Published Articles
1. Atreyie Ghosh, Sena Yang, Yanan Dai, Hrvoje Petek, "The Spin Texture Topology of Polygonal Plasmonic Fields,” Perspective article in ACS Photonics 10, 13 (2023).
Topological Plasmonics
We tailor plasmonic vortices by design of their generating structures.
2. Biao Huang, Tsz-Him Leung, Dan M. Stamper-Kurn, and W. Vincent Liu, "Discrete Time Crystals Enforced by Floquet-Bloch Scars," Physical Review Letters 129, 133001 – Published 19 September 2022
3. Yanan Dai, Atreyie Ghosh, Sena Yang, Zhikang Zhou, Chen-Bin Huang, Hrvoje Petek, “Poincaré Engineering of Surface Plasmon Polaritons,” Nature Reviews Physics 4, 562 (2022).
Poincaré Engineering
We design vectorial electromagnetic fields that focus magnetoelectric interactions (E∙B) on the nanometer scale as a probe for axion matter. Surface plasmons can be Poincaré engineered to dress proximate materials via Floquet mechanism and encode quantum information on the nano-femto scales.
4. Yafei Li, Qing Yuan, Deping Guo, Cancan Lou, Xingxia Cui, Guangqiang Mei, Hrvoje Petek, Limin Cao, Wei Ji, and Min Feng, “One-Dimensional Electronic Flat Bands in an Untwisted Moiré Superlattice,” Advanced Materials, 2300572 (2023)
5. Alexej Pashkin, Christian Bernhard, Hrvoje Petek, Xin Yao, and Jure Demsar, “Selective coupling of coherent optical phonons in YBa2Cu3O7-δ with electronic transitions,” Physical Review B 107, 184302 (2023).
6. Aolei Wang, Xiang Jiang, Qijing Zheng Hrvoje Petek, and Jin Zhao, "Ultrafast Many-Body Bright-Dark Exciton Transition in Anatase TiO2" Proceedings of the National Academy of Sciences, 120, e2307671120 (2023).
7. Atreyie Ghosh, Sena Yang, Yanan Dai, W. Vincent Liu, and Hrvoje Petek, “Plasmonic Vortices Host Magnetoelectric Interactions,” Physical Review Research, 6 013163 (2024).
Nanofemto E∙B fields
Plasmonic vortices are found to host pseudo-scalar E∙B fields that are odd under parity 𝒫 and time 𝒯 inversion, but even under the joint 𝒫𝒯 symmetry, enabling them to drive the magnetoelectric response and act as a source of the axion field. We show the circulating plasmonic k vectors and the magnitude and sign of their corresponding pseudo-scalar E∙B field.
