Research

My primary research interests are in the area of Microelectronic Materials and Devices. This work is carried out in collaboration with Dr Tatiana Perova’s group in the Department of Electronic and Electrical Engineering in Trinity College, Dublin. I also work with Professor Baranov's group at ITMO in St. Petersburg.

Silicon based Photonic Crystals

Photonic crystals, fabricated by chemical etching periodic arrays on silicon, show considerable promise for microphotonics applications. The optical properties of these structures, as a function of the crystal geometry, are studied using a variety of Infra Red spectroscopic techniques. We have also developed mathematical models of these structures, with good agreement observed between the experimental spectra and the theoretical predictions.

Quantum nanostructures

Decreasing the characteristic size of materials results in a drastic alteration in the optical properties of crystalline, as well as non-crystalline, media and enables the fabrication of materials with novel and unique properties. These changes in the optical properties of materials, as a result of reducing their characteristic size, are related to a quantum confinement effect as well as due to the effect of dielectric confinement. Experimental data from the infrared spectra of organic liquids under confinement, as well as from the infrared spectra of amorphous quartz spherical nanoparticles and rods, exhibit good agreement with the calculated spectra