106 citations · 346 across the 16 of their papers we have counts for
7 papers · 1 filter
Higher Order Reentrant Post Modes in Cylindrical Cavities
Ben T. McAllister, Yifan Shen, Graeme R. Flower +2
Reentrant cavities are microwave resonant devices employed in a number of different areas of physics. They are appealing due to their simple frequency tuning mechanism, which offer…
3D Lumped LC Resonators as Low Mass Axion Haloscopes
Ben T. McAllister, Stephen R. Parker, Michael E. Tobar
The axion is a hypothetical particle considered to be the most economical solution to the strong CP problem. It can also be formulated as a compelling component of dark matter. The…
Cross-correlation measurement techniques for cavity-based axion and weakly interacting slim particle searches
Ben T. McAllister, Stephen R. Parker, Eugene N. Ivanov +1
The search for dark matter is of fundamental importance to our understanding of the universe. Weakly-Interacting Slim Particles (WISPs) such as axions and hidden sector photons (HS…
Extending the frequency range of digital noise measurements to the microwave domain
Stephen R. Parker, Eugene N. Ivanov, John G. Hartnett
We describe the use of digital phase noise test sets at frequencies well beyond the sampling rate of their analog-to-digital converters. The technique proposed involves the transfe…
Resonator Power to Frequency Conversion in a Cryogenic Sapphire Oscillator
Nitin R. Nand, Stephen R. Parker, Eugene N. Ivanov +3
We report on the measurement and characterization of power to frequency conversion in the resonant mode of a cryogenic sapphire loaded cavity resonator, which is used as the freque…
Comparison of ultra-stable radio frequency signals synthesized from independent secondary microwave frequency standards
John G. Hartnett, Stephen R. Parker, Eugene N. Ivanov +3
The phase noise and frequency stability measurements of 1 GHz, 100 MHz, and 10 MHz signals are presented which have been synthesized from microwave cryogenic sapphire oscillators u…