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.
Original language | English (US) |
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Pages (from-to) | 2557-2562 |
Number of pages | 6 |
Journal | Nano Letters |
Volume | 23 |
Issue number | 7 |
DOIs | |
State | Published - Apr 12 2023 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Mechanical Engineering
- Bioengineering
- General Materials Science
Keywords
- O-band
- color center
- diamond
- optical spectroscopy
- telecom emitter