Dr. Maxim Durach Nanotechnology Computational Group Update
Physics Nanotechnology Computational Group. Dr. Durach with graduate students Matthew LePain and David Keen, undergraduates Shane Kearney and Reed Hodges.
Two major results have been obtained by the Nanotechnology Group, led by Dr. Maxim Durach. In a paper by Applied Physical Sciences graduate students David Keene and Matthew LePain and Dr. Durach it is shown that 30-nm thick monolayer metal-dielectric metasurfaces can drastically modify the properties of radiation passing through them and entirely change the spin state of the constituent photons. In their manuscript (arXiv:1512.08139, “Ultimately Thin Metasurface Wave Plates”), submitted for peer-review, they show that the extreme anisotropy of the proposed metasurfaces sets the ultimate lower limit for the thickness of optical waveplates. This result can be applied to the design of ultrathin wave plates, Pancharatnam-Berry phase optical elements and plasmon-carrying optical torque wrench devices.
Another important result is achieved in understanding of the nature of plasmonic drag effect (PLDE) in collaboration with Dr. Natalia Noginova from Norfolk State University. In their manuscript (arXiv:1601.06350, “On Nature of Plasmonic Drag Effect”), submitted for peer-review, they propose a mechanism of PLDE, the generation of enhanced electric currents under conditions of surface plasmon resonance, based on hot-electron-mediated plasmonic pressure model, which explains the observed in experiments relationship between the plasmon drag electromotive force (emf) and absorption and emphasizes the quantum plasmonics nature of PLDE. They were able to correctly calculate the magnitude of the emf in flat metal films for the first time, by taking the hot-electron momentum thermalization into account. This result is promising for applications in industry and biomedical field, since PLDE offers a new operational principle for hybrid plasmonic-electric circuitry, biosensors, detectors and imaging.”
Posted in Faculty, Students