Room-temperature strong coupling between dipolar plasmon resonance in single gold nanorod and two-dimensional excitons in monolayer WSe2

• 来源期刊: 中国物理B（英文版）
• 关键词: Au nanorod-WSe2 heterostructures strong coupling all-solid-state system room temperature
• 年，卷（期）: 2018,（9）
• 页码范围: 160-167
• 页数: 8页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/9/096101

摘要

All-solid-state strong coupling systems with large vacuum Rabi splitting energy have great potential applications in future quantum information technologies,such as quantum manipulations,quantum information storage and processing,and ultrafast optical switches.Monolayer transition metal dichalcogenides(TMDs)have recently been explored as excel-lent candidates for the observation of solid-state strong coupling phenomena.In this work,from both experimental and theoretical aspects,we explored the strong coupling effect by integrating an individual plasmonic gold nanorod into the monolayer tungsten diselenide(WSe2).Evident anti-crossing behavior was observed from the coupled energy diagram at room temperature;a Rabi splitting energy of 98 meV was extracted.