Results 31 to 40 of about 165,819 (299)

Layer-by-Layer Repair of Small-Scale Damage of Fused Silica Based on the Magnetorheological Method

open access: yesMicromachines, 2021
The magnetorheological (MR) repair method can effectively repair the small-scale damage of fused silica optics and further improve the laser-induced damage threshold of fused silica optics.
Mingjie Deng   +5 more
doaj   +1 more source

Systematic analysis on the chemical reaction to the material removal in bonnet polishing of fused silica glass

open access: yesJournal of Materials Research and Technology
Fused silica glass, known for its exceptional physical and chemical properties, is widely used across diverse industries. Cerium oxide (CeO2), a common polishing abrasive, is extensively employed in polishing fused silica surfaces.
Xiaolong Ke   +10 more
doaj   +1 more source

Laser field manipulation and laser damage resistance property of nanotextures on fused silica optics

open access: yesResults in Physics, 2020
Nanotextures, being composed of an array of nanostructures, can manipulate the effective refractive index on the interface between air and optical substrates.
Xin Ye   +6 more
doaj   +1 more source

Picosecond laser welding of similar and dissimilar materials [PDF]

open access: yes, 2014
We report picosecond laser welding of similar and dissimilar materials based on plasma formation induced by a tightly focused beam from a 1030 nm, 10 ps, 400 kHz laser system.
Carter, Richard M.   +4 more
core   +1 more source

Influence of Temperature Variation on the Vibrational Characteristics of Fused Silica Cylindrical Resonators for Coriolis Vibratory Gyroscopes

open access: yesSensors, 2020
The fused silica cylindrical resonator is a type of axisymmetric resonator that can be used for Coriolis vibratory gyroscopes. Although the resonant frequency, frequency mismatch, and Q factor are natural properties of the resonator, they can change with
Pengbo Xiao   +7 more
doaj   +1 more source

An Ultra-High-Q Lithium Niobate Microresonator Integrated with a Silicon Nitride Waveguide in the Vertical Configuration for Evanescent Light Coupling

open access: yesMicromachines, 2021
We demonstrate the hybrid integration of a lithium niobate microring resonator with a silicon nitride waveguide in the vertical configuration to achieve efficient light coupling.
Jianhao Zhang   +8 more
doaj   +1 more source

Systematic measurement of the intrinsic losses in various kinds of bulk fused silica

open access: yes, 2004
We systematically measured and compared the mechanical losses of various kinds of bulk fused silica. Their quality factors ranged widely from 7x10^5 to 4x10^7, the latter being one of the highest reported among bulk fused silica.
Abramovici   +34 more
core   +1 more source

Fused silica with atomic-level super-smooth surface manufactured by dual-size synergistic nano CeO2 and its highly efficient polishing mechanism

open access: yesMaterials & Design
Fused silica has played a crucial role as high quality transmission/reflection optical components in ultra-precision optical systems, such as high-power lasers, gravitational wave detection, laser gyroscope and ultraviolet lithography systems, which the ...
Zehua Wu   +5 more
doaj   +1 more source

Very high quality factor measured in annealed fused silica

open access: yes, 2004
We present the results of quality factor measurements for rod samples made of fused silica. To decrease the dissipation we annealed our samples. The highest quality factor that we observed was $Q=(2.03\pm0.01)\times10^8$ for a mode at 384 Hz. This is the
Alexandr Ageev   +16 more
core   +1 more source

The size prediction of potential inclusions embedded in the sub-surface of fused silica by damage morphology

open access: yesOpen Physics, 2017
A model for predicting the size ranges of different potential inclusions initiating damage on the surface of fused silica has been presented. This accounts for the heating of nanometric inclusions whose absorptivity is described based on Mie Theory.
Gao Xiang   +7 more
doaj   +1 more source

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