题目：Using Liquid Crystals to tune: Lenses, Surface Plasmons and Metamaterials
时间：2019年1月16日上午10点
地点：南区光电物理楼1212会议室
报告人：Pof.Victor Reshetnyak（Taras Shevchenko National University of Kyiv）
摘要：In this talk I will first briefly review basic properties of liquid crystals (LCs). Then I’ll show how liquid crystals can be used to electrically tune optical power of liquid crystal lenses and present theoretical modelling for several types of liquid crystal lenses [1]. Next part of my presentation is about using LCs to control surface plasmons, in particular Tamm plasmons and plasmons in monolayer graphene and graphene ribbons [2]. Finally I’ll discuss how to model the effective dielectric function of core-shell plasmonic nanoparticles imbedded in an anisotropic matrix and use of these particles to tune metamaterials [3,4].
[1] Yi-Hsin Lin and Yu-Jen Wang and Victor Reshetnyak, Liquid crystal lenses with tunable focal length, Liquid Crystals Reviews (2017), 5, 111-143
[2] Victor Yu. Reshetnyak, Timothy J. Bunning, Dean R. Evans Using liquid crystals to control surface plasmons, Liquid Crystals (2018) DOI: 10.1080/02678292.2018.1500651
[3] V.Yu. Reshetnyak, I.P.Pinkevych, T.J. Sluckin, A.M. Urbas and D.R.Evans Effective medium theory for anisotropic media with plasmonic core-shell nanoparticle inclusions, Eur. Phys. J. Plus (2018) 133: 373,
https://doi.org/10.1140/epjp/i2018-12226-4
[4] V. Yu. Reshetnyak, I. P. Pinkevych, A. M. Urbas, and D. R. Evans Controlling hyperbolic metamaterials with a core-shell nanowire array, Optical Materials Express (2017), 7, 542-554.
