Researcher Profile

Dr Stephen Parker

Stephen Parker
Stephen Parker
  1. 2017
  2. First search for axions of mass 110 μeV using milliKelvin cooled 26.6 GHz microwave resonator

    McAlister, B., Kruger, J., Flower, G., Bourhill, J., Goryachev, M., Parker, S., Ivanov, E. & Tobar, M. 27 Oct 2017 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings. IEEE, Institute of Electrical and Electronics Engineers, p. 179-180 2 p. 8088839

    Research output: Research - peer-reviewConference paper

  3. Higher order reentrant post modes in cylindrical cavities

    McAllister, B. T., Shen, Y., Flower, G., Parker, S. R. & Tobar, M. E. 14 Oct 2017 In : Journal of Applied Physics. 122, 14, 144501

    Research output: Research - peer-reviewArticle

  4. 2016
  5. 1

    3D lumped LC resonators as low mass axion haloscopes

    Mcallister, B., Parker, S. & Tobar, M. 11 Aug 2016 In : Physical Review D - Particles, Fields, Gravitation and Cosmology. 94, 4, p. 042001-1 - 042001-6

    Research output: Research - peer-reviewArticle

  6. 1

    Axion Dark Matter Coupling to Resonant Photons via Magnetic Field

    Mcallister, B., Parker, S. & Tobar, M. 21 Apr 2016 In : Physical Review Letters. 116, 16, p. 161804-1-161804-5 161804

    Research output: Research - peer-reviewArticle

  7. Technical noise in K-band low-noise cryogenic amplifier

    Parker, S. 1 Apr 2016 In : Electronics Letters. 52, 7, p. 539-541

    Research output: Research - peer-reviewArticle

  8. 2015
  9. 1

    Bounds on higher-order Lorentz-violating photon sector coefficients from an asymmetric optical ring resonator experiment

    Parker, S., Mewes, M., Baynes, F. & Tobar, M. 30 Oct 2015 In : Physics Letters A. 379, 42, p. 2681-2684 4 p.

    Research output: Research - peer-reviewArticle

  10. Direct terrestrial test of Lorentz symmetry in electrodynamics to 10-18

    Nagel, M., Parker, S., Kovalchuk, E. V., Stanwix, P., Hartnett, J., Ivanov, E., Peters, A. & Tobar, M. 1 Sep 2015 In : NATURE COMMUNICATIONS. 6, p. 1-6

    Research output: Research - peer-reviewArticle

  11. 2014
  12. Radio frequency signals synthesised from independent cryogenic sapphire oscillators

    Hartnett, J. G., Parker, S., Ivanov, E., Povey, T., Nand, N. R. & Le Floch, J-M. 28 Feb 2014 In : Electronics Letters. 50, 4, p. 294-295 2 p.

    Research output: Research - peer-reviewArticle

  13. 1
  14. Bulk acoustic wave resonator thermal noise measurements

    Goryachev, M., Ivanov, E., Parker, S., Winterflood, J., Tobar, M. & Galliou, S. 2014 2014 IEEE International Frequency Control Symposium Proceedings. Piscataway, NJ, USA: IEEE, Institute of Electrical and Electronics Engineers, Vol. 1, p. 50-52

    Research output: Research - peer-reviewConference paper

  15. Current limitations of cryogenic microwave oscillator frequency stability

    Parker, S., Ivanov, E., Tobar, M. & Hartnett, J. G. 2014 IFCS 2014 - 2014 IEEE International Frequency Control Symposium, Proceedings.

    Research output: ResearchConference paper

  16. Testing Lorentz invariance using rotating cryogenic sapphire oscillators

    Parker, S. R., Nagel, M., Kovalchuk, E., Stanwix, P. L., Ivanov, E. N., Hartnett, J. G., Peters, A. & Tobar, M. E. 2014

    Research output: Research - peer-reviewAbstract

  17. Testing speed of light isotropy using rotating cryogenic sapphire microwave oscillators

    Parker, S., Nagel, M., Kovalchuk, E. V., Stanwix, P., Ivanov, E., Hartnett, J. G., Peters, A. & Tobar, M. 2014 IFCS 2014 - 2014 IEEE International Frequency Control Symposium, Proceedings.

    Research output: ResearchConference paper

  18. 2013
  19. Frequency transposing measurement technique for oscillator comparisons

    Hartnett, J. G., Parker, S. & Ivanov, E. 2013 In : Electronics Letters. 49, 15, p. 953-955

    Research output: Research - peer-reviewArticle

  20. Hidden sector photon coupling of resonant cavities

    Parker, S., Rybka, G. & Tobar, M. 2013 In : Physical Review D. 87, 11, p. 6pp

    Research output: Research - peer-reviewArticle

  21. Resonator power to frequency conversion in a cryogenic sapphire oscillator

    Nand, N. R., Parker, S., Ivanov, E., Le Floch, J-M., Hartnett, J. G. & Tobar, M. 2013 In : Applied Physics Letters. 103, 4, p. 043502-1 - 043502-4

    Research output: Research - peer-reviewArticle

  22. Using Microwave Cavities to Test Lorentz Invariance

    Parker, S. R., Stanwix, P. L., Ivanov, E. N., Tobar, M. E., Nagel, M., Kovalchuk, E. V. & Peters, A. 2013 Proceedings of the 6th Meeting on CPT and Lorentz Symmetry. Kostelecký, V. A. (ed.). World Scientific Publishing, p. 131-134 4 p.

    Research output: Research - peer-reviewConference paper

  23. 2012
  24. 2011
  25. 1

    A Michelson-Morley resonant cavity test of Lorentz invariance

    Parker, S. 2011

    Research output: ResearchDoctoral Thesis

  26. Cavity bounds on higher-order lorentz-violating coefficients

    Parker, S., Mewes, M., Stanwix, P. & Tobar, M. 2011 In : Physical Review Letters. 106, 18, p. 3pp

    Research output: Research - peer-reviewArticle

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