Optical properties of silicon-vacancy color centers in diamond created by ion implantation and post-annealing

Abstract

Silicon-vacancy (SiV) color centers have been created in diamond by ion implantation and post annealing at LABEC (Florence

Silicon-vacancy color centers in phosphorus-doped diamond

“…Sample A was implanted with four different Si-ion fluences of 10 8 cm -2 , 10 12 cm -2 , 10 13 cm -2 and 10 14 cm -2 . Unlike for intrinsic single-crystal diamond [8], fluence-dependent background at the emission wavelength of the SiV color centers is evident, especially for the higher implantation fluences, as depicted in Fig. 1a.…”

“…Figure 1b shows the measurement in different parts of the sample. Depending on the implantation fluence and on the observed region (the ion distribution for a given fluence is not uniform [8,29]), the contribution from the background changes. The region implanted with 10 8 cm -2 shows relatively low background, comparable to the region, where no ions are implanted.…”

“…[29]. To optically characterize the samples, spectrally and temporally resolved µphotoluminescence measurements are conducted in a homemade confocal microscopy setup equipped with a Hanbury-Brown Twiss interferometer for the verification of single-photon emission [8].…”

“…Under ambient conditions, color centers in diamond may represent an alternative platform. In particular, silicon vacancy (SiV) color centers have most of the fluorescence emission (>90%) concentrated in a narrow zero-phonon line at room temperature [8]. In addition, the center exhibits a short excited-state lifetime and a small inhomogeneous linewidth broadening [8].…”

Homoepitaxial Diamond Structures with Incorporated SiV Centers

“…The incorporation of color centers in these structures is mainly performed in situ or via ion implantation . Even though ion implantation offers a better spatial resolution for the incorporation of color centers through masks or via an aperture in the bulk material, or directly in structures, it is always accompanied with a damage of the diamond lattice affecting the optical properties of color centers in diamond.…”