Publications

We investigated temperature-dependent optical conductivity spectra of a Nd0.7Sr0.3MnO3 single crystal.

We describe techniques to obtain well aligned samples of the newly discovered A* phase sup 1, sup 2, which possesses a structure characteristic of both smectic and cholesteric liquid crystals.

We report pseudodielectric function, (epsilon), data for Al1As alloys of target compositions x=0.00 through 0.80 in steps of 0.10 grown by liquid phase epitaxy and measured by spectroellipsometry.

We have studied the reflectivity of twinned, c-axis oriented crystals in the a,b (CuO) plane as a function of T from room temperature to 4K and as a function of frequency from ~3meV to ~3eV.

Using linear response theory, we have derived the form of a spin fluctuation-induced e-h interaction in a semi-magnetic semiconductor, in terms of spin susceptibilities.

We have investigated the class of disubstituted polyacatylene (PDPA) such as pristine and doped with C-60, using both transient and steady state spectroscopies.

We investigated the luminescence properties of GaN nanowhiskers produced by photoelectrochemical (PEC) etching using a combination of photoluminescence (PL) and cathodoluminescence (CL) spectroscop

The optical properties of heat-treated polyparaphenylene (PPP) were investigated by means of Raman and photoluminescence (PL) spectroscopy.

We present far-induced reflectivity spectra of seven samples of ceramic superconductors in the Ba-Y-Cu-O system with transition temperatures near 93K.

The frequency-dependent conductivity of Cu-O based superconductors is found to vary from sample to sample even in single-phase, bulk (twinned) crystals.