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Ultra-High Cooperativity Interactions between Magnons and Resonant Photons in a YIG sphere
Jeremy Bourhill, Nikita Kostylev, Maxim Goryachev +2
Resonant photon modes of a 5mm diameter YIG sphere loaded in a cylindrical cavity in the 10-30GHz frequency range are characterised as a function of applied DC magnetic field at mi…
Collective Behaviour of Cr ions in Ruby Revealed by Whispering Gallery Modes
Jeremy Bourhill, Maxim Goryachev, Warrick G. Farr +1
We present evidence for collective action of Cr ion impurities in a highly doped ruby crystal at microwave frequencies. The cylindrical geometry of the crystal allows for th…
Precision Measurement of a low-loss Cylindrical Dumbbell-Shaped Sapphire Mechanical Oscillator using Radiation Pressure
Jeremy Bourhill, Eugene Ivanov, Michael Tobar
We present first results from a number of experiments conducted on a 0.53 kg cylindrical dumbbell-shaped sapphire crystal. This is the first reported optomechanical experiment of t…