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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 9 — Mar. 20, 2000
  • pp: 1405–1420

Spatial filter pinhole development for the National Ignition Facility

James E. Murray, David Milam, Charles D. Boley, Kent G. Estabrook, and John A. Caird  »View Author Affiliations


Applied Optics, Vol. 39, Issue 9, pp. 1405-1420 (2000)
http://dx.doi.org/10.1364/AO.39.001405


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Abstract

We present results from a major experimental effort to understand the behavior of spatial filter pinholes and to identify and demonstrate a pinhole that will meet the requirements of the National Ignition Facility (NIF). We find that pinhole performance depends significantly on geometry and material. Cone pinholes are found to stay open longer and to cause less backreflection than pinholes of more conventional geometry. We show that a ±150-µrad stainless-steel cone pinhole will pass a full-energy NIF ignition pulse with required margins for misalignment and for smoothing by spectral dispersion. On the basis of a model fitted to experimental results, a ±125-µrad stainless-steel cone pinhole is also projected to meet these requirements.

© 2000 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(320.4240) Ultrafast optics : Nanosecond phenomena
(330.6110) Vision, color, and visual optics : Spatial filtering
(350.5400) Other areas of optics : Plasmas

History
Original Manuscript: August 16, 1999
Revised Manuscript: January 10, 2000
Published: March 20, 2000

Citation
James E. Murray, David Milam, Charles D. Boley, Kent G. Estabrook, and John A. Caird, "Spatial filter pinhole development for the National Ignition Facility," Appl. Opt. 39, 1405-1420 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-9-1405


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References

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