Last edited by Daitaxe
Tuesday, May 5, 2020 | History

2 edition of Optical scatter and damage testing of excimer laser components found in the catalog.

Optical scatter and damage testing of excimer laser components

David Thomas Sheerin

Optical scatter and damage testing of excimer laser components

by David Thomas Sheerin

  • 227 Want to read
  • 29 Currently reading

Published .
Written in English


Edition Notes

Thesis (Ph.D.) - Loughborough University of Technology, 1994.

Statementby David Thomas Sheerin.
ID Numbers
Open LibraryOL19695278M

laser crystals, Q-switches, polarizers, and other optical components employed in pulsed-laser systems. Scope This document provides guidelines for performing one-on-one, laser-induced-damage-threshold tests and pass-fail certification tests for optical components. The procedures described herein are applicable to the testing of optical File Size: KB. In this article, we'll outline what you need to do to stay laser-safety compliant. Update Policies & Procedures When creating or revamping a laser safety program, the first step is to be sure your facility's policies and procedures reflect current ANSI Z standards, and then be sure your current practice reflects these policies and procedures.

The excimer lasers are designed for high power or high energy operation at any of the excimer laser wavelengths (, , , nm). The intra-cavity frequency doubled ion laser systems that use a BBO crystal to produce deep UV output in the range of nm. Extensive range of optics for ultrafast laboratory. Rapid, ns time-resolved imaging and spectroscopy with the . Mirrors for Excimer Lasers For mirrors that are used outside of the excimer laser resonator, the standard coating is usually applied to fused silica substrates. If the mirrors are used inside the resonator, the coatings have to be chlorine or fluorine resistant because they are exposed to the aggressive laser gas.

K. Mann and H. Gerhardt, Set-up of a damage testing facility for excimer laser, Proc. SPIE, () [18] Test method for absorptance of optical laser components, I SO I DIS , [19] by: UV laser optics components are ideal for many applications because of their ability to create small and precise features with minimal damage to surrounding areas. Laser Materials Processing Scribing, cutting, and drilling in ceramics, glass, plastics, and metals.


Share this book
You might also like
Games and Activities with Base Ten Blocks

Games and Activities with Base Ten Blocks

Contribuciones científicas para conmemorar el 75 aniversario del Observatorio del Ebro

Contribuciones científicas para conmemorar el 75 aniversario del Observatorio del Ebro

Gifted and Talented Bindup

Gifted and Talented Bindup

Great true stories of crime, mystery & detection

Great true stories of crime, mystery & detection

Naruto, Vol. 1 (Limited Edition)

Naruto, Vol. 1 (Limited Edition)

Historical radiological assessment

Historical radiological assessment

Yaquina Bar, Bay, and Harbor, Oreg. Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, reports on preliminary examination and survey of Yaquina Bar, Bay, and Harbor, Oreg., including consideration of any proposition for cooperation of local interests.

Yaquina Bar, Bay, and Harbor, Oreg. Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, reports on preliminary examination and survey of Yaquina Bar, Bay, and Harbor, Oreg., including consideration of any proposition for cooperation of local interests.

nature of hydrative changes and cationic shifts in the over-tenderization of beef muscle resulting from irradiation

nature of hydrative changes and cationic shifts in the over-tenderization of beef muscle resulting from irradiation

To maintain the gold standard, etc.

To maintain the gold standard, etc.

South-eastern France.

South-eastern France.

Web tension, web break study, IFRA/SCA.

Web tension, web break study, IFRA/SCA.

Some simple analytics of trade and labor mobility

Some simple analytics of trade and labor mobility

Canada, 1763-1841, immigration and settlement

Canada, 1763-1841, immigration and settlement

Optical scatter and damage testing of excimer laser components by David Thomas Sheerin Download PDF EPUB FB2

Optical scatter and damage testing of excimer laser components. Optical scatter and damage testing of excimer laser components. TZ (GMT) by David T. Sheerin Optical scatter and damage testing of excimer laser components. Categories. Physical Sciences not elsewhere classified Author: David Thomas Sheerin.

Since laser induced damage of optical components has become a severe problem for the development of high power lasers during the last years, great efforts are made to improve the quality of the Damage Testing Facility for Optical Components Using Excimer Laser Radiation | SpringerLinkAuthor: K.

Mann, H. Gerhardt. Optical scatter and damage testing of excimer laser components Author: Sheerin, David Thomas ISNI: X Awarding Body: Loughborough University of Technology Current Institution: Loughborough University Date of Award: Availability of Full Text: Author: David Thomas Sheerin.

Laser induced damage in optical materials: proceedings of a symposium sponsored by the American Society for Testing and Materials and by the National Bureau of Standards United States. National Bureau of Standards, American Society for Testing and Materials, National Institute of Standards and Technology (U.S.).

Using a high power excimer laser, 'S-on-1' damage thresholds were measured at nm for bare UV substrates as well as high- and anti-reflective dielectric coatings, indicating characteristic dependencies on the number of applied laser pulses and pulse repetition by: 4.

