Professor Christopher Foot: Publications

Laser spectroscopy of the 1S-2S transition in hydrogen and deuterium: Determination of the 1S Lamb shift and the Rydberg constant.

Phys Rev A Gen Phys 40:11 (1989) 6169-6184

Authors:

MG Boshier, PE Baird, CJ Foot, EA Hinds, MD Plimmer, DN Stacey, JB Swan, DA Tate, DM Warrington, GK Woodgate

Isotope shift in xenon by Doppler-free two-photon laser spectroscopy

Journal of Physics B Atomic Molecular and Optical Physics 22:10 (1989) L241-L244

Authors:

MD Plimmer, PEG Baird, CG Foot, DN Stacey, JB Swan, GK Woodgate

Abstract:

Isotope shifts and pressure broadening have been measured in the two-photon transition at 249 nm from the 5p⁶¹S0 ground level of neutral xenon to a J=0 level of the 5p⁵6p configuration (the 2p5 level in Paschen notation). A continuous-wave tunable dye laser operating at 498 nm with intracavity frequency doubling excited the transition. The work is the first application of Doppler-free laser spectroscopy to a transition involving the ground level of a rare gas. The results show that although no s electron is directly involved in the transition, the field isotope shifts are comparable with those observed in transitions of the type 6s-np. © 1989 IOP Publishing Ltd.

Continuous-wave measurement of the hydrogen 1S-2S transition frequency.

Phys Rev A Gen Phys 39:9 (1989) 4591-4598

Authors:

DH McIntyre, RG Beausoleil, CJ Foot, EA Hildum, B Couillaud, TW Hänsch

High precision CW laser measurement of the 1S−2S interval in atomic hydrogen and deuterium

AIP Conference Proceedings AIP Publishing 172 (1988) 319-322

Authors:

EA Hinds, MG Boshier, PEG Baird, CJ Foot, MD Plimmer, DN Stacey, DA Tate, GK Woodgate, JB Swan, DM Warrington

Continuous-wave measurement of the 1S Lamb shift in atomic hydrogen.

Phys Rev A Gen Phys 35:11 (1987) 4878-4881

Authors:

RG Beausoleil, DH McIntyre, CJ Foot, EA Hildum, B Couillaud, TW Hänsch

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