TY - GEN
T1 - Study on the Enhancement of Diamond Fluorescence Characteristics by Multi-layer Anti-reflection Coating
AU - Li, Xuejiao
AU - Zhao, Libo
AU - Li, Zhikang
AU - Luo, Guoxi
AU - Yu, Mingzhi
AU - Ma, Yintao
AU - Li, Lei
AU - Fang, Xudong
AU - Jiang, Zhuangde
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - Quantum sensing has become a rapidly growing research within the area of sensor, which can break through the limits of traditional physical sensing and make sensing accuracy to the nanometer scale. Meanwhile nitrogen-vacancy (NV) center in bulk diamond as a sensor has varieties of applications because of its excellent characteristics. However, there are large optical reflection and low fluorescence collection efficiency at the diamond-air interface because of the large refractive index gap between diamond and air, thereby reducing the sensing sensitivity. In this work, we report a multi-layer anti-reflection coating and fabrication on the surface of diamond with genetic algorithm to solve optimization value of the average reflectance R-{ave} in the wavelength range of 600-800 nm. And we fabricate SiO2-Si3N4 double-layer anti-reflection coating on diamond substrate by plasma chemical vapor deposition. Experiment results show that with an anti-reflection coating, the fluorescence collection efficiency is significantly improved, and the average transmittance in the wavelength range of 600-800 nm is increased from 82.8% to 96.7%.
AB - Quantum sensing has become a rapidly growing research within the area of sensor, which can break through the limits of traditional physical sensing and make sensing accuracy to the nanometer scale. Meanwhile nitrogen-vacancy (NV) center in bulk diamond as a sensor has varieties of applications because of its excellent characteristics. However, there are large optical reflection and low fluorescence collection efficiency at the diamond-air interface because of the large refractive index gap between diamond and air, thereby reducing the sensing sensitivity. In this work, we report a multi-layer anti-reflection coating and fabrication on the surface of diamond with genetic algorithm to solve optimization value of the average reflectance R-{ave} in the wavelength range of 600-800 nm. And we fabricate SiO2-Si3N4 double-layer anti-reflection coating on diamond substrate by plasma chemical vapor deposition. Experiment results show that with an anti-reflection coating, the fluorescence collection efficiency is significantly improved, and the average transmittance in the wavelength range of 600-800 nm is increased from 82.8% to 96.7%.
UR - https://www.scopus.com/pages/publications/85082008029
U2 - 10.1109/PIERS-Spring46901.2019.9017389
DO - 10.1109/PIERS-Spring46901.2019.9017389
M3 - 会议稿件
AN - SCOPUS:85082008029
T3 - Progress in Electromagnetics Research Symposium
SP - 874
EP - 880
BT - 2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019
Y2 - 17 June 2019 through 20 June 2019
ER -