito ◽  
N. Hiramitsu ◽  
S. Matsushita ◽  
A. J. Ikushima
Keyword(s):  
Silica Glass ◽  
Boson Peak ◽  
Fictive Temperature ◽  
Halogen Doping

scholarly journals Anomalous Phonon Behavior: Blueshift of the Surface Boson Peak in Silica Glass with Increasing Temperature

2008 ◽  
Vol 100 (13) ◽  
Author(s):  
W. Steurer ◽  
A. Apfolter ◽  
M. Koch ◽  
W. E. Ernst ◽  
E. Søndergård ◽  
...  
Keyword(s):  
Silica Glass ◽  
Boson Peak ◽  
Increasing Temperature

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

Low-temperature thermal conductivity and boson peak in the glassy g-As2S3

2016 ◽  
Vol 39 (0) ◽  
pp. 66-72
Author(s):  
В. Міца ◽  
О. Фегер ◽  
С. Петрецький ◽  
Р. Голомб ◽  
В. Ткач
Keyword(s):  
Thermal Conductivity ◽  
Low Temperature ◽  
Boson Peak

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.

Observation of energy-distribution-dependent homogeneous upconversion in erbium-doped silica glass fibres

1999 ◽  
Vol 35 (14) ◽  
pp. 1189 ◽  
Author(s):  
D. Bremberg ◽  
S. Helmfrid ◽  
B. Jaskorzynska ◽  
M. Swillo ◽  
J.L. Philipsen ◽  
...  
Keyword(s):  
Energy Distribution ◽  
Silica Glass ◽  
Glass Fibres ◽  
Erbium Doped
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