8 papers
Split-Post Re-entrant Microwave Displacement Transducer with Quadratic Readout
Sonali Parashar, Jeremy F. Bourhill, Maxim Goryachev +1
We investigate a microwave-cavity-based displacement readout employing a split-post geometry to measure the motion of a dielectric membrane. Due to symmetry, the cavity response to…
Dielectric Properties of Single Crystal Calcium Tungstate
Elrina Hartman, Michael E Tobar, Ben T McAllister +3
This investigation employed microwave whispering gallery mode (WGM) analysis to characterize the dielectric properties of a cylindrical, single-crystal sample of calcium tungstate…
Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
Nancy Aggarwal, Odylio D. Aguiar, Diego Blas +34
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges…
Experimental Limits on Planetary Mass Primordial Black Hole Mergers
William M. Campbell, Leonardo Mariani, Michael E. Tobar +1
The multi-mode acoustic gravitational wave experiment (MAGE) is a high-frequency gravitational wave detection experiment featuring cryogenic quartz bulk acoustic wave resonators op…
Follow-up Search for a Tentative Dark Photon Signal Near 19.5 eV using ORGAN-Q infrastructure
Aaron P. Quiskamp, Graeme R. Flower, Maxim Goryachev +2
A recent independent dark photon (DP) focused reanalysis of existing data from the TASEH axion haloscope experiment reported a tentative DP dark matter signal with local significan…
Cryogenic Microwave Whispering Gallery Mode Spectroscopy of Paramagnetic Impurities in High-Purity Crystalline LiF
Steven Samuels, William Campbell, Michael E. Tobar +1
A low-noise cryogenic microwave spectroscopy experiment was performed on a high-purity lithium fluoride (LiF) crystal. The spectroscopy data revealed avoided level crossing interac…