SYMPOSIA PAPER Published: 01 January 1986
STP23105S

Laser Damage Studies of Several Methacrylate Polymeric Materials

Source

The bulk damage resistance of several acrylic polymers was investigated with a 1.06 μm wavelength pulsed Nd:YAG laser having a pulse length of 8–9 ns and a spot size of 33 μm. These materials were synthesized in bulk form using either thermal or ultraviolet initiation after extensive distillation and/or filtration at the monomers with sub-micron porosity membrane filters. Samples of pure poly(methyl)methacrylate, poly(ethyl)methacrylate and poly(cyclohexyl)methacrylate as well as plasticized polymers were studied. Details of synthesis methods and results of the damage measurements are presented, and the influence of synthesis methods on damage properties is discussed. In addition, a simple technique that uses scattered, depolarized helium-neon laser light to quickly estimate the impurity content of these samples is described and its ability to predict simple-shot damage resistance is discussed. Finally, a somewhat different method of analyzing multiple-shot damage data is applied and the results are discussed.

Author Information

O'Connell, RM
Ellis, RV
Romberger, AB
Deaton, TF
Siegenthaler, KE
Shaffer, AA
Mullins, BW
Saito, TT
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Details
Developed by Committee: F01
Pages: 49–58
DOI: 10.1520/STP23105S
ISBN-EB: 978-0-8031-4997-7
ISBN-13: 978-0-8031-0960-5