Realization of all-optical vortex switching in exciton-polariton condensates

Xuekai Ma; Bernd Berger; Marc Assmann; Rodislav Driben; Torsten Meier; Christian Schneider; Sven Höfling; Stefan Schumacher

doi:10.1038/s41467-020-14702-5

Realization of all-optical vortex switching in exciton-polariton condensates

Xuekai Ma, Bernd Berger, Marc Assmann, Rodislav Driben, Torsten Meier, Christian Schneider, Sven Höfling, Stefan Schumacher

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the 'vorticity', they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner.

Original language	English
Article number	897
Number of pages	7
Journal	Nature Communications
Volume	11
DOIs	https://doi.org/10.1038/s41467-020-14702-5
Publication status	Published - 14 Feb 2020

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Cite this

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title = "Realization of all-optical vortex switching in exciton-polariton condensates",

abstract = "Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the 'vorticity', they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner. ",

author = "Xuekai Ma and Bernd Berger and Marc Assmann and Rodislav Driben and Torsten Meier and Christian Schneider and Sven H{\"o}fling and Stefan Schumacher",

note = "This work was supported by the Deutsche Forschungsgemeinschaft (DFG) through the collaborative research center TRR142 (grant No. 231447078, project A04) and Heisenberg program (grant No. 270619725) and by the Paderborn Center for Parallel Computing, PC2. X.M. further ackowledges support from the NSFC (No. 11804064). The W{\"u}rzburg group acknowledges support by the state of Bavaria.",

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T1 - Realization of all-optical vortex switching in exciton-polariton condensates

AU - Ma, Xuekai

AU - Berger, Bernd

AU - Assmann, Marc

AU - Driben, Rodislav

AU - Meier, Torsten

AU - Schneider, Christian

AU - Höfling, Sven

AU - Schumacher, Stefan

N1 - This work was supported by the Deutsche Forschungsgemeinschaft (DFG) through the collaborative research center TRR142 (grant No. 231447078, project A04) and Heisenberg program (grant No. 270619725) and by the Paderborn Center for Parallel Computing, PC2. X.M. further ackowledges support from the NSFC (No. 11804064). The Würzburg group acknowledges support by the state of Bavaria.

PY - 2020/2/14

Y1 - 2020/2/14

N2 - Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the 'vorticity', they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner.

AB - Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the 'vorticity', they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner.

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JO - Nature Communications

JF - Nature Communications

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Realization of all-optical vortex switching in exciton-polariton condensates

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