The Ubiquitous SQUID: History and Applications: John Clarke

John Clarke (University of California, Berkeley) speaks at Industry Day at the APS March Meeting 2018 in Los Angeles, CA. See abstract below.

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John Clarke (University of California, Berkeley) speaks at Industry Day at the APS March Meeting 2018 in Los Angeles, CA. See abstract below.

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The Ubiquitous SQUID: History and Applications

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One-half century after the discovery of superconductivity, superconducting electronics was born in a remarkably short time: 1961 -- 1964. The essential steps were the observation of the quantization of magnetic flux in a superconducting loop in units of the flux quantum, the prediction and subsequent observation of Josephson tunneling, and the invention of the SQUID---Superconducting QUantum Interference Device. The SQUID is an ultrasensitive detector of changes in magnetic flux that one can configure to measure many other physical properties, for example: current, voltage, magnetic field gradient and high-frequency electromagnetic fields. SQUIDs have a wide range of applications. A widely used comme...