Abstract. An instrumentation for total and angle-resolved scattering (ARS) at and nm has been developed at the Fraunhofer Institute in Jena to meet the severe requirements for scattering analysis of deep-and vacuum-ultraviolet optical components.

Extremely low backscattering levels of 10 −6 for the total scattering measurements. Nikolay V. Morozov, Spartak I. Sagitov, and P. Sergeyev "Excimer laser optics", Proc. SPIELaser-Induced Damage in Optical Materials:Excimer lasers Show All Keywords.

RELATED CONTENT. Laser damage resistance of optical components in sub picosecond regime Proceedings of SPIE (November 23 )Cited by: 1. Systems for creation of laser-induced damage images and problems of their optimization [] I.

Troitski Laser damage tests and optical densities of laser goggles [] J. Hue, C. Pelle, P. Garrec, O. Lartigue, F. Baume, J. Rochas SESSION 6 SYMPOSIUM LATE SUBMISSION Coated optics for DUV excimer laser application []. Sample preparation and job shop services are available for a wide variety of material processing using nm, nm, nm, nm, and nm wavelengths.

The Coherent optical systems, modules, and components are manufactured for use with excimer lasers with easy integration into new and existing micromachining.

COMPex. The COMPex excimer laser provides multi-hundred millijoules output and unmatched pulse-to-pulse stability. It is ideal for demanding applications such as solid sampling (LA-ICPMS), material research (PLD), and precise material processing.

Optical scatter and damage testing of excimer laser components. By David T. Sheerin. Download PDF (5 MB) Abstract. A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University Optical scatter and damage testing of excimer laser components.

By David T. Sheerin Author: David T. Sheerin. Laser-Induced Damage in Optical Materials: A mode-mismatched surface thermal lens technique with pulsed top-hat beam excitation and near field detection scheme is developed to measure in situ the thermoelastic response of UV dielectric coatings and bulk materials under excimer laser irradiation.

backscatter needed a high power ultraviolet laser with narrowline output to extend the range of measurements to higher altitude. Located in an observation station on Mount Zugspitze in Germany, researchers modified a watt industrial XeCl excimer laser from Coherent and combined it with larger.

Excimer laser optics are coated or uncoated optical components designed specifically for use at excimer laser output wavelengths, the most common of which are nm (F 2), nm (ArF), nm (KrF), nm (XeCl) and nm (XeF).

Typical excimer laser optics include beam-turning mirrors, laser cavity optics, beamsplitters, lenses, windows and other. The performance of DUV optical components is assessed by measuring both absorption and scatter losses during ArF excimer laser irradiation.

Absolute absorptance is determined by employing a high-resolution calorimetric technique which provides greatly enhanced sensitivity compared to transmissive measurements. Excimer or nm Fluorine lasers can cut any solid material, from Diamond to the cornea of the eye.

The rate of most excimer laser machining processes is determined by the material, the laser wavelength and the average power and /or the repetition rate of the laser, energy is usually not a determining factor. Frank, J., et al., "Automated Pulsed Testing Using a Scatter-Probe Damage Monitor", Laser Induced Damage in Optical Materials;NBS Spec.

Pub. ,71, Setup Of A Damage Testing Facility. The wavelength of Nd:YAG laser is microns, while the wavelength of excimer laser is within microns. The advantage of excimer laser is very clear now.

But what’s its principle. The term Excimer is the short of "excited dimer", which means a compound of two identical species that exist only in excited states. Halina Abramczyk, in Introduction to Laser Spectroscopy, Excimer Lasers.

Excimer lasers are facing strong competition from solid-state lasers, although they still offer the most efficient access to the ultraviolet spectral region—with high energies, and high peak and average powers in pulsed operation.

However, they have some drawbacks, such as poor beam quality. Hence, a laser damage threshold mapping appears very interesting, especially for applications linked to large optical components like the Megajoule project or the National Ignition Facility (N.I.F).

On the test bench used, damage detection with a Nomarski microscope and scattered light measurement are almost equivalent. 2 Characterization of absorption and degradation on optical components for high-power excimer lasers (Invited Paper) [] a new tool for laser damage testing [] J.

Hue, P. Garrec, J. Dijon, P. Lyan, LETI-CEA-DOPT-Couches Minces pour l'Optique (France) CW C02 laser damage in optical components: thermal modeling and.The design of high power UV laser systems is limited to a large extent by the laser-initiated damage performance of transmissive fused silica optical components.

The 3{omega} (i.e., the third harmonic of the primary laser frequency) damage growth mitigation LDRD effort focused on understanding and reducing the rapid growth of laser-initiated surface damage on fused silica .The term LASER is an acronym for Light Amplification by Stimulated Emission of Radiation.

Light can be produced by atomic processes which generate laser light. A laser consists of an optical cavity, a pumping system, and an appropriate lasing medium (Figure III). Figure III Components of a Laser.

A. Optical Cavity.