Plasmon-Triggered Ultrafast Operation of Color Centers in Hexagonal Boron Nitride Layers

被引:6
|
作者
Karanikolas, Vasilios [1 ]
Iwasaki, Takuya [1 ]
Henzie, Joel [2 ]
Ikeda, Naoki [3 ,5 ]
Yamauchi, Yusuke [2 ,4 ]
Wakayama, Yutaka [1 ]
Kuroda, Takashi [5 ]
Watanabe, Kenji [5 ]
Taniguchi, Takashi [1 ]
机构
[1] Natl Inst Mat Sci, Int Ctr Young Sci ICYS, Tsukuba 3050044, Japan
[2] Natl Inst Mat Sci, JST ERATO Yamauchi Mat Space Tecton Project & Int, Tsukuba 3050044, Japan
[3] Natl Inst Mat Sci, Res Network & Facil Serv Div, Tsukuba 3050044, Japan
[4] Univ Queensland, Australian Inst Bioengn & Nanotechnolog y AIBN, Brisbane, Qld 4072, Australia
[5] Natl Inst Mat Sci, Res Ctr Funct Mat, Tsukuba 3050044, Japan
来源
ACS OMEGA | 2023年 / 8卷 / 16期
关键词
QUANTUM EMITTERS; EMISSION; NANOPARTICLES; DOTS;
D O I
10.1021/acsomega.3c00512
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
High-quality emission centers in two-dimensional materials are promising components for future photonic and optoelectronic applications. Carbon-enriched hexagonal boron nitride (hBN:C) layers host atom-like color-center (CC) defects with strong and robust photoemission up to room temperature. Placing the hBN:C layers on top of Ag triangle nanoparticles (NPs) accelerates the decay of the CC defects down to 46 ps from their reference bulk value of 350 ps. The ultrafast decay is achieved due to the efficient excitation of the plasmon modes of the Ag NPs by the near field of the CCs. Simulations of the CC/ Ag NP interaction show that higher Purcell values are expected, although the measured decay of the CCs is limited by the instrument response. The influence of the NP thickness on the Purcell factor of the CCs is analyzed. The ultrafast operation of the CCs in hBN:C layers paves the way for their use in demanding applications, such as single-photon emitters and quantum devices.
引用
收藏
页码:14641 / 14647
页数:7
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