Damage threshold of fused silica
WebDec 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 … WebHigh damage threshold; Select fused silica; Low wavefront distortion; Hard refractory coatings; Ultrafast Plate Beamsplitters. Series Features; FemtoOptics™ P Polarized Beamsplitters: Optimized for P polarization at 45 ͦ angle of incidence; Choice of 67%, 76%, 80% or 90% splitting ratios;
Damage threshold of fused silica
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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 ... 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. 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 …
WebDec 22, 1998 · A study was conducted to understand the effects of etch depth on the damage threshold of fused silica substrates. The study used a 355 nm, 7.5 ns, 10 Hz Nd:YAG laser to damage test fused silica optics through various wet etch processing steps. Inspection of the surface quality was performed with Nomarski microscopy and … WebJul 1, 2024 · The damage threshold of the gold film on fused silica was 0.64 J/cm 2, with the typical damage morphology of thermal ablation and melting; the damage threshold of the gold film on photoresist was 0.30 J/cm 2, with the typical damage morphology of blisters or peeling off. In order to better understand the impact of the substrate on the ...
WebFor various applications, one needs to select optical components with a sufficiently high optical damage threshold (LIDT). On the other hand, ... “Femtosecond laser modification of fused silica: the effect of writing …
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 …
WebApr 20, 1998 · Scratches of measured width were produced on the surface of a IV grade fused silica window using a diamond tip. Two scratch morphologies were observed: plastic and brittle. The scratches were irradiated with a 355 nm laser pulse. The laser-induced damage threshold (LIDT) of the unscratched output surface was 15 J/cm2 at 3-ns. The … fitbit challenges goneWebOct 31, 2007 · We present an experimental and numerical study of the damage and ablation thresholds at the surface of a dielectric material, e.g., fused silica, using short pulses ranging from 7 to 300 fs. The relevant numerical criteria of damage and ablation thresholds are proposed consistently with experimental observations of the laser irradiated zone. fitbit challengeWebSep 1, 2015 · In this paper, we describe recent advances in improving the 3Ï damage initiation performance of laboratory-scale zirconium oxide and cerium oxide conventionally finished fused silica optics via ... fitbit ce watchWebMay 1, 2008 · Sandia researcher Arlee Smith and colleagues measured optical damage thresholds of bulk fused silica at 1064 nm for 8 ns pulses from a single-mode Q -switched laser and 14 ps pulses from a mode-locked Q -switched laser focused to 7.5 mm spots … fitbit challenges on apple watchWebThe thresholds are sharp and reproducible. For the 8 ns pulses the bulk threshold irradiance is 4.75 ± 0.25 kW/μm2. The threshold is approximately three times higher for … fitbit challenge appWebJun 23, 2024 · Laser-induced damage threshold is the main limitation for fused silica optics in high-power laser applications. The existence of various defects near the surface … fitbit change email address on accountWebreduction in the surface damage threshold of the fused silica. 1/2. Recently, a research team from the Shanghai Institute of Optics and Fine can fireplace ash be used in the garden