Spectroscopy of intercombination transition {sup 1}S{sub 0} – {sup 3}P{sub 1} for secondary cooling of strontium atoms

Journal Article · Sat Feb 28 04:00:00 EST 2015 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2015V045N02ABEH015638· OSTI ID:22551311

Khabarova, K Yu; Kolachevsky, N N ^[1]; Galyshev, A A; Strelkin, S A; Kostin, A S; Belotelov, G S; Berdasov, O I; Gribov, A; Slyusarev, S N ^[2]

---

1. P N Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
2. All-Russian Research Institute of Physical, Engineering and Radio Technical Measurements, Mendeleevo, Moscow region (Russian Federation)

In the framework of the project aimed at creating an optical standard on cold Sr atoms we have realised sub-Doppler spectroscopy of the intercombination transition {sup 1}S{sub 0} – {sup 3}P{sub 1} (689 nm) in a cell with Sr vapour and in a cloud of atoms loaded in a magneto- optical trap (MOT). By measuring Zeeman splitting of the {sup 3}P{sub 1} level in the magnetic field of the MOT we have succeeded in fine adjustment of the MOT relative to a minimum of the magnetic field, which is necessary for successful secondary-stage cooling on the intercombination transition. In turn, absorption saturation spectroscopy in the vapour cell provides the long-term frequency stability of the second-stage cooling laser at λ = 689 nm. (laser spectroscopy)

• OSTI ID: 22551311
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 2 Vol. 45; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
ATOMS
COOLING
ENERGY-LEVEL TRANSITIONS
LASER SPECTROSCOPY
MAGNETIC FIELDS
STABILITY
STRONTIUM
ZEEMAN EFFECT