11 citations · 47 across the 5 of their papers we have counts for
5 papers
Transient dynamics of a superconducting nonlinear oscillator
P. Bhupathi, Peter Groszkowski, M. P. DeFeo +3
We investigate the transient dynamics of a lumped-element oscillator based on a dc superconducting quantum interference device (SQUID). The SQUID is shunted with a capacitor formin…
Microstrip superconducting quantum interference device amplifiers with submicron Josephson junctions: enhanced gain at gigahertz frequencies
M. P. DeFeo, P. Bhupathi, K. Yu +4
We present measurements of an amplifier based on a dc superconducting quantum interference device (SQUID) with submicron Al-AlOx-Al Josephson junctions. The small junction size red…
Ultrasound attenuation and a P-B-T phase diagram of superfluid 3He in 98% aerogel
B. H. Moon, N. Masuhara, P. Bhupathi +4
Longitudinal sound attenuation measurements in superfluid 3He in 98% aerogel were conducted at pressures between 14 and 33 bar and in magnetic fields up to 4.44 kG. The temperature…
Aerogel Waveplates
P. Bhupathi, J. Hwang, R. M. Martin +5
Optical transmission measurements were made on 98% porosity silica aerogel samples under various degrees of uniaxial strain. Uniaxially compressed aerogels exhibit large birefringe…
Ultrasound attenuation of superfluid He in aerogel
H. C. Choi, N. Masuhara, B. H. Moon +7
We have performed longitudinal ultrasound (9.5 MHz) attenuation measurements in the B-phase of superfluid He in 98% porosity aerogel down to the zero temperature limit for a wi…