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Keywords: laser induced damage
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8194-0532-9
ISBN: 978-0-8194-0532-6
... Absorption and pulsed laser induced damage of antireflective coatings on ZnSe and high reflecting metal mirrors were studied. As deposition materials for the AR-coatings germanium, zinc sulfide, zinc selenide, cadmium selenide and different fluorides were selected. For protecting and enhancing...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-4478-4
ISBN: 978-0-8031-4478-1
... A significant enhancement of the single shot Laser Induced Damage Threshold of CaF 2 and fused silica and a moderate enhancement for GaAs and Al has been observed as the result of laser annealing using an excimer laser operating at 248 nm. This phenomenon is primarily attributed to a reduction...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-4478-4
ISBN: 978-0-8031-4478-1
... In this method, the laser induced damage threshold for a material is obtained by determining the fluence within the damaging beam at a radial distance equal to the radius of the damage spot. The energy profile of the laser pulse is determined by translating a slit across the beam and reading...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4481-4
ISBN: 978-0-8031-4481-1
... excitation of vibration states and creation of absorbing “hot radicals”. Basing on this mechanism we proposed methods of physical modification of polymers with high laser damage resistance comparable with that of silicate glasses and crystals. laser induced damage low-molecular additives in polymers...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4481-4
ISBN: 978-0-8031-4481-1
.... Details of this database are presented in a companion paper. average power beam combining beam profiling damage testing laser fluence measurements laser induced damage thermal accumulation Manuscript Received 12/16/87/sar A New Average-Power Damage Test Facility at LLNL* E. A. Hildum, F...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4481-4
ISBN: 978-0-8031-4481-1
... coatings delamination diffusion wave interfermetry diffusion waves laser induced damage metal coatings nickel coatings optical coatings thermal contact resistance thermal diffusion waves thermal transport thermal waves thin films Manuscript Received 5-24-88 sar B A S I C S T U D I E S OF O P...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4479-2
ISBN: 978-0-8031-4479-8
... with that calculated from the breakdown measurements [1]. external self-action laser induced damage nonlinear refractive index psec pulses yttria stabilized cubic zirconia 1.06 μm Manuscript Received 11-5-86 Direct n2 Measurement in Yttria Stabilized Cubic Zirconia Shekhar Guha,* Nastaran Mansour, and M...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4479-2
ISBN: 978-0-8031-4479-8
... was used to analyze surface contaminants. The data show that the organic contaminants, CH n , derived from hydrocarbon (skin oil) associated with improper parts handling, signifantly reduce the surface damage threshold. co-doped GSGG infrared absorption spectroscopy laser induced damage Nd:Cr:GSGG...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4479-2
ISBN: 978-0-8031-4479-8
.... electron beam evaporation laser induced damage multilayers optical properties post deposition heat treatment TiO 2 and SiO 2 films Manuscript Received 12-29-86 Influence of Deposition and Post Deposition Conditions on Laser Induced Damage in Hlectron Beam Hvaporated TiO2 and SiO2 Films K...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4477-6
ISBN: 978-0-8031-4477-4
... Laser induced damage in a dielectric material is triggered by the presence of a sufficient number of electrons in the conduction band. When these are accelerated by the laser field with phonon assistance, they can lead to an electron avalanche and, in turn, may initiate permanent detectable...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-4477-6
ISBN: 978-0-8031-4477-4
... The temperature dependence of various processes can be extremely important in laser induced damage mechanisms. This has been well known since study in this field began. The ways in which temperature plays a role are both varied and many. However, one must be careful not to attribute too much...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0960-1
ISBN: 978-0-8031-0960-5
.... Absorbing inclusion laser induced damage repetitively pulsed thermal properties STP954-EB/Oct. 1986 An Initial Study of: Manuscript Received The Inclusion Model for Repetitively Pulsed Laser Damage 1-9-84 SAR M.R. Lange* and J.K. stiver Institute of Modern Optics, University of New Mexico, Albuquerque...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1985
ISBN-10: 0-8031-0930-X
ISBN: 978-0-8031-0930-8
... The influence of the thermal and optical properties of thin films on the damage threshold for pulsed laser induced damage is studied via the spherical impurity damage model. A previous study employing the geometric cross section of the impurity as the absorption cross section of the incident...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1985
ISBN-10: 0-8031-0930-X
ISBN: 978-0-8031-0930-8
... irradiation at prf's up to 100 Hz. Results are presented on Ge, ZnSe, ZnS, GaAs, CdTe, NaCl, KCl substrates and coated components at 10.6 μm and PMMA, fused silicon, Nd:laser glass and coated components at 1.06 μm. Laser induced damage 1.06 μm 10.6 μm single shot Cummulative PRF dependence STP911...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1985
ISBN-10: 0-8031-0930-X
ISBN: 978-0-8031-0930-8
... A study of pulsed laser induced damage to thin films is conducted within the context of the impurity-dominated damage model in which the thin film component of the model is emphasized. In this case, a cylindrical impurity is embedded in a single thin film layer between a free surface...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1983
ISBN-10: 0-8031-0708-0
ISBN: 978-0-8031-0708-3
... Laser-induced damage thresholds of single crystal LiIO 3 have been studied using pico-second pulses at 1.06 μm and 0.53 μm. These thresholds depend on wavelength, crystal orientation, and on the number of times the sample has been irradiated. In addition, the doubling efficiency at high...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1983
ISBN-10: 0-8031-0708-0
ISBN: 978-0-8031-0708-3
... to be the development of a fine scale (1 μm) microstructure on the copper surface. CO 2 lasers grazing incident laser induced damage metal mirrors multiple-shot threshold STP799-EB/Sep. 1983 Damage Thresholds to Metal Mirrors by Short-Pulse CO2 Laser Radiation* J. F. Figueira, S. J. Thomas and R. F...