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Title: Laser Trapping of {sup 225}Ra and {sup 226}Ra with Repumping by Room-Temperature Blackbody Radiation

Abstract

We have demonstrated Zeeman slowing and capture of neutral {sup 225}Ra and {sup 226}Ra atoms in a magneto-optical trap. The intercombination transition {sup 1}S{sub 0}{yields}{sup 3}P{sub 1} is the only quasicycling transition in radium and was used for laser-cooling and trapping. Repumping along the {sup 3}D{sub 1}{yields}{sup 1}P{sub 1} transition extended the lifetime of the trap from milliseconds to seconds. Room-temperature blackbody radiation was demonstrated to provide repumping from the metastable {sup 3}P{sub 0} level. We measured the isotope shift and hyperfine splittings on the {sup 3}D{sub 1}{yields}{sup 1}P{sub 1} transition with the laser-cooled atoms, and set a limit on the lifetime of the {sup 3}D{sub 1} level based on the measured blackbody repumping rate. Laser-cooled and trapped radium is an attractive system for studying fundamental symmetries.

Authors:
; ; ; ; ; ; ;  [1];  [1];  [2]
  1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20957700
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevLett.98.093001; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BLACKBODY RADIATION; CAPTURE; COOLING; LASERS; LIFETIME; MAGNETO-OPTICAL EFFECTS; RADIUM 225; RADIUM 226; SPECTRAL SHIFT; SYMMETRY; TEMPERATURE RANGE 0273-0400 K; TRAPPING; TRAPS; ZEEMAN EFFECT

Citation Formats

Guest, J. R., Scielzo, N. D., Ahmad, I., Bailey, K., Greene, J. P., Holt, R. J., O'Connor, T. P., Potterveld, D. H., Lu, Z.-T., and Department of Physics and the Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637. Laser Trapping of {sup 225}Ra and {sup 226}Ra with Repumping by Room-Temperature Blackbody Radiation. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.093001.
Guest, J. R., Scielzo, N. D., Ahmad, I., Bailey, K., Greene, J. P., Holt, R. J., O'Connor, T. P., Potterveld, D. H., Lu, Z.-T., & Department of Physics and the Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637. Laser Trapping of {sup 225}Ra and {sup 226}Ra with Repumping by Room-Temperature Blackbody Radiation. United States. doi:10.1103/PHYSREVLETT.98.093001.
Guest, J. R., Scielzo, N. D., Ahmad, I., Bailey, K., Greene, J. P., Holt, R. J., O'Connor, T. P., Potterveld, D. H., Lu, Z.-T., and Department of Physics and the Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637. Fri . "Laser Trapping of {sup 225}Ra and {sup 226}Ra with Repumping by Room-Temperature Blackbody Radiation". United States. doi:10.1103/PHYSREVLETT.98.093001.
@article{osti_20957700,
title = {Laser Trapping of {sup 225}Ra and {sup 226}Ra with Repumping by Room-Temperature Blackbody Radiation},
author = {Guest, J. R. and Scielzo, N. D. and Ahmad, I. and Bailey, K. and Greene, J. P. and Holt, R. J. and O'Connor, T. P. and Potterveld, D. H. and Lu, Z.-T. and Department of Physics and the Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637},
abstractNote = {We have demonstrated Zeeman slowing and capture of neutral {sup 225}Ra and {sup 226}Ra atoms in a magneto-optical trap. The intercombination transition {sup 1}S{sub 0}{yields}{sup 3}P{sub 1} is the only quasicycling transition in radium and was used for laser-cooling and trapping. Repumping along the {sup 3}D{sub 1}{yields}{sup 1}P{sub 1} transition extended the lifetime of the trap from milliseconds to seconds. Room-temperature blackbody radiation was demonstrated to provide repumping from the metastable {sup 3}P{sub 0} level. We measured the isotope shift and hyperfine splittings on the {sup 3}D{sub 1}{yields}{sup 1}P{sub 1} transition with the laser-cooled atoms, and set a limit on the lifetime of the {sup 3}D{sub 1} level based on the measured blackbody repumping rate. Laser-cooled and trapped radium is an attractive system for studying fundamental symmetries.},
doi = {10.1103/PHYSREVLETT.98.093001},
journal = {Physical Review Letters},
number = 9,
volume = 98,
place = {United States},
year = {Fri Mar 02 00:00:00 EST 2007},
month = {Fri Mar 02 00:00:00 EST 2007}
}