he nitrogen vacancy (NV) centers in diamonds have important significance and broad prospects in solid-state quantum emitters. However, the possibility of coupling NV centers with photon or broadband plasma nanostructures to achieve ultra sensitive biomarkers has not yet been fully realized. In fact, manufacturing independent hybrid diamond imaging nanoprobes with enhanced brightness and high temporal resolution characteristics still faces challenges. Therefore, there is an urgent need to develop an efficient and universal strategy to achieve efficient coupling between nano diamond NV centers and plasma.
Recently, Nano Letters published online the research progress of efficient construction of plasma enhanced NV color centers in nanodevices by the Liang Le research group of the Institute of Advanced Research at Wuhan University and the Ishan Barman research group of Johns Hopkins University. They developed a hybrid independent plasma nanodiamond using a bottom-up DNA self-assembly method, and constructed a closed plasma nanocavity, High efficiency is achieved to completely separate individual nano diamonds, significantly accelerating the transition rate of NV centers in nano diamonds. The related single nano particle spectral characterization shows that the brightness and emission rate of plasma nano diamonds are significantly enhanced. Utilizing the versatility of DNA self-assembly, we aim to create nanocomponents with various variants of different sizes of nano diamond and gold nanoparticles. Through systematic research on structure and performance, it was found that there is a causal relationship between transition dynamics and plasma nanocavities, and it was demonstrated that closed plasma nanocavities are superior to open or semi open nanocavities.
Figure 1. Plasma nano diamond constructed based on DNA self-assembly
The nano components constructed in this article provide a powerful, universal, and biocompatible method that can enhance the conversion rate and brightness of nano diamonds with NV centers. This component is expected to serve as a stable solid-state single photon source in the future and serve as a multifunctional platform for studying quantum effects in biological systems by improving spatial and temporal resolution.
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2023-10-10
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