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Search Publications by: Robert Schwall (Assoc)

Displaying 26 - 29 of 29

Low-frequency phase locking in high-inductance superconductng nanowires

November 8, 2005

Author(s)

Robert Hadfield, Aaron J. Miller, Sae Woo Nam, Richard L. Kautz, Robert E. Schwall

Niobium nitride nanowires show considerable promise as high-speed single-photon detectors. We report the observation of an anomalous low-frequency ($\sim10$MHz) response in long, superconducting NbN nanowires (100nm wide, 4nm thick, and $500\mu$m long)

Antenna coupled niobium bolometers for 10 (mu)m radiation detection

June 1, 2005

Author(s)

Robert Hadfield, Aaron J. Miller, Sae Woo Nam, Erich N. Grossman, Robert E. Schwall,

We report on the fabrication and testing of antenna-coupled niobium bolometers for 10-micron wavelength radiation detection. We use 20 nm thick Nb films on oxidized Si substrates. The bolometer design consists of a 1 micron x 1 micron Nb microbridge

Performance of photon-number resolving transition-edge sensors with an integrated 1550 nm resonant cavity

June 1, 2005

Author(s)

Danna Rosenberg, Adriana Lita, Aaron J. Miller, Sae Woo Nam, Robert E. Schwall

Many quantum-information applications require high-efficiency, low-noise, single-photon-sensitive detectors that operate at visible and near-infrared wavelengths. The tunable superconducting critical temperature and anomalously low electron-phonon coupling

Near Unity Absorption in Tungsten films

December 19, 2003

Author(s)

Danna Rosenberg, Sae Woo Nam, Aaron J. Miller, Arto Salminen, Erich N. Grossman, Robert E. Schwall, John M. Martinis

The number resolving ability and extremely low dark count rate of tungsten transition-edge sensors (TESs) make them excellent candidates to replace avalanche photo diodes (APDs) in quantum information experiments, including quantum key distribution and