Collisional Relaxation in an Extended-Pulse Photon Echo: Weak-Field Limit

Abstract

The effect of velocity-changing collisions in an extended-pulse photon echo is studied. In an extended-pulse photon, the second excitation pulse has a duration comparable with the relaxation time of an atomic system. An analytic solution of the quantum-mechanical transport equation is presented in the perturbation-theory limit and applied to the extended-pulse photon echo. It is found that the decay rate of the echo signal due to velocity-changing collisions is significantly modified by the variation of the second pulse's duration. The results are compared with those of conventional theories of two- and three-pulse echoes using temporally narrow excitation pulses. A physical interpretation of the results is given using both time- and frequency-domain arguments. Reprints. (JHD)

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1989
Accession Number
ADA213105

Entities

People

  • P. R. Berman
  • Ru-wang Sung

Organizations

  • New York University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude
  • Boltzmann Equation
  • Collisions
  • Diagrams
  • Differential Equations
  • Emission
  • Equations
  • Excitation
  • Frequency
  • Frequency Domain
  • Linear Differential Equations
  • New York
  • Perturbation Theory
  • Perturbations
  • Phase Diagrams
  • Phase Shift
  • Time Intervals

Fields of Study

  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Radar Systems Engineering.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots