Single-Photon-Emitting Optical Centers in Diamond Fabricated upon Sn Implantation (CROSBI ID 251910)
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Tchernij, S. Ditalia ; Herzig, T. ; Forneris, J. ; Küpper, J. ; Pezzagna, S. ; Traina, P. ; Moreva, E. ; Degiovanni, I. P. ; Brida, G. ; Skukan, Natko ; Genovese, M. ; Jakšić, Milko ; Meijer, J. ; Olivero, P.
engleski
Single-Photon-Emitting Optical Centers in Diamond Fabricated upon Sn Implantation
The fabrication of luminescent defects in single-crystal diamond upon Sn implantation and annealing is reported. The relevant spectral features of the optical centers (emission peaks at 593.5, 620.3, 630.7, and 646.7 nm) are attributed to Sn-related defects through the correlation of their photoluminescence (PL) intensity with the implantation fluence. Single Sn-related defects were identified and characterized through the acquisition of their second-order autocorrelation emission functions, by means of Hanbury-Brown and Twiss interferometry. The investigation of their single-photon emission regime as a function of excitation laser power revealed that Sn-related defects are based on three-level systems with a 6 ns radiative decay lifetime. In a fraction of the studied centers, the observation of a blinking PL emission is indicative of the existence of a dark state. Furthermore, absorption dependence on the polarization of the excitation radiation with similar to 45% contrast was measured. This work shed light on the existence of a new optical center associated with a group-IV impurity in diamond, with similar photophysical properties to the already well-known Si-V and Ge-V emitters, thus, providing results of interest from both the fundamental and applicative points of view
diamond ; color centers ; ion implantation ; single-photon ; tin
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