Nonmagnetic UHV Optical Viewports

Abstract

Many atomic physics and frequency metrology applications require nonmagnetic optical viewports for ultra high vacuum (UHV) chambers. We have refined two techniques for producing specialized UHV optical viewports. The first is a weld-in window cell made by brazing an optical blank into a thin weld collar. The second is a mechanical sealing method that relies on crushing a series of thin copper knife-edges.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA485090

Entities

People

  • Christopher R. Ekstrom
  • Scott Crane

Organizations

  • United States Naval Observatory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Assembly
  • Chambers
  • Clocks
  • Frequency
  • High Temperature
  • High Vacuum
  • Joints
  • Laser Welding
  • Low Temperature
  • Materials
  • Optical Coatings
  • Optical Materials
  • Stainless Steel
  • Standards
  • Thermal Expansion
  • Vacuum
  • Vacuum Chambers

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Metallurgy
  • Thin Film Deposition Science.