Evaluation of the polarization dependence of an electron spin properties of NV nanodiamond through a near-field etching approach

摘要

Our previous studies already showed that a near-field (NF) etching (Fig.1(a)) is able to improve T2 coherence times of nitrogen-vacancy (NV) centers in nanodiamonds [1]. In this paper we want to further display how the NF-etching changes the optically detected magnetic resonance (ODMR) spectrum (Fig.1(b)) of nanodiamond NVs and the T2 Hahn-Echo envelope (Fig. 1©).