1 edition of An investigation of laser induced surface damage in glass found in the catalog.
An investigation of laser induced surface damage in glass
Richard David Uyak
Written in English
|The Physical Object|
|Number of Pages||52|
Laser Induced Damage Threshold (LIDT) Test Laser induced damage threshold measurement and tests were performed on a borosilicate glass (BK7 glass). The schematic of the experimental setup for damage test is shown in figure 1. The damage threshold studies have beenCited by: Abstract: Results from experiments on laser-induced damage to surfaces of optically polished glass and fused-silica and thin-film coatings are presented. Measurements were made under proper conditions to characterize actual laser components. Data are given for distributions of thresholds for μm, 1 ns pulses, the influence of coating materials and designs, and effects of surface Cited by:
Influence of polishing and cleaning on the laser-induced damage threshold of substrates and coatings at nm Article (PDF Available) in Optical Engineering 46(2) February with Reads. Laser-induced-damage-threshold tests are performed by using a pulsed laser of known wavelength, pulse length, polarization, and TEM. In this procedure, the laser is located on a stabilized optical table with the beam directed toward a test optic, as shown in figure 1. A helium-neon (He-Ne) laser also may be placed on theFile Size: KB.
Laser induced damage of fused silica is a serious problem for high power laser systems, and damage precursors are mainly induced by manufacturing processes. In this work, fused silica samples were Cited by: 4. Suggested Citation:"LASER-SURFACE DAMAGE."National Research Council. Fundamentals of Damage in Laser gton, DC: The National Academies Press. doi.
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Laser-induced plasma surface damage in a transparent dielectric is investigated. The possible occurrence of unipolar arcing as a damage mechanism in nonconductors is examined. Experiments were conducted using a neodymium glass laser in a Q-switched mode to create a hot plasma.
The plasma damage on both entrance and exit surfaces was : Richard David Uyak. Written by renowned experts in the field, this book concentrates on the major topics of laser-induced damage in optical materials and most specifically addresses research in laser damage that occurs in the bulk and on the surface or the coating of optical components.5/5(1).
A new book brings together top-level experts in the field of laser-induced damage to optics. For science and industry, the laser has many advantages over other light sources -- including narrow linewidth (resulting in high temporal coherence), high wall-plug efficiency, high spatial coherence (high beam quality), and the ability to deliver very high powers (continuous-wave) or energies (pulsed).
An investigation of laser induced surface damage in glass. By Richard David Uyak Get PDF (4 MB)Author: Richard David Uyak. The following chapters are devoted to surfaces and sub-surface damage, coatings, measurement techniques, and special topics such as scaling and the importance of using the correct measurement unit systems.
Laser Induced Damage of Optical Materials is an invaluable resource to those working with optical systems where high laser intensity is a. Dedicated to users and developers of high-powered systems, Laser-Induced Damage in Optical Materials focuses on the research field of laser-induced damage and explores the significant and steady growth of applications for high-power lasers in the academic, industrial, and military arenas.
Written by renowned experts in the field, this book concentr. In this work we study the effect of laser conditioning on laser-induced damage of ion-beam sputtered, anti-reflection coated laser optics with ns-pulsed laser radiation at a wavelength of : Semyon Papernov.
PROCEEDINGS VOLUME Investigation of non-quarter wave design on multilayer optical thin film coatings from a heat transfer point of view Examination of multi-shot laser induced damage on uncoated fused silica substrates at the surface and in the bulk material using P-polarized 1 ns kHz laser pulses at nm.
Introduction. Laser-induced damage (LID) in optical materials plays a significant role in laser-matter interaction phenomena.
This role can be both negative (a factor which limits laser intensity in high-power laser systems or material under study) and positive (providing a tool Cited by: Chapter 4 Fundamentals of Laser-Material Interaction and Application to Multiscale Surface Modiﬁcation Matthew S.
Brown and Craig B. Arnold Abstract Lasers provide the ability to accurately deliver large amounts of energy into conﬁned regions of. Investigation of damage to glass surfaces by high power laser beams is presented in this paper. Surface damage thresholds for K8 glass induced by ps laser pulse at near normal incidence are measured.
The reason for the difference between the entrance and exit damage thresholds is Author: Shao-Xian Meng, Xiaoqin Wang, Fuyi Guan, Haiwu Yu, Zunqi Lin. Nd-doped phosphate glass is the dominant amplifier material used in solid state high average power laser systems.
Surface imperfection and subsurface damage (SSD) of the glass, resulting from the optical fabrication process, limit the increment of laser system energy output.
Thus, it is important to enhance the surface damage threshold of Nd-doped phosphate glass surface. cracked layer on the surface of manufactured components, namely subsurface damage (SSD). The subsurface damage affects the strength, performance and lifetime of components.
As a result, investigation into the subsurface damage is needed. A host of charac-terizing techniques have been developed during the past several decades. texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Laser induced damage in optical materials Item Preview remove-circle Share or Embed This Item.
EMBED EMBED (for Glass, Alexander J. Publication date Collection. Annealing of Induced Damage in Flouride Glass Components HR coatings impurities incident increase interface irradiation J/cm laser beam laser conditioning laser damage thresholds Laser Induced Damage laser pulse laser systems levels LLNL measurements mechanism metal microscope microwave D.
Milam, and BE Newnam, Eds., Laser-Induced. Introduction. The ever-increasing use of high power lasers for application in fields as varied as micro-machining, surgery, surface cleaning and nuclear fusion (see for example,) is strongly limited by the laser-induced damages which appear in the optical limitation may also appear whenever the light is confined in a very small structure, such as integrated optics for Cited by: The measured damage thresholds of this detection system are compared to those obtained by Nomarski/darkfield microscopy.
The local variation of the laser induced damage threshold is correlated to the corresponding photothermal deflection signal, reflectance, and defect density of the coated surfaces.
Laser-Induced Damage in Optical Materials CD-ROM See all 2 formats and editions Hide other formats and editions. Price New from Used from Multimedia CD "Please retry" $ $ — Multimedia CD: $ $ Format: Multimedia CD. More exactly, three ingredients are necessary for visible laser induced damage.
These are adequate laser energy, a mechanism of laser energy absorption and mechanical weakness. For damage growth, the material surrounding a damage site is already mechanically weakened by cracks and probably chemically modified as well.
A summary of recent investigations of surface damage of transparent dielectrics is presented. Damage threshold measurements made on Owens-Illinois ED-2 laser glass at normal incidence and at Brewster’s angle are reported. For nsec pulses at normal incidence, exit surface damage thresholds are typically J/cm 2 for ED-2 glass.
2 | Laser Induced Damage Threshold of Optical Coatings In Figs. 2a and 2b, lasers operating with a single short or long pulse may not have a pulse duration long enough for the material to absorb sufficient light energy for its temperature to reach a threshold where thermal processes occur to damage the material.
However, if the pulseFile Size: KB.Experimental investigation on laser-induced surface damage threshold of Nd-doped phosphate glassCited by: 3.Since no obvious cracks or spots can be observed on the laser irradiated region with a SEM, the typical laser-induced damage site profile and depth on the glass surface are observed with a light interferometric surface by: 5.