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Atreyie Ghosh

University of Pittsburgh
Advisor
Hrvoje Petek
Education
Doctor of Philosophy, Physics, (PhD Candidate) University of Pittsburgh, PA, USA, 2017-Present Supervisor: Prof. Hrvoje Petek,
Topic of Dissertation: Ultrafast microscopy of plasmonic spin topology.
Master of Science, Physics, Indian Institute of Technology-Madras (IIT-M), Chennai, India, May 2016
Bachelor of Science, Physics, St. Xavier’s College, University of Calcutta, India, May 2014
Profile

My current PhD research focuses on ultrafast microscopy of plasmonic spin topology on nanometer spatial and femtosecond temporal scale. Topological quasi-particles such as skyrmions and merons, exhibit non-trivial and robust spin topology; hence, they demonstrate potential applications in spin-based electronics, information storage and quantum computing. By combining ultrafast microscopy, nanofabrication, electromagnetic simulations and mathematical analysis, my research studies provide significant contributions to understand the plasmonic counterpart to these spin topologies, which is currently a rapidly evolving field.

Awards
  • 2022-2023 PQI Fellow
  • Andrew Mellon Predoctoral Fellowship 2021-2022
  • Kenneth P. Dietrich School of A&S Predoctoral Fellowship 2020
Most Cited Publications
  • Yanan Dai, Zhikang Zhou, Atreyie Ghosh, Roger S. K. Mong, Atsushi Kubo, Chen-Bing Huang, Hrvoje Petek, “Plasmonic topological quasiparticle on the nanometre and femtosecond scales”, Nature, 588, 616-619 (2020), https://doi.org/10.1038/s41586-020-3030-1.
  • Atreyie Ghosh, Sena Yang, Yanan Dai, Zhikang Zhou, Chen-Bing Huang, Hrvoje Petek, “A topological lattice of plasmonic meron”, Featured Article: Applied Physics Reviews 8, 041413 (2021), https://doi.org/10.1063/5.0062133.
  • Yanan Dai, Zhikang Zhou, Atreyie Ghosh, Sena Yang, Chen-Bing Huang, Hrvoje Petek, “Ultrafast nanofemto photoemission electron microscopy of vectorial plasmonic fields”, MRS Bulletin, 46, 738-746 (2021), https://doi.org/10.1557/s43577-021-00152-x.
  • Yanan Dai, Zhikang Zhou, Atreyie Ghosh, Karan Kapoor, Maciej Dąbrowski, Atsushi Kubo, Chen-Bing Huang, Hrvoje Petek, “Ultrafast microscopy of a Plasmonic Spin Skyrmion”, Featured Article: Applied Physics Reviews 9, 011420 (2022), https://doi.org/10.1063/5.0084482
Recent Publications
  • Atreyie Ghosh, Sena Yang, Yanan Dai, Hrvoje Petek, “The spin texture topology of polygonal plasmon fields”, ACS Photonics, 10, 13-23 (2023), https://doi.org/10.1021/acsphotonics.2c01491.
  • Yanan Dai, Atreyie Ghosh, Sena Yang, Zhikang Zhou, Chen-Bing Huang, Hrvoje Petek, “Poincaré Engineering of Surface Plasmon Polaritons”, Nature Reviews Physics 4, 562- 564 (2022), https://doi.org/10.1038/s42254-022-00492-w.