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Meadowlark Optics - Wave Plates 6/24 LB 2024

Monitoring — and Possibly Improving — Superconducting Films

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Hank Hogan

Researchers at Stanford University in California have devised a Fourier transform infrared (FTIR) reflectivity monitoring technique that determines simultaneously the temperature and optical properties of a superconducting film as it is being deposited. As a result, they found that the superconductor, yttrium barium copper oxide (YBCO), has a number of previously unknown phases and undergoes unexpected phase boundary crossings. Shown here are Fourier transform infrared reflectivity spectra (ranging from 0 to 100%) recorded during deposition (0 to 120 s) and postannealing (>120 s) of...Read full article

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    Published: September 2007
    (FTIR) monitoringFeaturesSensors & DetectorsStanford University in Californiasuperconducting film

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