Dr Zarko Gacevic from Institute for Systems based on Optoelectronics and Microtechnology, Technical University of Madrid visited IPB and presented a seminar

"Use of epitaxial techniques for realization of III-Nitride resonant cavity devices: diodes, lasers and polariton lasers"

Abstract of the seminar:
In semiconductor microcavities light is confined by high reflectivity distributed Bragg reflectors whereas matter is confined by quantum wells or dots. By proper tuning, the light and matter can be made to interact with one another, forming quasi-particles known as polaritons. The properties of microcavities are exploited for realization of high spectral purity light emitting devices (resonant cavity LEDs and vertical cavity surface emitting lasers) as well as nearly zero-threshold polariton lasers. This talk will be focused on epitaxial fabrication of III-nitride microcavities for applications in the violet/blue spectral range.

During his visit to IPB, dr Gacevic visited SCL, Center for Solid State Physics and Center for Photonics and gained insight into the research performed in these laboratories.