Figure 2 | Scientific Reports

Figure 2

From: Enrichment of ODMR-active nitrogen-vacancy centres in five-nanometre-sized detonation-synthesized nanodiamonds: Nanoprobes for temperature, angle and position

Figure 2

Fluorescence and ODMR properties of DND-bare and DND-OH. (a) Typical ODMR spectra of clusters of DND-OH. (b) Typical fluorescence (left) and NV−selective imaging protocol (SIP) derived (right) images of DND-OH (upper) and DND-bare (lower), which were dispersed in water, sonicated and strewn on a glass plate (scale bars 10 μm). (c) Fluorescence spectra of DND-OH (upper) and DND-bare (lower) acquired from randomly selected DND clusters (n = 8). Broken lines at 575 and 637 nm represent the zero-phonon lines of NV0 and NV−, respectively. (d) Rabi oscillation (left) and T2 relaxation time (right) of a typical NV− in DND-OH. T2 was measured by a simple Hahn echo sequence using a single π pulse, and evaluated by its 1/e-time. Both pulse ODMR measurements were performed with an applied magnetic field at the resonance of 2785 GHz (see Fig. 2(a) lower). Both ODMR spectra in Fig. 2(a) and both pulse ODMR experiments in Fig. 2(d) were recorded on a confocal setup.

Back to article page