Physics – Atomic Physics
Scientific paper
2007-10-19
Physics
Atomic Physics
soumis \`a Appl Phys B MS 4734 B
Scientific paper
10.1007/s00340-007-2927-9
A special vapour cell has been built, that allows the measurement of the atom-surface van der Waals interaction exerted by a CaF2 window at the interface with Cs vapour. Mechanical and thermal fragility of fluoride windows make common designs of vapour cells unpractical, so that we have developed an all-sapphire sealed cell with an internal CaF2 window. Although impurities were accidentally introduced when filling-up the prototype cell, leading to a line-broadening and shift, the selective reflection spectrum on the Cs D1 line (894 nm) makes apparent the weak van der Waals surface interaction. The uncertainties introduced by the effects of these impurities in the van der Waals measurement are nearly eliminated when comparing the selective reflection signal at the CaF2 interface of interest, and at a sapphire window of the same cell. The ratio of the interaction respectively exerted by a sapphire interface and a CaF2 interface is found to be 0.55 $\pm$ 0.25, in good agreement with the theoretical evaluation of ~0.67.
Balasanyan Nikolay
Bloch Daniel
Ducloy Martial
Fichet Michèle
Laliotis Athanasios
No associations
LandOfFree
Selective Reflection Spectroscopy at the Interface between a Calcium Fluoride Window and Cs Vapour does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Selective Reflection Spectroscopy at the Interface between a Calcium Fluoride Window and Cs Vapour, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective Reflection Spectroscopy at the Interface between a Calcium Fluoride Window and Cs Vapour will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-708825