Investigation of topological light-transport phenomena by the analogy to electronic systems

2014 Fiscal Year Final Research Report

• Project/Area Number: 23540380
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: National Institute for Materials Science
• Principal Investigator: OCHIAI Tetsuyuki 独立行政法人物質・材料研究機構, 先端フォトニクス材料ユニット, 主任研究員 (80399386)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 光トポロジカル絶縁体 / トポロジカルフォトニクス / ヘリカルエッジ状態 / カイラルエッジ状態 / 電気磁気光学効果

Outline of Final Research Achievements

The goal of the present study is to realize novel transport properties of light, by the analogy to electronic systems such as quantum Hal systems and topological insulators. We have studied photonic crystals made of magnetooptical or　magnetoelectric media by the first-principles calculations of the radiation field. Various systems having nontrivial topology in momentum spaces can be realized. As a result, photonic chiral edge states and photonic helical edge states are demonstrated in such systems. In addition, we explain their properties by the symmetries. spin degrees of freedom, and effective hamiltonians.

Free Research Field

ナノフォトニクス