Zobrazeno 1 - 10
of 2 247
pro vyhledávání: '"Keaveney , James"'
Autor:
Keaveney, James
Publikováno v:
Phys. Rev. D 107, 036021 (2023)
A prospective measurement of the differential cross section of \tWZ production with respect to the transverse momentum of the \PZ boson using a general-purpose detector at the High-Luminosity Large Hadron Collider (HL-LHC) is described. The response
Externí odkaz:
http://arxiv.org/abs/2107.01053
We present an investigation of magneto-optic rotation in both the Faraday and Voigt geometries. We show that more physical insight can be gained in a comparison of the Faraday and Voigt effects by visualising optical rotation trajectories on the Poin
Externí odkaz:
http://arxiv.org/abs/1807.04652
Autor:
Mathew, Renju S., Ponciano-Ojeda, Francisco, Keaveney, James, Whiting, Daniel J., Hughes, Ifan G.
Publikováno v:
Optics Letters Vol. 43, Issue 17, pp. 4204-4207 (2018)
We demonstrate a technique to lock simultaneously two laser frequencies to each step of a two-photon transition in the presence of a magnetic field sufficiently large to gain access to the hyperfine Paschen-Back regime. A ladder configuration with th
Externí odkaz:
http://arxiv.org/abs/1807.00853
Atomic bandpass filters are widely used in a variety of applications, owing to their high peak transmission and narrow bandwidth. Much of the previous literature has used the Faraday effect to realize such filters, where an axial magnetic field is ap
Externí odkaz:
http://arxiv.org/abs/1806.08705
Automated translating beam profiler for in-situ laser beam spot-size and focal position measurements
Autor:
Keaveney, James
Publikováno v:
Review of Scientific Instruments 89, 035114 (2018)
We present a low-cost, high-resolution solution for automated laser-beam profiling with axial translation. The device is based on a Raspberry Pi, Pi Noir CMOS camera, stepper motor and commercial translation stage. We also provide software to run the
Externí odkaz:
http://arxiv.org/abs/1801.06508
We present a major update to ElecSus, a computer program and underlying model to calculate the electric susceptibility of an alkali-metal atomic vapour. Knowledge of the electric susceptibility of a medium is essential to predict its absorptive and d
Externí odkaz:
http://arxiv.org/abs/1708.05305
Publikováno v:
Journal of Modern Optics, Volume 65, 2018 - Issue 2, Pages 119-128
We present an experimental study of seeded four-wave mixing (4WM) using a diamond excitation scheme (with states from the 5S$_{1/2}$, 5P$_{1/2}$, 5P$_{3/2}$ and 5D$_{3/2}$ terms) in a thermal vapour of $^{87}$Rb atoms. We investigate the 4WM spectra
Externí odkaz:
http://arxiv.org/abs/1705.01855
Publikováno v:
Phys. Rev. Lett. 118, 253601 (2017)
We experimentally demonstrate the generation of heralded bi-chromatic single photons from an atomic collective spin excitation (CSE). The photon arrival times display collective quantum beats, a novel interference effect resulting from the relative m
Externí odkaz:
http://arxiv.org/abs/1612.05467
We report on the development of a diode laser system - the `Faraday laser' - using an atomic Faraday filter as the frequency-selective element. In contrast to typical external-cavity diode laser systems which offer tunable output frequency but requir
Externí odkaz:
http://arxiv.org/abs/1607.01969