Ultra-Stable Hg+ Trapped Ion Frequency Standard

Abstract

We are developing a fieldable trapped ion frequency standard based on (199) Hg(+) ions confined in a hybrid rf/dc linear ion trap. This trap permits storage of large numbers of ions with reduced susceptibility to the second-order Doppler effect caused by the rf confining fields. In preliminary measurements we have obtained a stability of 2-3/10(-15) for 10,000 second averaging times. These measurements were carried out with a 120 mHz wide atomic resonance line for the 40.5 GHz clock transition with a second order Doppler shift from the rf trapping field of 6/10(-13).

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA519488

Entities

People

  • G. J. Dick
  • J. D. Prestage
  • L. Maleki

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Clocks
  • Dead Time
  • Detectors
  • Doppler Effect
  • Electric Fields
  • Focal Planes
  • Frequency
  • Frequency Shift
  • Frequency Standards
  • Ion Traps
  • Ions
  • Jet Propulsion
  • Local Oscillators
  • Oscillators
  • Radiation
  • Standards
  • Time Intervals

Fields of Study

  • Physics

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Semiconductor Device Technology