Enhanced emission collection of VB− in hexagonal boron nitride by solid immersion lens and plasmon-Reference-Cited by-同舟云学术

Enhanced emission collection of VB− in hexagonal boron nitride by solid immersion lens and plasmon

Published:2023-08-21 Issue:8 Volume:123 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Yang Yuan-Ze¹²,Liu Wei¹²,Zeng Xiao-Dong¹²,Guo Nai-Jie¹²³,Li Zhi-Peng¹²,Xie Lin-Ke¹²,Liu Jun-You¹²³,Wang Yi-Tao¹²^ORCID,Wang Zhao-An¹²,Zhou Ji-Yang¹²,Xu Jin-Shi¹²³,Tang Jian-Shun¹²³,Li Chuan-Feng¹²³^ORCID,Guo Guang-Can¹²³^ORCID

Affiliation:

1. CAS Key Laboratory of Quantum Information, University of Science and Technology of China 1 , Hefei, Anhui 230026, China

2. CAS Center For Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China 2 , Hefei, Anhui 230026, China

3. Hefei National Laboratory, University of Science and Technology of China 3 , Hefei, Anhui 230088, China

Abstract

Hexagonal boron nitride (hBN) has brought widespread attention as a host material of various quantum emitters due to its two-dimensional nature and wide bandgap. Among the versatile quantum emitters in hBN, the negatively charged boron vacancy (VB−) stands out for its high contrast of optically detected magnetic resonance signal and the ability of spin control. Here, we report a method to implement 8.6-fold photoluminescence enhancement of VB− by using a solid immersion lens (SIL). We further combined an Au waveguide, Ag nanoparticles, and SIL to achieve an 18.6-fold photoluminescence overall enhancement of VB−. Our work provides a portable method to enhance the collection and emission efficiency of VB−, which is helpful for its practical applications in quantum technologies such as quantum sensing and quantum information.

Funder

Innovation Program for Quantum Science and Technology

National Natural Science Foundation of China

Youth Innovation Promotion Association of the Chinese Academy of Sciences

Open Research Projects of Zhejiang Lab

Fok Ying Tung Education Foundation

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

Link

https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/5.0164886/18099138/084003_1_5.0164886.pdf

Reference39 articles.

1. Hybrid integrated quantum photonic circuits

2. Coherent Control of Nitrogen-Vacancy Center Spins in Silicon Carbide at Room Temperature

3. Coherent Control of Defect Spins in Silicon Carbide above 550 K

4. Quantum entanglement between an optical photon and a solid-state spin qubit

5. High-fidelity projective read-out of a solid-state spin quantum register