Exciton-polaritons in semiconductor microcavities have been studied intensely, both with respect to their intriguing fundamental physical properties and with respect to their potential in novel device designs. The latter requires ways to control polaritonic systems, and all-optical control mechanisms are considered to be especially useful. In this talk, we discuss and review our efforts to control the polariton density, utilizing optical four-wave mixing instabilites, and the spin or polarization textures resulting from the optical spin Hall effect. Both effects are readily observable in the cavity’s far-field emission, and hence potentially useful for optoelectronic and spinoptronic device applications.

Date Published: 8 May 2017
PDF: 9 pages
Proc. SPIE 10193, Ultrafast Bandgap Photonics II, 101930G (8 May 2017); doi: 10.1117/12.2263383

Published in SPIE Proceedings Vol. 10193:
Ultrafast Bandgap Photonics II
Michael K. Rafailov, Editor(s)