MIT
Quantum Nanostructures and
Nanofabrication Group

Prof. Karl K. Berggren

Topic: Superconducting Devices

6.20.2016
New Paper: “nanoSQUID operation using kinetic rather than magnetic induction”
We report on a method of nanoSQUID modulation which uses kinetic inductance rather than magnetic inductance to manip-ulate the internal fluxoid state. We produced modulation using injected current rather than... Read more >>
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5.27.2016
Andrew Dane awarded MRS symposium student presentation prize at MRS Spring 2016
Congratulations to QNN member Andrew Dane for being awarded the MRS symposium student presentation prize for his talk "Bias Sputtered Few-Nanometer-Thick Niobium Nitride for Superconducting Devices" at the Spring 2016... Read more >>
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1.7.2015
24-picosecond single-photon timing jitter in saturated SNSPDs – New Paper in IEEE Quantum Electronics
In our new paper, to appear in the IEEE Jornal of Selected Topics in Quantum Electronics (JSTQE), we have demonstrated fully-saturated nanowire single-photon detectors with 24 ps jitter. Furthermore we... Read more >>
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12.17.2014
New paper: “Universal scaling of the critical temperature for thin films near the superconducting-to-insulating transition” accepted to Phys. Rev. B
[preprint] [supp. info.] We reported that the superconducting properties scale universally close to the superconducting-to-insulating transition in thin films. This universal behavior was found useful not only for the fundamental... Read more >>
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10.20.2014
New paper: “Eight-fold signal amplification of a superconducting nanowire single-photon detector using a multiple-avalanche architecture” accepted to Optics Express
[pdf] [abstract] Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal amplitude scales linearly with n. However, the SNAP architecture has not been viably demonstrated... Read more >>
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