Theory and applications of photonic Dirac cones

2016 Fiscal Year Final Research Report

• Project/Area Number: 26610090
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: National Institute for Materials Science
• Principal Investigator: Sakoda Kazuaki 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 上席研究員 (90250513)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ディラックコーン / フォトニック結晶 / メタマテリアル / 量子井戸 / 有効質量 / 群速度 / エネルギー伝搬速度

Outline of Final Research Achievements

In this study, we theoretically analyzed the basic properties of a special dispersion relation of light, which is called photonic Dirac cone, proposed concrete specimen’s structures by numerical calculations, and proposed an experimental method to detect Dirac cones. In addition, we extended our analysis to other wave phenomena such as electronic waves. We proposed, in particular, a method to control the electron effective mass by the Dirac cone, which determines the easiness of the flow of electric currents.

Free Research Field

光物性物理学