Rushton, L M; Ellis, L M; Zipfel, J D; Bevington, P; Chalupczak, W (2024) Performance of a radio-frequency two-photon atomic magnetometer in different magnetic induction measurement geometries. Sensors, 24 (20). 6657

Zipfel, J D; Bevington, P; Wright, L; Chalupczak, W; Quick, G; Steele, B; Nicholson, J; Guarrera, V (2024) Indirect pumping of alkali-metal gases in a miniature silicon-wafer cell. Physical Review Applied, 22. 014056

Rushton, L M; Ellis, L M; Zipfel, J D; Bevington, P; Chalupczak, W (2024) Polarisation of radio-frequency magnetic fields in magnetic induction measurements with an atomic magnetometer. Physical Review Applied, 22. 014002

Bevington, P; Wright, L; Gartman, R; Chalupczak, W (2022) Role of the primary radio-frequency magnetic field distribution in atomic magnetometer based inductive measurements. Journal of Applied Physics, 131 (16). 164502

Gartman, R; Chalupczak, W (2021) Identification of the object composition with Magnetic Inductive Tomography. Review of Scientific Instruments, 92 (11). 115001

Guarrera, V; Gartman, R; Bevilacqua, G; Chalupczak, W (2021) Spin-noise spectroscopy of a noise-squeezed atomic state. Physical Review Research, 3 (3). L032015

Bevington, P; Rajroop, J; Gartman, R; Chalupczak, W (2020) Role of the probe beam in a radio-frequency atomic magnetometer. Applied Optics, 59 (20). 6054 ISSN 1559-128X

Bevington, P; Gartman, R; Chalupczak, W (2020) Magnetic induction tomography of structural defects with alkali–metal spin maser. Applied Optics, 59 (8). pp. 2276-2282. ISSN 1559-128X

Chalupczak, W; Josephs-Franks, P W (2015) Alkali-metal spin maser. Phys. Rev. Lett., 115 (3). 033004

Gartman, R*; Chalupczak, W (2015) Amplitude-modulate indirect pumping of spin orientation in low-density cesium vapor. Phys. Rev. A, 91 (5). 053419

Chalupczak, W; Josephs-Franks, P W; Patton, B*; Pustelny, S* (2014) Spin-exchange narrowing of the atomic ground-state resonances. Phys. Rev. A, 90 (4). 042509

Chalupczak, W; Josephs-Franks, P W; Godun, R M; Pustelny, S* (2013) Radio-frequency spectroscopy in the dark. Phys. Rev. A, 88 (5). 052508

Chalupczak, W; Godun, R M; Anielski, P*; Wojciechowski, A*; Pustelny, S* (2012) Enhancement of optically pumped spin orientation via spin exchange collisions at low vapour density. Phys. Rev. A, 85 (4). 043402

Chalupczak, W; Godun, R M*; Pusteiny, S*; Gawlik, W* (2012) Room temperature femtotesla radio-frequency atomic magnetometer. Appl. Phys. Lett., 100 (24). 242401

Chalupczak, W; Godun, R M (2011) Near-resonance spin noise spectroscopy. Phys. Rev. A, 83 (3). 032512

Chalupczak, W; Wojciechowski, A*; Pustelny, S*; Gawlik, W* (2010) Competition between the tensor light shift and nonlinear Zeeman effect. Phys. Rev. A, 82 (2). 023417

Szymaniec, K; Park, S E*; Marra, G; Chalupczak, W (2010) First accuracy evaluation of the NPL-CsF2 primary frequency standard. Metrologia, 47 (4). pp. 363-376.

Chalupczak, W; Josephs-Franks, P W; Pustelny, S*; Gawlik, W* (2010) Optical-radio frequency resonances free from power-broadening. Phys. Rev. A, 81 (1). 013422

Szymaniec, K; Chalupczak, W; Whibberley, P B; Lea, S N; Henderson, D (2006) Reply to the comment on 'Evaluation of the primary frequency standard NPL-CsF1'. Metrologia, 43 (3). L18-19

Barwood, G P; Huang, G; Klein, H A; Margolis, H S; Lea, S N; Szymaniec, K; Chalupczak, W; Gill, P (2006) An optical frequency standard based on a transition in a single trapped strontium ion. In: Optical Frequency Combs for Space International Workshop, 2-3 October 2006, NPL, UK.

Szymaniec, K; Chalupczak, W; Whibberley, P B; Lea, S N; Henderson, D (2005) Evaluation of the primary frequency standard NPL-CsF1. Metrologia, 42 (1). pp. 49-57.

Szymaniec, K; Chalupczak, W; Whibberley, P B; Lea, S N; Henderson, D (2004) Evaluation of NPL-CSF1 primary frequency standard. In: Conference on Precision Electromagnetic Measurement (CPEM) 2004, 27 June - 2 July 2004, London, UK.

Szymaniec, K; Chalupczak, W; Henderson, D (2003) Initial evaluation of the NPL caesium fountain frequency standard. In: Proceedings of the 2003 IEEE International Frequency Control Symposium and PDS Exhibition (jointly with the 17th European Frequency and Time Forum), 3-9 May 2003, Tempa, Florida, USA.