Nanoantennas: Coupling Light to Nanoscale

Contacts:

Alexandra Boltasseva, DTU Fotonik, 4525-6368 (albo@fotonik.dtu.dk)

Left: Schematics of a nanoantenna. Right: Calculated field enhancement

Optical nanoantennae are metal nanostructures that can act as transducers for receiving or transmitting electromagnetic energy at subwavelength, nanoscale dimensions. In many senses, they are analogous to antennae built for other wavelength scales for example at radio frequencies. When properly engineered, these nanostructures can provide increased light extraction (or collection) from emitters (or detectors) such as molecules, quantum dots and wells or any photoactive material. These properties are desirable for applications in biological and chemical sensing and imaging, chip-level integration of optoelectronic devices, photovoltaic and ambient lighting devices.

In this project you will design, fabricate and study optical properties of subwavelength optical antennas.