학술논문
Absolute frequency measurement of the 7s² ¹S0 -7s7p ¹P1 transition in 225 Ra.
Document Type
Article
Author
Source
Subject
*RADIUM isotopes
*PHASE transitions
*LASER cooling
*ELECTRIC dipole moments
*FREQUENCY spectra
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Language
ISSN
1050-2947
Abstract
Transition frequencies were determined for transitions in Ra in an atomic beam and for reference lines in Te2 molecules in a vapor cell. The absolute frequencies were calibrated against a GPS stabilized Rb clock by means of an optical frequency comb. The 7s² ¹S0(F = 1/2)-7s7p ¹P1(F = 3/2) transition in 225Ra was determined to be 621042124(2)MHz. The measurements provide input for designing efficient and robust laser cooling of Ra atoms in preparation of a search for a permanent electric dipole moment in Ra isotopes. [ABSTRACT FROM AUTHOR]