Nanophotonics:

• Active optical metamaterials

• Broad-band, thin film plasmonic absorbers

• Vanadium-oxide based active devices

• Plasmonic nanostructures and metamaterials for photovoltaic applications

Photovoltaics:

• High efficiency III-V thin film, multi-junction solar cells

• InP wafer bonding and layer transfer to silicon substrates

• Device physics and modeling of heterojunction solar cells