Optical gain in NV-colour centres for highly-sensitive magnetometry: a theoretical study

被引：5

作者：

Savitski, Vasili G. ^{[1
]}

机构：

[1] Univ Strathclyde, Inst Photon, Dept Phys, Glasgow G1 1RD, Lanark, Scotland

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2017年 / 50卷 / 47期

基金：

欧洲研究理事会;

关键词：

diamond; NV-colour centres; magnetometry; optical gain; WAVE-GUIDE; DIAMOND;

D O I：

10.1088/1361-6463/aa8e8e

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Optical gain in an amplifier based on NV-colour centres (CC) in diamond is proposed as a new method for optical magnetic field detection. An analytical expression for magnetic field sensitivity with this method is deduced. The sensitivity is highest at the pump intensities about 100 times above the saturation intensity of NV-CC and can reach values of similar to 1.4 fT (v Hz)(-1) in a pump-probe configuration with an NV-CC concentration in diamond of 2.5 ppm. Collection efficiency of probe emission can be simpler and significantly higher than that of NV-CC luminescence, used for conventional optical magnetometry in diamond. This makes this method attractive for applications requiring remote magnetic field sensing.

引用

页数：6