報告一♦️：Bottom-Up Approaches for the Structuring of Silicon-Based Materials
報告人：Prof. Michel WONG CHI MAN
單 位：Laboratory Architectures Moléculaires et Matériaux Nanostructurés Institut
Charles Gerhardt Montpellier (UMR-CNRS 5253) Ecole Nationale Supérieure de Chimie
de Montpellier 8 rue de l’école normale – 34296 Montpellier CEDEX 5 – France
時 間：2009年10月15日(星期四)上午 9👮♂️：00
地 點：物理館512學術會議室
報告二⇾：Optical Activity in Chiral Metamaterials
報告人：Wing Yim Tam
單 位：Department of Physics and William Mong Institute of Nano Science
and Technology, The Hong Kong University of Science and Technology
時 間🔖：2009年10月15日（星期四）上午10🙎♀️：00
地 點🤤：物理館512學術會議室
Abstract:
Optical activity is the ability to rotate the polarization of light as observed in circular birefringent materials such as quartz and solutions of chiral molecules like sugar (sucrose). The study of optical activity spans many disciplines and has applications in various fields: e.g. in optics to manipulate the polarization of light, in chemistry to characterize substance in solutions and in medicine to measure blood sugar concentration. Natural chiral materials are too weak in producing optical activity in the nano scales, hindering their incorporation with recent rapidly developing nanotechnology. On the contrary, metamaterials - artificial materials engineered through structural designs to provide specific properties not readily available in nature - can serve as a possible solution for the integration. In this presentation I will summarize some of the recent developments in chiral metaimaterials and report some of our preliminary works on 2D double layered metallic chiral metamertials.
