2009 Oleksandr Savchyn
"Sensitizers of erbium in silicon-rich SiO2: nanocrystals or luminescence centers?": The implementation of silicon photonics requires the development of a compact silicon-compatible light source. One of the possible routes for its realization is to use the emission from optical centers incorporated into silicon-based matrices and sensitized with dopants. It has long been thought that silicon nanocrystals can be used as efficient and dominant sensitizers of erbium in silicon-doped SiO2. In the current presentation it will be shown that the indirect excitation of erbium in this material does not require the presence of silicon nanocrystals. This conclusion clarifies a number of previously unexplained results and opens new opportunities in the field of silicon photonics (see event announcement).

2008 Georgios A. Siviloglou
"Observation of Accelerating Airy Beams": We report the first observation of Airy optical beams. This intriguing class of wave packets, initially predicted by Berry and Balazs in 1979, has been realized in both one- and two-dimensional configurations. As demonstrated in our experiments, these Airy beams can remain diffraction-free over long distances while they tend to freely accelerate during propagation (see event announcement).

2007 Ying Zhou
"High performance cholesteric liquid crystal lasers": (see event announcement).

2006 Erwan Baleine
"Surface pinning effect of polymer-dispersed liquid crystal and its applications" (see event announcement).

2005 Jeremy D. Ellis

2004 Anne Janet Milliez

2003 Michael Mielke

2002 Gabriel Popescu & Sergey Polyakov

2001 Irina Puscasu

more awards & honors...