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Conferences > CLEO_QELS > 2014 > FTu1B > FTu1B.3

Spatiotemporal coherence of GaN excitons excited by an optical vortex with multiple orbital angular momentum

Kyohhei Shigematsu, Keisaku Yamane, Ryuji Morita, and Yasunori Toda

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Abstract

The spatiotemporal coherence of excitons is investigated by degenerate four-wave-mixing using optical vortices with multiple orbital angular momentum (OAM). The OAM-resolved signal indicates that the topological phase with large OAM is robust against spatial decoherence.

© 2014 Optical Society of America

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