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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 5 — Mar. 1, 1984
  • pp: 682–688

Single- and multiple-shot laser-damage properties of commercial grade PMMA

Robert M. O’Connell, Terrence F. Deaton, and Theodore T. Saito  »View Author Affiliations


Applied Optics, Vol. 23, Issue 5, pp. 682-688 (1984)
http://dx.doi.org/10.1364/AO.23.000682


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Abstract

In this paper, we describe a facility to study laser damage in plastics and present single- and multiple-shot bulk damage results obtained in commercial polymethylmethacrylate with 1.06-μm wavelength, 8-nsec FWHM, 45-μm spot diameter pulses. The measured single-shot peak fluence damage threshold is 41 J/cm2. Multiple-shot damage was studied at fluence levels as low as 6% of the single-shot damage threshold. Scattered collinear He–Ne laser light was found to be a very reliable indicator of damage, especially at the lower fluence levels. Histograms of damage statistics and 100× microscopy of the material after illumination with fewer than the critical numbers of pulses required for damage illustrate the cumulative nature of the damage process.

© 1984 Optical Society of America

History
Original Manuscript: August 20, 1983
Published: March 1, 1984

Citation
Robert M. O’Connell, Terrence F. Deaton, and Theodore T. Saito, "Single- and multiple-shot laser-damage properties of commercial grade PMMA," Appl. Opt. 23, 682-688 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-5-682

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