학술논문
A telecom O-band emitter in diamond
Document Type
Working Paper
Author
Mukherjee, Sounak; Zhang, Zi-Huai; Oblinsky, Daniel G.; de Vries, Mitchell O.; Johnson, Brett C.; Gibson, Brant C.; Mayes, Edwin L. H.; Edmonds, Andrew M.; Palmer, Nicola; Markham, Matthew L.; Gali, Ádám; Thiering, Gergő; Dalis, Adam; Dumm, Timothy; Scholes, Gregory D.; Stacey, Alastair; Reineck, Philipp; de Leon, Nathalie P.
Source
Subject
Language
Abstract
Color centers in diamond are promising platforms for quantum technologies. Most color centers in diamond discovered thus far emit in the visible or near-infrared wavelength range, which are incompatible with long-distance fiber communication and unfavorable for imaging in biological tissues. Here, we report the experimental observation of a new color center that emits in the telecom O-band, which we observe in silicon-doped bulk single crystal diamonds and microdiamonds. Combining absorption and photoluminescence measurements, we identify a zero-phonon line at 1221 nm and phonon replicas separated by 42 meV. Using transient absorption spectroscopy, we measure an excited state lifetime of around 270 ps and observe a long-lived baseline that may arise from intersystem crossing to another spin manifold.