23 citations · 93 across the 7 of their papers we have counts for
7 papers
Multi-mode technique for the determination of the biaxial Y2SiO5 permittivity tensor from 300 to 6 Kelvin
N. C. Carvalho, J-M. Le Floch, J. Krupka +1
The Y2SiO5 (YSO) crystal is a dielectric material with biaxial anisotropy with known values of refractive index at optical frequencies. It is a well-known rare-earth (RE) host mate…
Hybrid Electron Spin Resonance and Whispering Gallery Mode Resonance Spectroscopy of Fe3+ in Sapphire
Karim Benmessai, Warrick G. Farr, Daniel L. Creedon +4
The development of a new era of quantum devices requires an understanding of how paramagnetic dopants or impurity spins behave in crystal hosts. Here, we describe a new spectroscop…
Electromagnetic properties of polycrystalline diamond from 35K to room temperature and microwave to terahertz frequencies
Jean-Michel Le Floch, Romain Bara, John G. Hartnett +7
Dielectric resonators are key components for many microwave and millimetre wave applications, including high-Q filters and frequency-determining elements for precision frequency sy…
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…
Observation of persistent photoconductivity in bulk Gallium Arsenide and Gallium Phosphide samples at cryogenic temperatures using the Whispering Gallery mode method
J. G. Hartnett, D. Mouneyrac, J. -M. Le Floch +3
Whispering Gallery modes in bulk cylindrical Gallium Arsenide and Gallium Phosphide samples have been examined both in darkness and under white light at cryogenics temperatures < 5…
Low-loss Materials for high Q-factor Bragg Reflector Resonators
Jean-Michel le Floch, Michael E. Tobar, Dominique Cros +1
A Bragg resonator uses dielectric plates within a metallic cavity to confine the energy within a central free space region. The importance of the permittivity is shown with a bette…