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Improved laser induced damage thresholds of Ar ion implanted fused silica at different ion fluences
- Source :
- Applied Surface Science. 471:786-794
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- In this work, effects of 10 keV argon ion implantation on laser-induced damage threshold (LIDT) of fused silica were systematically investigated with ion fluences ranged from 1 × 1016 ions/cm2 to 1 × 1018 ions/cm2. Results show that only when the ion fluence increases above 1 × 1017 ions/cm2, the surface roughness apparently increases due to the formation of argon bubbles in the surface of fused silica. The concentration of defects decreases with the increased fluences up to 1 × 1017 ions/cm2 but then increases further, especially for the oxygen deficient center (ODC) defect. Based on the nanoindentation test results, Ar ion implantation generates large compressive stress and strengthens the surface of fused silica by surface densification. With the increase of the Ar ion fluences, the LIDTs of the samples increase due to the increases in both surface compressive stress and defects annihilation. However, at higher ion fluences, the increase of the densities of defects and argon bubbles are identified as the key reasons for the decrease of the LIDTs. Therefore, Ar ion implantation can improve the LIDTs of fused silica at moderate fluences.
- Subjects :
- Materials science
Physics::Instrumentation and Detectors
Physics::Medical Physics
F200
Analytical chemistry
General Physics and Astronomy
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
01 natural sciences
Ion
law.invention
Physics::Plasma Physics
law
Surface roughness
Argon
Surfaces and Interfaces
General Chemistry
Nanoindentation
021001 nanoscience & nanotechnology
Condensed Matter Physics
Laser
Ion fluence
0104 chemical sciences
Surfaces, Coatings and Films
Ion implantation
Compressive strength
chemistry
0210 nano-technology
Subjects
Details
- ISSN :
- 01694332
- Volume :
- 471
- Database :
- OpenAIRE
- Journal :
- Applied Surface Science
- Accession number :
- edsair.doi.dedup.....c496e97c3712992fc0afa3fc0655284c