Collective state transitions of exciton-polaritons loaded into a periodic potential

• Main Authors: Winkler, K., Egorov, O. A., Savenko, I. G., Ma, X., Estrecho, E., Gao, T., Müller, S., Kamp, M., Liew, Timothy Chi Hin, Ostrovskaya, E. A., Höfling, S., Schneider, C.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2017
• Subjects: Bose gases; Exciton-polaritons
• Online Access: https://hdl.handle.net/10356/85834; http://hdl.handle.net/10220/43875
• Institution: Nanyang Technological University

We study the loading of a nonequilibrium, dissipative system of composite bosons—exciton polaritons—into a one-dimensional periodic lattice potential. Utilizing momentum resolved photoluminescence spectroscopy, we observe a transition between an incoherent Bose gas and a polariton condensate, which...