Optical control of spin textures in quasi-one-dimensional polariton condensates

• Main Authors: Antón, C., Morina, S., Gao, T., Eldridge, P. S., Liew, Timothy Chi Hin, Martín, M. D., Hatzopoulos, Z., Savvidis, P. G., Shelykh, Ivan A., Viña, L.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/106673; http://hdl.handle.net/10220/25103
• Institution: Nanyang Technological University

We investigate spin transport through polarization-resolved spectroscopy by propagating polariton condensates in a quasi-one-dimensional microcavity ridge along macroscopic distances. Under circularly polarized, continuous-wave, nonresonant excitation, a sinusoidal precession of the spin in real space is observed whose phase depends on the emission energy. The experiments are compared with simulations of the spinor-polariton condensate dynamics based on a generalized Gross-Pitaevskii equation, modified to account for incoherent pumping, decay, and energy relaxation within the condensate.