Integration of silicon-vacancy centers in nanodiamonds with an optical nanofiber

TL;DR

This paper demonstrates the successful integration of silicon-vacancy centers in nanodiamonds with an optical nanofiber, enabling potential applications in quantum photonics.

Contribution

It introduces a novel method for attaching SiV-NDs to nanofibers and systematically characterizes their optical properties.

Findings

Successful attachment of SiV-NDs to nanofiber surface.

Measured fluorescence spectra and photon count rates.

Confirmed quantum emission properties of integrated SiV-NDs.

Abstract

We experimentally demonstrate the integration of silicon-vacancy centers in nanodiamonds (SiV-NDs) with an optical nanofiber (ONF). We grow SiV-NDs on seed NDs dispersed on a quartz substrate using a microwave plasma-assisted chemical vapor deposition method. First, we search and characterize SiV-NDs on a quartz substrate using an inverted confocal microscope and an atomic force microscope (AFM). Subsequently, we pick up SiV-NDs from the quartz substrate and deposit them on the surface of a free-standing ONF using the AFM tip. The fluorescence emission spectrum, photon count rate, and intensity correlations for SiV-NDs are systematically measured.