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Off-resonance absorption and dispersion in vapours of hot alkali-metal atoms (2009)
Journal Article
Siddons, P., Adams, C., & Hughes, I. (2009). Off-resonance absorption and dispersion in vapours of hot alkali-metal atoms. Journal of Physics B: Atomic, Molecular and Optical Physics, 42(17), Article 175004. https://doi.org/10.1088/0953-4075/42/17/175004

We study the absorptive and dispersive properties of Doppler-broadened atomic media as a function of detuning. Beginning from the exact lineshape calculated for a two-level atom, a series of approximations to the electric susceptibility are made. The... Read More about Off-resonance absorption and dispersion in vapours of hot alkali-metal atoms.

Bright solitary waves of trapped atomic Bose-Einstein condensates (2009)
Journal Article
Parker, N., Martin, A., Adams, C., & Cornish, S. (2009). Bright solitary waves of trapped atomic Bose-Einstein condensates. Physica D: Nonlinear Phenomena, 238(15), 1456-1461. https://doi.org/10.1016/j.physd.2008.07.001

Motivated by recent experimental observations, we study theoretically multiple bright solitary waves of trapped Bose–Einstein condensates. Through variational and numerical analyses, we determine the threshold for collapse of these states. Under π-ph... Read More about Bright solitary waves of trapped atomic Bose-Einstein condensates.

A gigahertz-bandwidth atomic probe based on the slow-light Faraday effect (2009)
Journal Article
Siddons, P., Bell, N., Cai, Y., Adams, C., & Hughes, I. (2009). A gigahertz-bandwidth atomic probe based on the slow-light Faraday effect. Nature Photonics, 3(4), 225-229. https://doi.org/10.1038/nphoton.2009.27

The ability to probe quantum systems on short timescales is central to the advancement of quantum technology. Here we show that this is possible using an off-resonant dispersive probe. By applying a magnetic field to an atomic vapour the spectra of t... Read More about A gigahertz-bandwidth atomic probe based on the slow-light Faraday effect.

Laser frequency stabilization to excited state transitions using electromagnetically induced transparency in a cascade system (2009)
Journal Article
Abel, R., Mohapatra, A., Bason, M., Pritchard, J., Weatherill, K., Raitzsch, U., & Adams, C. (2009). Laser frequency stabilization to excited state transitions using electromagnetically induced transparency in a cascade system. Applied Physics Letters, 94(7), Article 071107. https://doi.org/10.1063/1.3086305

We demonstrate laser frequency stabilization to excited state transitions using cascade electromagnetically induced transparency. Using a room temperature Rb vapor cell as a reference, we stabilize a first diode laser to the D2 transition and a secon... Read More about Laser frequency stabilization to excited state transitions using electromagnetically induced transparency in a cascade system.

A versatile and reliably re-usable ultra-high vacuum viewport (2009)
Journal Article
Weatherill, K., Pritchard, J., Griffin, P., Dammalapati, U., Adams, C., & Riis, E. (2009). A versatile and reliably re-usable ultra-high vacuum viewport. Review of Scientific Instruments, 80(2), https://doi.org/10.1063/1.3075547

We present a viewport for use in ultrahigh vacuum (UHV) based upon the preflattened solder seal design presented in earlier work [ Cox et al., Rev. Sci. Instrum. 74, 3185 (2003) ]. The design features significant modifications to improve long term pe... Read More about A versatile and reliably re-usable ultra-high vacuum viewport.

Quantum reflection of bright matter-wave solitons (2009)
Journal Article
Cornish, S., Parker, N., Martin, A., Judd, T., Scott, R., Fromhold, T., & Adams, C. (2009). Quantum reflection of bright matter-wave solitons. Physica D: Nonlinear Phenomena, 238(15), 1299-1305. https://doi.org/10.1016/j.physd.2008.07.011

We propose the use of bright matter-wave solitons formed from Bose–Einstein condensates with attractive interactions to probe and study quantum reflection from a solid surface at normal incidence. We demonstrate that the presence of attractive intera... Read More about Quantum reflection of bright matter-wave solitons.

A vapor cell based on dispensers for laser spectroscopy (2009)
Journal Article
Bridge, E., Millen, J., Adams, C., & Jones, M. (2009). A vapor cell based on dispensers for laser spectroscopy. Review of Scientific Instruments, 80(1), Article 013101. https://doi.org/10.1063/1.3036980

We describe a simple strontium vapor cell for laser spectroscopy experiments. Strontium vapor is produced using an electrically heated commercial dispenser source. The sealed cell operates at room temperature, and without a buffer gas or vacuum pump.... Read More about A vapor cell based on dispensers for laser spectroscopy.

Narrow absorptive resonances in a four-level atomic system (2009)
Journal Article
Bason, M., Mohapatra, A., Weatherill, K., & Adams, C. (2009). Narrow absorptive resonances in a four-level atomic system. Journal of Physics B: Atomic, Molecular and Optical Physics, 42(7), https://doi.org/10.1088/0953-4075/42/7/075503

We study the effect of a control beam on a Λ electromagnetically induced transparency (EIT) system in 87Rb. The control beam couples one ground state to another excited state forming a four-level -system. Phase coherent laser beams to drive the -syst... Read More about Narrow absorptive resonances in a four-level atomic system.