Spin selective filtering of polariton condensate flow

Spin selective filtering of polariton condensate flow

Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge waveguide is reported. A nonresonant laser beam provides the source of propagating polaritons, while a second circularly pol...

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Bibliographic Details
Main Authors: Gao, T., Antón, C., Liew, Timothy Chi Hin, Martín, M. D., Hatzopoulos, Z., Viña, L., Eldridge, P. S., Savvidis, P. G.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2015
Subjects:
Polarization
Polaritons
Online Access:https://hdl.handle.net/10356/102832
http://hdl.handle.net/10220/38674
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Institution: Nanyang Technological University
Language: English
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Summary:Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge waveguide is reported. A nonresonant laser beam provides the source of propagating polaritons, while a second circularly polarized weak beam imprints a spin dependent potential barrier, which gates the polariton flow and generates polariton spin currents. A complete spin-based control over the blocked and transmitted polaritons is obtained by varying the gate polarization.

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