Arrays of membrane isolated yttrium-barium-copper-oxide kinetic inductance bolometers

Arrays of membrane isolated yttrium-barium-copper-oxide kinetic inductance bolometers

Verification of d-wave pairing symmetry by microwave intermodulation distortion measurements in yttrium barium copper oxide

We report measurements of the temperature and power dependence of the microwave frequency intermodulation distortion (IMD) in high quality pulsed laser deposition (PLD) Yttrium Barium Copper Oxide (YBCO) on LaAlO 3 substrate. A low-temperature (T < 30 K) increase in IMD is the observation of an upturn of the nonlinear coefficient of the quadratic field dependence of the penetration depth. This ...

Kinetic inductance of Josephson-junction arrays: Dynamic and equilibrium calculations.

We show analytically that the inverse kinetic inductance L of an overdamped junction array at low frequencies is proportional to the admittance of an inhomogeneous equivalent impedance network. The ij bond in this equivalent network has an inverse inductance Jij cos(θ 0 i − θ 0 j − Aij), where Jij is the Josephson coupling energy of the ij th bond, θ i is the ground-state phase of the grain i, ...

A readout for large arrays of microwave kinetic inductance detectors.

Microwave kinetic inductance detectors (MKIDs) are superconducting detectors capable of counting single photons and measuring their energy in the UV, optical, and near-IR. MKIDs feature intrinsic frequency domain multiplexing (FDM) at microwave frequencies, allowing the construction and readout of large arrays. Due to the microwave FDM, MKIDs do not require the complex cryogenic multiplexing el...

PUBLICATION III Submillimeter-wave kinetic inductance bolometers on free-standing nanomembranes

We introduce a microwave submillimeter-wave detector based on an integrated micromesh absorber and superconducting kinetic inductance thermometer on a through-wafer released sub-micron thick membrane. Equilibrium operation achieved by thermal isolation through the membrane geometry enables operation at elevated thermal bath temperatures of 5–10 K. The bolometer operates in a phonon-noise limite...