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Correlation Of Laser Induced Damage To Phase Objects In Bulk Fused Silica
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Book Synopsis Correlation of Laser-Induced Damage to Phase Objects in Bulk Fused Silica by : M. A. Johnson
Download or read book Correlation of Laser-Induced Damage to Phase Objects in Bulk Fused Silica written by M. A. Johnson and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Optical Sciences Laser (OSL) Upgrade facility, described in last year's proceedings, is a kJ-class, large aperture (100cm{sup 2}) laser system that can accommodate prototype optical components for large-scale inertial confinement fusion lasers. High-energy operation of such lasers is often limited by damage to the optical components. Recent experiments on the OSL Upgrade facility using fused silica components at 4 J/cm{sup 2} (351-nm, 3-ns) have created output surface and bulk damage sites that have been correlated to phase objects in the bulk of the material. Optical Path Difference (OPD) measurements of the phase defects indicate the probability of laser-induced damage is strongly dependent on OPD.
Book Synopsis Laser Induced Damage in Optical Materials by :
Download or read book Laser Induced Damage in Optical Materials written by and published by . This book was released on 1972 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials by :
Download or read book Laser Induced Damage in Optical Materials written by and published by . This book was released on 1977 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials by : Brian E. Newnam
Download or read book Laser Induced Damage in Optical Materials written by Brian E. Newnam and published by ASTM International. This book was released on 1986 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Correlation of Polishing-induced Shallow Subsurface Damages with Laser-induced Gray Haze Damages in Fused Silica Optics by :
Download or read book Correlation of Polishing-induced Shallow Subsurface Damages with Laser-induced Gray Haze Damages in Fused Silica Optics written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Laser-induced damage in fused silica optics greatly restricts the performances of laser facilities. Gray haze damage, which is always initiated on ceria polished optics, is one of the most important damage morphologies in fused silica optics. In this paper, the laser-induced gray haze damages of four fused silica samples polished with CeO2, Al2 O3, ZrO2, and colloidal silica slurries are investigated. Four samples all present gray haze damages with much different damage densities. Then, the polishing-induced contaminant and subsurface damages in four samples are analyzed. The results reveal that the gray haze damages could be initiated on the samples without Ce contaminant and are inclined to show a tight correlation with the shallow subsurface damages.
Book Synopsis Time-resolved Imaging of Material Response During Laser-induced Bulk Damage in SiO2 by :
Download or read book Time-resolved Imaging of Material Response During Laser-induced Bulk Damage in SiO2 written by and published by . This book was released on 2008 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on time resolved imaging of the dynamic events taking place during laser-induced damage in the bulk of fused silica samples with nanosecond temporal resolution and one micron spatial resolution. These events include: shock/pressure wave formation and propagation, transient absorption, crack propagation and formation of residual stress fields. The work has been performed using a time-resolved microscope system that utilizes a probe pulse to acquire images at delay times covering the entire timeline of a damage event. Image information is enhanced using polarized illumination and simultaneously recording the two orthogonal polarization image components. For the case of fused silica, an electronic excitation is first observed accompanied by the onset of a pressure wave generation and propagation. Cracks are seen to form early in the process and reach their final size at about 25 ns into the damage event. In addition, changes that in part are attributed to transient absorption in the modified material are observed for delays up to about 200 microseconds.
Book Synopsis Laser Induced Damage in Optical Materials, 1986 by : Harold Earl Bennett
Download or read book Laser Induced Damage in Optical Materials, 1986 written by Harold Earl Bennett and published by . This book was released on 1988 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser-induced Damage in Optical Materials, 1990 by : Harold Earl Bennett
Download or read book Laser-induced Damage in Optical Materials, 1990 written by Harold Earl Bennett and published by ASTM International. This book was released on 1991 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of meeting -- Materials and measurements -- Surfaces and mirrors -- Thin films -- Fundamental mechanisms -- Presented by title only (papers not presented at conference).
Book Synopsis Laser Induced Damage in Optical Materials, 1977 by :
Download or read book Laser Induced Damage in Optical Materials, 1977 written by and published by . This book was released on 1978 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials, 1981 by :
Download or read book Laser Induced Damage in Optical Materials, 1981 written by and published by . This book was released on 1983 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials, 1979 by : Harold Earl Bennett
Download or read book Laser Induced Damage in Optical Materials, 1979 written by Harold Earl Bennett and published by . This book was released on 1980 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials: 1983 by : Harold Earl Bennett
Download or read book Laser Induced Damage in Optical Materials: 1983 written by Harold Earl Bennett and published by ASTM International. This book was released on 1985 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser-Induced Damage of Optical Materials by : Roger M. Wood
Download or read book Laser-Induced Damage of Optical Materials written by Roger M. Wood and published by CRC Press. This book was released on 2003-08-01 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The laser power handling capacities of optical systems are determined by the physical properties of their component materials. At low intensity levels these factors are not important, but an understanding of damage mechanisms is fundamental to good design of laser products operating at high power. Laser Induced Damage of Optical Materials presents
Book Synopsis Laser Induced Damage in Optical Materials: 1984 by : U.S Department fo Commerce
Download or read book Laser Induced Damage in Optical Materials: 1984 written by U.S Department fo Commerce and published by ASTM International. This book was released on 1986 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Phase Instabilities in the Early Material Response During Laser-induced Breakdown in Bulk Fused Silica by :
Download or read book The Role of Phase Instabilities in the Early Material Response During Laser-induced Breakdown in Bulk Fused Silica written by and published by . This book was released on 2011 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Induced Damage in Optical Materials: 1972 by : Alexander J. Glass
Download or read book Laser Induced Damage in Optical Materials: 1972 written by Alexander J. Glass and published by . This book was released on 1972 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-Resolved Imaging of Material Response Following Laser-Induced Breakdown in the Bulk and Surface of Fused Silica by :
Download or read book Time-Resolved Imaging of Material Response Following Laser-Induced Breakdown in the Bulk and Surface of Fused Silica written by and published by . This book was released on 2010 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical components within high energy laser systems are susceptible to laser-induced material modification when the breakdown threshold is exceeded or damage is initiated by pre-existing impurities or defects. These modifications are the result of exposure to extreme conditions involving the generation of high temperatures and pressures and occur on a volumetric scale of the order of a few cubic microns. The response of the material following localized energy deposition, including the timeline of events and the individual processes involved during this timeline, is still largely unknown. In this work, we investigate the events taking place during the entire timeline in both bulk and surface damage in fused silica using a set of time-resolved microscopy systems. These microscope systems offer up to 1 micron spatial resolution when imaging static or dynamic effects, allowing for imaging of the entire process with adequate temporal and spatial resolution. These systems incorporate various pump-probe geometries designed to optimize the sensitivity for detecting individual aspects of the process such as the propagation of shock waves, near-surface material motion, the speed of ejecta, and material transformations. The experimental results indicate that the material response can be separated into distinct phases, some terminating within a few tens of nanoseconds but some extending up to about 100 microseconds. Overall the results demonstrate that the final characteristics of the modified region depend on the material response to the energy deposition and not on the laser parameters.
