John G. Hartnett

Complex permittivity of some ultralow loss dielectric crystals at cryogenic temperatures

Jerzy Krupka, Krzysztof Derzakowski, Michael E. Tobar et al. · Measurement Science and Technology · 1999 · 311 citations

Materials Science, Photonics, Optical Materials +13

Fundamental Physics at the Intensity Frontier

J.L. Hewett, H. Weerts, R. Brock et al. · arXiv (Cornell University) · 2012 · 147 citations · Full text

Experimental Nuclear Physics, Nuclear Physics, Physics +12

Invited Article: Design techniques and noise properties of ultrastable cryogenically cooled sapphire-dielectric resonator oscillators

Clayton R. Locke, E.N. Ivanov, John G. Hartnett et al. · Review of Scientific Instruments · 2008 · 114 citations · Full text

Interrogation Oscillator, Precision Measurement, Engineering +15

Direct terrestrial test of Lorentz symmetry in electrodynamics to 10−18

Moritz Nagel, S. R. Parker, Evgeny Kovalchuk et al. · Nature Communications · 2015 · 99 citations · Full text

Ultra-low-phase-noise cryocooled microwave dielectric-sapphire-resonator oscillators

John G. Hartnett, Nitin R. Nand, Chuan Lu · Applied Physics Letters · 2012 · 84 citations · Full text

Photonics, Microwave Dielectric-sapphire-resonator Oscillators, Single Oscillator +9