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Title: Atomic Homodyne Detection of Weak Atomic Transitions

Abstract

We have developed a two-color, two-pathway coherent control technique to detect and measure weak optical transitions in atoms by coherently beating the transition amplitude for the weak transition with that of a much stronger transition. We demonstrate the technique in atomic cesium, exciting the 6s{sup 2}S{sub 1/2}{yields}8s{sup 2}S{sub 1/2} transition via a strong two-photon transition and a weak controllable Stark-induced transition. We discuss the enhancement in the signal-to-noise ratio for this measurement technique over that of direct detection of the weak transition rate, and project future refinements that may further improve its sensitivity and application to the measurement of other weak atomic interactions.

Authors:
 [1];  [1];  [2]
  1. School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20861636
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevLett.98.043001; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; CESIUM; INTERACTIONS; PHOTONS; SIGNAL-TO-NOISE RATIO; TRANSITION AMPLITUDES

Citation Formats

Gunawardena, Mevan, Elliott, D. S., and Department of Physics, Purdue University, West Lafayette, Indiana 47907. Atomic Homodyne Detection of Weak Atomic Transitions. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.043001.
Gunawardena, Mevan, Elliott, D. S., & Department of Physics, Purdue University, West Lafayette, Indiana 47907. Atomic Homodyne Detection of Weak Atomic Transitions. United States. doi:10.1103/PHYSREVLETT.98.043001.
Gunawardena, Mevan, Elliott, D. S., and Department of Physics, Purdue University, West Lafayette, Indiana 47907. Fri . "Atomic Homodyne Detection of Weak Atomic Transitions". United States. doi:10.1103/PHYSREVLETT.98.043001.
@article{osti_20861636,
title = {Atomic Homodyne Detection of Weak Atomic Transitions},
author = {Gunawardena, Mevan and Elliott, D. S. and Department of Physics, Purdue University, West Lafayette, Indiana 47907},
abstractNote = {We have developed a two-color, two-pathway coherent control technique to detect and measure weak optical transitions in atoms by coherently beating the transition amplitude for the weak transition with that of a much stronger transition. We demonstrate the technique in atomic cesium, exciting the 6s{sup 2}S{sub 1/2}{yields}8s{sup 2}S{sub 1/2} transition via a strong two-photon transition and a weak controllable Stark-induced transition. We discuss the enhancement in the signal-to-noise ratio for this measurement technique over that of direct detection of the weak transition rate, and project future refinements that may further improve its sensitivity and application to the measurement of other weak atomic interactions.},
doi = {10.1103/PHYSREVLETT.98.043001},
journal = {Physical Review Letters},
number = 4,
volume = 98,
place = {United States},
year = {Fri Jan 26 00:00:00 EST 2007},
month = {Fri Jan 26 00:00:00 EST 2007}
}