Observation of Query Pulse Length Dependent Ramsey Interference in Rubidium Vapor Using Pulsed Raman Excitation

Abstract

We report observation of query pulse length dependent Ramsey interference (QPLD-RI), using pulsed Raman excitation in rubidium vapor. This is observed when a long, attenuated query pulse is used during pulsed Raman excitation. We explain the physical mechanism behind the QPLDRI using a Bloch vector model. We also use numerical solutions to time-dependent density matrix equations to simulate this interference effect showing qualitative agreement with experimental results. Presence of such interference could create a potential source of error in a vapor cell Raman clock constructed using frequency-domain Ramsey interference (FDRI).

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Document Details

Document Type
Technical Report
Publication Date
Nov 07, 2011
Accession Number
ADA552040

Entities

People

  • F. K. Fatemi
  • G. S. Pati
  • M. S. Shahriar

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acousto-Optic Modulators
  • Atomic Beams
  • Atomic Clocks
  • Detection
  • Elements
  • Engineering
  • Equations
  • Excitation
  • Frequency
  • Frequency Domain
  • Ground State
  • Laser Spectroscopy
  • Magnetic Fields
  • Observation
  • Optical Lattices
  • Oscillation
  • Waveplates

Fields of Study

  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Radio communications and signal processing.