48 citations · 158 across the 12 of their papers we have counts for
12 papers
Zeeman optical pumping of Rb atoms in a hollow core photonic crystal fibre
Tomasz Krehlik, Artur Stabrawa, Rafał Gartman +3
Preparation of an atomic ensemble in a particular Zeeman state is a critical step of many protocols for implementing quantum sensors and quantum memories. These devices can also be…
Identification of object composition with Magnetic Inductive Tomography
R. Gartman, W. Chalupczak
The inductive response of an object to an oscillating magnetic field reveals information about its electrical conductivity and magnetic permeability. Here we introduce a technique…
Spin noise spectroscopy of a noise-squeezed atomic state
V. Guarrera, R. Gartman, G. Bevilacqua +1
Spin noise spectroscopy is emerging as a powerful technique for studying the dynamics of various spin systems also beyond their thermal equilibrium and linear response. Here, we st…
Dual frequency caesium spin maser
Patrick Bevington, Rafal Gartman, Yevgeny V. Stadnik +1
Co-magnetometers have been validated as valuable components of the atomic physics toolbox in fundamental and applied physics. So far, the explorations have been focused on systems…
Generation of atomic spin orientation with a linearly polarised beam in room-temperature alkali-metal vapour
Patrick Bevington, Rafal Gartman, Witold Chalupczak
Traditionally, atomic spin orientation is achieved by the transfer of angular momentum from polarised light to an atomic system. We demonstrate the mechanism of orientation generat…
Linear and non-linear coherent coupling in a Bell-Bloom magnetometer
R. Gartman, V. Guarrera, G. Bevilacqua +1
Spin-exchange collisions in hot vapours are generally regarded as a decoherence mechanism. In contrast, we show that linear and non-linear spin-exchange coupling can lead to the ge…
Parametric amplification and noise-squeezing in room temperature atomic vapours
V. Guarrera, R. Gartman, G. Bevilacqua +2
We report on the use of parametric excitation to coherently manipulate the collective spin state of an atomic vapour at room temperature. Signatures of the parametric excitation ar…
Enhanced material defects imaging with a radio-frequency atomic magnetometer
P. Bevington, R. Gartman, W. Chalupczak
Imaging of structural defects in a material can be realized with a radio-frequency atomic magnetometer by monitoring the material's response to a radio-frequency excitation field.…
Imaging of material defects with a radio-frequency atomic magnetometer
P. Bevington, R. Gartman, W. Chalupczak
Non-destructive eddy current testing of defects in metal plates using the magnetic resonance signal of a radio-frequency atomic magnetometer is demonstrated. The shape and amplitud…
Absolute Frequency Measurement of Rubidium 5S-7S Two-Photon Transitions
Piotr Morzynski, Piotr Wcislo, Piotr Ablewski +9
We report the absolute frequency measurements of rubidium 5S-7S two-photon transitions with a cw laser digitally locked to an atomic transition and referenced to an optical frequen…
Matter-Wave Interference versus Spontaneous Pattern Formation in Spinor Bose-Einstein Condensate
Marcin Witkowski, Rafal Gartman, Bartlomiej Nagorny +7
We describe effects of matter-wave interference of spinor states in the Rb Bose-Einstein condensate. The components of the F=2 manifold are populated by forced Majorana tran…
Analysis and calibration of absorptive images of Bose-Einstein condensate at non-zero temperatures
J. Szczepkowski, R. Gartman, M. Witkowski +3
We describe the method allowing quantitative interpretation of absorptive images of mixtures of BEC and thermal atoms which reduces possible systematic errors associated with evalu…