Antichiral edge states in an exciton polariton strip

We present a scheme to obtain antichiral edge states in an exciton-polariton honeycomb lattice with strip geometry, where the modes corresponding to both edges propagate in the same direction. Under resonant pumping the effect of a polariton condensate with nonzero velocity in one linear polarizatio...

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Main Authors: Mandal, S., Ge, R., Liew, Timothy Chi Hin
其他作者: School of Physical and Mathematical Sciences
格式: Article
語言:English
出版: 2019
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在線閱讀:https://hdl.handle.net/10356/83535
http://hdl.handle.net/10220/49801
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機構: Nanyang Technological University
語言: English
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總結:We present a scheme to obtain antichiral edge states in an exciton-polariton honeycomb lattice with strip geometry, where the modes corresponding to both edges propagate in the same direction. Under resonant pumping the effect of a polariton condensate with nonzero velocity in one linear polarization is predicted to tilt the dispersion of polaritons in the other, which results in an energy shift between two Dirac cones, and the otherwise flat edge states become tilted. Our simulations show that due to the spatial separation from the bulk modes the edge modes are robust against disorder.