In 2016 he was a foundering Director of Cryoclock Pty Ltd, a small Australian startup commercialising his research. See cryoclock.com now called Quantxlabs. See ‘sapphire’ clock. These clocks have formed part of Australia’s over-the-horizon-radar defence system known as Jindalee Operational Radar Network (JORN).
In 2013 Prof. Hartnett was a recipient of an ARC Discovery Outstanding Researcher Award (DORA) fellowship at the University of Adelaide. Only 2 such awards were given in physics in Australia that year.
In 2010 he was awarded the W.G. Cady award by IEEE Ultrasonics, Ferroelectrics and Frequency Control Society. The W.G. Cady Award recognizes outstanding contributions in the fields of piezoelectric or other classical frequency control, selection and measurement and resonant sensor devices.
The citation reads: “for the construction of ultra-stable cryogenic sapphire dielectric resonator oscillators and promotion of their applications in the fields of frequency metrology and radio-astronomy.”
The award was presented during the 2010 IEEE International Frequency Control Symposium at Newport Beach, California in June 2010.

