Publications

We have extended our studies of the nature of superconductivity in ultra thin films down to temperatures as low as 50mK.

Here we report the results of experiments leading us to the single phase perovskite Ba sub (.6) K sub (.4) BiO (3-delta) which has magnetically determined onset temperature of 29.8K; a T sub c cons

We have discovered a new family of layered copper oxide superconductors, with superconducting transitions near 70K.

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As is well-known, field-effect transistor (FET) is the work-horse of today's semiconductor electronics.

We present information on the temperature-dependent changes of the complex pseudodielectric function in the high-T-c superconductor Bi2Sr2CaCu2O8-delta by means of spectroscopic ellipsometry.

The potential impact to technology of superconductivity above the temperature of liquid nitrogen is discussed.

Investigations of epitaxial growth in the rubidium barium bismuth oxide material system have shown it to be an powerful synthetic technique.

We study the generation of supercontinua in air-silica microstructured fibers by both nanosecond and femto-second pulse excitation.

A supercontinuum quantum cascade (QC) laser with flat optical gain from 6.7 to 7.4mum wavelength was designed and fabricated to provide a wavelength independent threshold current.