Symposium 1: Functional Metastructures and Nanomaterials: Properties, Fabrication and Modeling VIII
14:00 Keynote talk : Single Photons and Atoms at Meta Surfaces
Girish S. Agarwal
Oklahoma State University (USA) We report several radiative effects involving exchange of single photons at meta surfaces. Quantum interferences at such surfaces can induce intra atomic interaction. We discuss the possibility of strong entanglement between artificial atoms on meta surfaces as well as two photon Hong-Ou-Mandel interference.
14:30 Invited talk : Optically-Induced Entanglement in Hybrid Quantum Dot/Plasmonic Systems
Matthew Otten (1),Raman A. Shah (2),Norbert F. Scherer (2),Misun Min (3),Matthew Pelton (4),Stephen K. Gray (5)
(1)Cornell University (USA) , (2)The University of Chicago (USA) , (3)Mathematics and Computer Science Division-Argonne National Laboratory (USA) , (4)University of Maryland (USA) , (5)Argonne National Laboratory (USA) Quantum dynamics calculations are carried out on model Hamiltonians corresponding two and three quantum dot systems interacting with a dissipative, plasmonic system that is subjected to ultrafast laser pulses. We show how the pulses can be used to create significant entanglement among the dots from an initially cold system.
14:50 : Plasmonic Optical Interferences in Self-Assembled Multiscale Metamaterials
Virginie Ponsinet, Johann Toudert, Xuan Wang, Clemence Tallet, Ashod Aradian, Philippe Barois
University of Bordeaux (France) We investigate the phase changes of visible light upon interaction with self-assembled polymer-gold nanocomposites, with a spectral response reflecting the interplay between plasmonic and optical interference effects. Thanks to a detailed study of the films by spectroscopic ellipsometry, which gives access to amplitude and phase information, their plasmonic and interferential spectral features are correlated with their nanostructure. We explore the potential of coupling plasmonic and photonic modes for multiscale metamaterial-based phase-sensitive environmental detection at the nanoscale.
15:05 Invited talk : Theoretical and computational analysis of quantum plasmons in graphene nanostructures
Nicolae C. Panoiu, Wei Wu
University College London (United Kingdom) We present some recent results regarding physical properties of optical spectra of single and coupled graphene nano-flakes, determined using the time-dependent density functional theory. The time evolution of the charge density has been calculated as well and used to identify the nature of the observed spectral resonances. For small graphene nano-flakes edge plasmons are dominant, whereas for larger ones the edge plasmons are accompanied by multipolar collective charge oscillations that can be identified as core plasmons.
15:25 : UHF Metamaterial Enhanced Vivaldi antenna
Ada-Simona Popescu (1),Igor Bendoym (2),Taulant Rexhepi (1),Andrii B. Golovin (1),David T. Crouse (1)
(1)City College of New York (USA) , (2)Phoebus Optoelectronics (USA) In this work, a UHF Vivaldi antenna is designed and uses metamaterials to improve its performance. The metamaterial in the antenna improves the directivity and gain enhancement and belong to the larger class of anisotropic zero index metamaterials. A technique for lowering dimensions of the metamaterial unit cell is presented and applied. An antenna with the integrated metamaterials is designed. Simulation results for antenna and metamaterials are presented.
15:40 : Weak measurement of optical spin Hall effect in phase-discontinuity metasurface
Yeon Ui Lee, Jeong Weon Wu
Ewha Womans University (Korea) Recently it has been demonstrated that a rapid phase-change at a phase-discontinuity metasurface (PDM) leads to an additional momentum gradient enabling a direct observation of optical spin Hall (OSH) shift. We show that that the helicity-dependent OSH shift depends on incidence and refraction angles at PDM, and construct a weak value measurement to control OSH shift by a variable phase retardance in the post-selection.
15:55 Invited talk : Integrated nanowire plasmonics
K. Goodfellow (1),C. Chakraborty (1),R. Beams (1),L. Novotny (2),A. N. Vamivakas (1)
(1)University of Rochester (USA) , (2)ETH-Photonics Laboratory (Switzerland) Atomically thin materials, such as graphene and transition metal dichalcogenides, offer an interesting platform to tailor nanoscale light-matter interaction. The ease with which these materials can be incorporated into optoelectronic devices has given rise to the emerging area of nano-optoelectronics. In this talk I will discuss some recent results on merging plasmonics and atomically thin materials as well as the possibility of exploiting atomically thin semiconductors for integrated quantum photonics applications.