Study of concerted phenomena between localized plasmon resonance and exciton in heavily-doped semicondcutor nanoparticles

2016 Fiscal Year Final Research Report

• Project/Area Number: 26400316
• 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: Nagoya Institute of Technology
• Principal Investigator: Hamanaka Yasushi 名古屋工業大学, 工学(系)研究科(研究院), 准教授 (20280703)
• Co-Investigator(Renkei-kenkyūsha): KUZUYA Toshihiro 室蘭工業大学, 工学部, 助教 (00424945)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 局在プラズモン共鳴 / ナノ粒子 / 半導体 / 増強近接場 / キャリア密度制御

Outline of Final Research Achievements

Localized surface plasmon resonance (LSPR) is a collective oscillation of conduction electrons that have been directly excited by light, and it is a characteristic optical response of metal nanoparticles. LSPRs provide an electric field enhancement nearby the nanoparticle’s surface. Such a strong near-field can dramatically improve the efficiency of light-matter interaction and enables various photonic applications. In this project, frequency-tunable LSPRs of doped semiconductor nanoparticles were studied. Fundamental optical properties of copper sulfide nanoparticles were investigated and characteristics of their LSPRs were elucidated. Furthermore, fabrication methods of frequency-tunable plasmonic copper sulfide nanoparticles were developed.

Free Research Field

光物性物理学