Engineer Light-Matter Interactions: From Weak to Strong Coupling Regime

工程师光与物质相互作用：从弱耦合到强耦合机制

• 批准号: 21K13868
• 负责人: KARANIKOLAS Vasileios
• 金额: $ 2.75万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K13868/
• 关键词: Quantum light; Color centers; 2D materials; Quantum optics; Localized plasmons; Ultrafast operation; Ultrabright source; Purcell factor; Quantum materials; Surface plasmons; Nanoantenna; Nano-photonics

Carbon enriched hexagonal boron nitride (hBN) bulk crystal is exfoliated to hBN nanosheets on a Si/SiO2 substrate. We focus on the color-center (CC) emission peak at 804nm, which preserves its emission properties up to room temperatures while presenting a fast operation with a lifetime of 300ps.Through numerical simulations we choose Ag triangle nanoparticles (NPs) that support a localized plasmon resonance at 800nm. We place them on top of a Si/SiO2 substrate.We mechanically transfer a hBN nanosheet, of 30nm thickness, on top of the Ag nanoparticles. The near-field of the CCs excites the plasmon modes of the Ag NP. Then, the CCs lifetime is reduced from 300ps to below 50ps and the CC's signal is enhanced. Hence, the CC/Ag NP combined system presents an ultrafast and ultrabright operation.

在Si/SiO2衬底上将富含碳的六方氮化硼（hBN）块体晶体剥离成hBN纳米片。我们重点研究了在804 nm处的色心发射峰，该发射峰在室温下仍保持发射特性，同时具有300 ps的快速工作寿命。通过数值模拟，我们选择了在800 nm处支持局域等离子体共振的Ag三角形纳米颗粒。我们将它们放置在Si/SiO_2衬底上，并将30 nm厚的hBN纳米片机械转移到Ag纳米颗粒上。CC的近场激发Ag NP的等离子体激元模式。然后，CC的寿命从300 ps降低到50 ps以下，并且CC的信号被增强。因此，CC/Ag NP组合系统呈现超快和超亮操作。

项目成果

Quantum surface effects in strong coupling dynamics

强耦合动力学中的量子表面效应

• DOI: 10.1103/physrevb.104.l201405
• 发表时间: 2022
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Karanikolas Vasilios;Thanopulos Ioannis;Cox Joel D.;Kuroda Takashi;Inoue Jun-ichi;Mortensen N. Asger;Paspalakis Emmanuel;Tserkezis Christos
• 通讯作者: Tserkezis Christos

Magnon-mediated spin entanglement in the strong-coupling regime

强耦合状态下磁振子介导的自旋纠缠

• DOI: 10.1103/physrevresearch.4.043180
• 发表时间: 2022
• 期刊: Physical Review Research
• 影响因子: 4.2
• 作者: Karanikolas Vasilios;Kuroda Takashi;Inoue Jun-ichi
• 通讯作者: Inoue Jun-ichi

Perspective on 2D material polaritons and innovative fabrication techniques

• DOI: 10.1063/5.0074355
• 发表时间: 2022-01-24
• 期刊: APPLIED PHYSICS LETTERS
• 影响因子: 4
• 作者: Karanikolas, Vasilios;Suzuki, Seiya;Iwasaki, Takuya
• 通讯作者: Iwasaki, Takuya

Vasilios Karanikolas、Takuya Iwasaki、Joel Henzie、Naoki Ikeda、Yusuke Yamauchi、Yutaka Wakayama、Takashi Kuroda、Kenji Watanabe、Takashi Taniguchi

Vasilios Karanikolas、岩崎卓也、Joel Henzie、池田直树、山内佑介、若山裕、黑田隆、渡边贤二、谷口隆

• 发表时间: 2022
• 期刊: arXiv:2211.09339
• 作者: Karanikolas Vasilios;Kuroda Takashi;Inoue Jun-ichi;Plasmon triggered ultrafast operation of color centers in hBN layers
• 通讯作者: Plasmon triggered ultrafast operation of color centers in hBN layers

Strong coupling in the entanglement dynamics of two qubits interacting with a graphene nanodisk

• DOI: 10.1063/5.0119264
• 发表时间: 2022-10
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: N. Iliopoulos;I. Thanopulos;V. Karanikolas;E. Paspalakis