Damage threshold of fused silica
WebFUSED SILICA Webreduction in the surface damage threshold of the fused silica. 1/2. Recently, a research team from the Shanghai Institute of Optics and Fine
Damage threshold of fused silica
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WebThe essential results of a carefully controlled experimental investigation of the effect of roughness on laser-induced surface damage thresholds in fused silica are reported. … WebDec 1, 2015 · Laser damage to fused silica continues a main issue of high-power/energy laser systems. HF-based etching technique is known to mitigate laser damage initiation and growth under UV laser illumination. ... As a result, improving the laser-induced damage threshold (LIDT) of fused silica optics contributes to the enhancement of the overall ...
WebJun 21, 2010 · The statistical damage thresholds of three kinds of common scratches are obtained through raster scanning at different laser fluences. The results show that the … WebAug 3, 2016 · After 100 min HF etching, the fused silica was removed 20 um, and from the magenta line in Fig. 5A, we can see the 0% laser damage threshold of the sample is …
WebMay 20, 2013 · The results show that Cerium element and SSD both have a good correlation with laser-induced damage thresholds and damage density. Research results evaluate process technology of fused silica optics in China at present. Furthermore, the results can provide technique support for improving laser induced damage performance … WebDec 3, 1996 · The silica windows were then illuminated repetitively using a 3-ns, 355 nm and an 8.6-ns, 1064 nm laser. The tests were conducted at near normal incidence with particles on input and output surfaces of the windows. During the first shot, a plasma ignited at the metal particle and damage initiated on the fused silica surface.
WebLaser Damage Threshold *1 4.0J/cm 2: Weight: 0.47kg : Availability: Please contact *1 Laser pulse width ; 10ns , Repetition frequency ; 20Hz *2 The transmittance of the beam expander differs depending on the wavelength and/or input beam diameter.
WebFor example, fused silica does not seem to demonstrate any correlation between the number of shots and bulk damage threshold. 8 It is useful … iot navy acronymWebThis paper reports the results of a study to determine the degrading effects of flowing dye solvents on the laser damage threshold of fused-silica windows at 308nm. Thresholds were measured at the SiO/sub 2/solvent interface in a test cell. Bare SiO/sub 2/ tested in air at 308nm (20ns) typically exhibits a threshold ranging from 4 to 10 Jcm/sup ... onward small businessWebDec 1, 2024 · The damage thresholds of treated fused silica samples were tested with the same laser parameters. The test facility was a frequency-tripled Nd: YAG laser, which … onwards liverpoolWebFigure 1(a) shows the transmission through fused silica as a function of the incident pulse intensity (if the focus were in vacuum) for pulses of duration between 43 and onwards man concilWebSun Laxi found that RIE technology could significantly improve the laser induced damage threshold (LIDT) of fused silica optics . Under the conditions of 355 nm wavelength and a single longitudinal mode with about 3 ns (full wave at half maximum, FWHM), the 0 probability damage threshold could reach to 7.5 J/cm 2 after the RIE process. J. onwards lingueeWebLaser damage in fused silica, particularly ultraviolet laser damage, is still a key problem limiting the development of high-power laser systems. In this Letter, a combined process of chemical etching and CO2 laser polishing was applied to ground fused silica. A super-smooth surface with a root-mean-square roughness of 0.25 nm was achieved through … onwards norfolkWebThe essential results of a carefully controlled experimental investigation of the effect of roughness on laser-induced surface damage thresholds in fused silica are reported. Sets of fused silica samples were subjected to several surface preparations such that rms surface roughness values within each set varied over two orders of magnitude. A plot of … onwards login