Optical pumping of high-density Rb with a broadband dye laser and GaAlAs diode laser arrays

Application to He3 polarization

Mark E. Wagshul, T. E. Chupp

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

We have studied laser optical pumping of Rb at densities up to 4×1014 atoms/cm3 and produced polarized He3 by spin exchange with Rb. Numerical calculations show that for a high-density Rb vapor GaAlAs diode laser arrays can provide results similar to those obtained with a broadband Kr+-ion dye-laser system. We have confirmed these calculations with measurements using a 40-GHz full width at half maximum bandwidth dye laser and 100- and 500-mW GaAlAs diode laser arrays (Spectra Diode Labs Array Nos. SDL-2410C and SDL-2450C). We have optically pumped Rb of density [Rb]=4×1014 atoms/cm3, and we have measured up to 70% He3 polarization in a 4-cm3 volume with 600 mW from the dye laser. With the diode laser arrays, we have pumped with 30 and 300 mW with results comparable to those obtained with the dye laser. With a 1-W diode laser array, we anticipate 70-80 % He3 polarization in a 4-cm3 volume.

Original languageEnglish (US)
Pages (from-to)4447-4454
Number of pages8
JournalPhysical Review A
Volume40
Issue number8
DOIs
StatePublished - 1989
Externally publishedYes

Fingerprint

laser arrays
optical pumping
dye lasers
semiconductor lasers
diodes
broadband
polarization
spin exchange
atoms
vapors
bandwidth
lasers
ions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Optical pumping of high-density Rb with a broadband dye laser and GaAlAs diode laser arrays : Application to He3 polarization. / Wagshul, Mark E.; Chupp, T. E.

In: Physical Review A, Vol. 40, No. 8, 1989, p. 4447-4454.

Research output: Contribution to journalArticle

@article{a7cbf029921248f88a8769293ace49b4,
title = "Optical pumping of high-density Rb with a broadband dye laser and GaAlAs diode laser arrays: Application to He3 polarization",
abstract = "We have studied laser optical pumping of Rb at densities up to 4×1014 atoms/cm3 and produced polarized He3 by spin exchange with Rb. Numerical calculations show that for a high-density Rb vapor GaAlAs diode laser arrays can provide results similar to those obtained with a broadband Kr+-ion dye-laser system. We have confirmed these calculations with measurements using a 40-GHz full width at half maximum bandwidth dye laser and 100- and 500-mW GaAlAs diode laser arrays (Spectra Diode Labs Array Nos. SDL-2410C and SDL-2450C). We have optically pumped Rb of density [Rb]=4×1014 atoms/cm3, and we have measured up to 70{\%} He3 polarization in a 4-cm3 volume with 600 mW from the dye laser. With the diode laser arrays, we have pumped with 30 and 300 mW with results comparable to those obtained with the dye laser. With a 1-W diode laser array, we anticipate 70-80 {\%} He3 polarization in a 4-cm3 volume.",
author = "Wagshul, {Mark E.} and Chupp, {T. E.}",
year = "1989",
doi = "10.1103/PhysRevA.40.4447",
language = "English (US)",
volume = "40",
pages = "4447--4454",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "8",

}

TY - JOUR

T1 - Optical pumping of high-density Rb with a broadband dye laser and GaAlAs diode laser arrays

T2 - Application to He3 polarization

AU - Wagshul, Mark E.

AU - Chupp, T. E.

PY - 1989

Y1 - 1989

N2 - We have studied laser optical pumping of Rb at densities up to 4×1014 atoms/cm3 and produced polarized He3 by spin exchange with Rb. Numerical calculations show that for a high-density Rb vapor GaAlAs diode laser arrays can provide results similar to those obtained with a broadband Kr+-ion dye-laser system. We have confirmed these calculations with measurements using a 40-GHz full width at half maximum bandwidth dye laser and 100- and 500-mW GaAlAs diode laser arrays (Spectra Diode Labs Array Nos. SDL-2410C and SDL-2450C). We have optically pumped Rb of density [Rb]=4×1014 atoms/cm3, and we have measured up to 70% He3 polarization in a 4-cm3 volume with 600 mW from the dye laser. With the diode laser arrays, we have pumped with 30 and 300 mW with results comparable to those obtained with the dye laser. With a 1-W diode laser array, we anticipate 70-80 % He3 polarization in a 4-cm3 volume.

AB - We have studied laser optical pumping of Rb at densities up to 4×1014 atoms/cm3 and produced polarized He3 by spin exchange with Rb. Numerical calculations show that for a high-density Rb vapor GaAlAs diode laser arrays can provide results similar to those obtained with a broadband Kr+-ion dye-laser system. We have confirmed these calculations with measurements using a 40-GHz full width at half maximum bandwidth dye laser and 100- and 500-mW GaAlAs diode laser arrays (Spectra Diode Labs Array Nos. SDL-2410C and SDL-2450C). We have optically pumped Rb of density [Rb]=4×1014 atoms/cm3, and we have measured up to 70% He3 polarization in a 4-cm3 volume with 600 mW from the dye laser. With the diode laser arrays, we have pumped with 30 and 300 mW with results comparable to those obtained with the dye laser. With a 1-W diode laser array, we anticipate 70-80 % He3 polarization in a 4-cm3 volume.

UR - http://www.scopus.com/inward/record.url?scp=0001661323&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001661323&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.40.4447

DO - 10.1103/PhysRevA.40.4447

M3 - Article

VL - 40

SP - 4447

EP - 4454

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 8

ER -