Vibrational signatures for the identification of single-photon emitters in hexagonal boron nitride
Artikel i vetenskaplig tidskrift, 2021

Color centers in hexagonal boron nitride (h-BN) are among the brightest emission centers known, yet the origins of these emission centers are not well understood. Here, using first-principles calculations in combination with the generating function method, we systematically elucidate the coupling of specific defects to the vibrational degrees of freedom. We show that the line shape of many defects exhibits strong coupling to high frequency phonon modes and that CN, CB, CB-CN dimer, and VB can be associated with experimental line shapes. Our detailed theoretical study serves as a guide to identify optically active defects in h-BN that can suit specific applications in photonic-based quantum technologies, such as single photon emitters, hybrid spin-photon interfaces, or spin-mechanics interfaces.


Christopher Linderälv

Chalmers, Fysik, Kondenserad materie- och materialteori

Witlef Wieczorek

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Paul Erhart

Chalmers, Fysik, Kondenserad materie- och materialteori

Physical Review B

24699950 (ISSN) 24699969 (eISSN)

Vol. 103 11 115421

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