0

Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Methods for mitigating growth of laser-initiated surface damage on DKDP optics at 351 nm

[+] Author Affiliations
Lawrence W. Hrubesh, Raymond M. Brusasco, Walter Grundler, Mary A. Norton, Eugene E. Donohue, William A. Molander, Samuel L. Thompson, Steven R. Strodtbeck, Pamela K. Whitman, Michael D. Shirk, Paul J. Wegner, Mike C. Nostrand, Alan K. Burnham

Lawrence Livermore National Lab. (USA)

Proc. SPIE 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization, 180 (May 28, 2003); doi:10.1117/12.472047
Text Size: A A A
From Conference Volume 4932

  • Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization
  • Gregory J. Exarhos; Arthur H. Guenther; Norbert Kaiser; Keith L. Lewis; M. J. Soileau; Christopher J. Stolz; Adolf Giesen; Horst Weber
  • Boulder, CO | September 16, 2002

abstract

We report an experimental investigation of mitigating surface damage growth at 351 nm for machine-finished DKDP optics. The objective was to determine which methods could be applied to pre-initiated or retrieved-from-service optics, in order to stop further damage growth for large aperture DKDP optics used in high-peak-power laser applications. The test results, and the evaluation thereof, are presented for several mitigation methods applied to DKDP surface damage. The mitigation methods tested were CW-CO2 laser processing, aqueous wet-etching, short-pulse laser ablation, and micro-machining. We found that micro-machining, using a single crystal diamond tool to completely remove the damage pit, produces the most consistent results to halt the growth of surface damage on DKDP. We obtained the successful mitigation of laser-initiated surface damage sites as large as 0.14 mm diameter, for up to 1000 shots at 351 nm and fluences in the range of 2 to 13 J/cm2, ≈ 11 ns pulse length. Data obtained to-date indicates that micro-machining is the preferred method to process large-aperture optics.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Lawrence W. Hrubesh ; Raymond M. Brusasco ; Walter Grundler ; Mary A. Norton ; Eugene E. Donohue, et al.
"Methods for mitigating growth of laser-initiated surface damage on DKDP optics at 351 nm", Proc. SPIE 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization, 180 (May 28, 2003); doi:10.1117/12.472047; http://dx.doi.org/10.1117/12.472047


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
 

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


Buy this article ($18 for members, $25 for non-members).
Sign In