Ultrafast characterization of photonic topological edge modes (Conference Presentation)

Liang Feng; Zhifeng Zhang; Mingsen Pan; Han Zhao; Pei Miao

doi:10.1117/12.2526795

9 September 2019 Ultrafast characterization of photonic topological edge modes (Conference Presentation)

Liang Feng, Zhifeng Zhang, Mingsen Pan, Han Zhao, Pei Miao

Proceedings Volume 11081, Active Photonic Platforms XI; 110810F (2019) https://doi.org/10.1117/12.2526795
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

Through systematically manipulating the couplings in the photonic lattice, the topological nature emerges associated with edge state dynamics. Here, we demonstrate a robust photonic zero mode sustained by a spatial non-Hermitian phase transition in a parity-time (PT) symmetric lattice despite the same topological order across the entire system and a flexible topological photonic lattice with multiple topologically nontrivial dispersion bands. Heterodyne measurements clearly reveal the ultrafast transport dynamics and energy of the edge states at a femtosecond scale, validating the designed topological features.

Conference Presentation

Citation Download Citation

Liang Feng, Zhifeng Zhang, Mingsen Pan, Han Zhao, and Pei Miao "Ultrafast characterization of photonic topological edge modes (Conference Presentation)", Proc. SPIE 11081, Active Photonic Platforms XI, 110810F (9 September 2019); https://doi.org/10.1117/12.2526795

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