25 August 2009 Background gas induced collision shift for a Sr spin-forbidden transition
Author Affiliations +
Abstract
Buffer gas induced collision shift for the 88Sr 1S0-3P1 transition is investigated by precision saturation spectroscopy of thermal gas in a heat cell. The cell was filled with rare gases of helium, neon, argon, and xenon as buffer gases. Helium showed the largest fractional shift coefficient of 1.6x10-9 Torr-1. The disagreement between our experiments and simple impact calculations indicates effective atom losses from zero-velocity class which contributes to saturated absorption spectroscopy. The result could be useful to evaluate the background gas collision shift of Sr lattice clocks. Keywords: collision, saturated absorption spectroscopy, lattice clock, optical clock, density shift
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tetsuya Ido, Nobuyasu Shiga, Ying Li, Hiroyuki Ito, Shigeo Nagano, Atsushi Yamaguchi, Michi Koide, Hiroshi Ishijima, Mizuhiko Hosokawa, Katarzyna Bielska, Roman Ciurylo, "Background gas induced collision shift for a Sr spin-forbidden transition", Proc. SPIE 7431, Time and Frequency Metrology II, 74310F (25 August 2009); doi: 10.1117/12.825471; https://doi.org/10.1117/12.825471
PROCEEDINGS
8 PAGES


SHARE
Back to Top