Table 1 The results of comparing our defects with reported spin defects

From: Coherent control of an ultrabright single spin in hexagonal boron nitride at room temperature

 

g(2)(0)

Saturated counts

ZPL

DW factor

DOP

Coherent control

T1 (room/cryogenic)

T2 (room/cryogenic)

V\({}_{{{{{{{{\rm{B}}}}}}}}}^{-}\) (ensemble)

–

–

–

–

–

Yes

18 μs/12.5 ms31

2 μs/2 μs31

Mendelson et al.28 (ensemble)

–

–

585 nm

–

–

–

– / –

– / –

Stern et al.29

0.34

3.8 × 104 s−1

~580 nm

–

–

–

– / –

– / –

Chejanovsky et al.27

0.59

–

720 nm

–

–

–

– / 17 μs

– / –

 

0.22

–

760 nm

–

–

–

– / 13 μs

– / –

Guo et al.a

0.25

\(\begin{array}{c}{{3.7}}\times {{{10}}}^{6}\,{{{{{{\rm{s}}}}}}}^{-{{1}}}\\ {{2.5}}\times {{{10}}}^{{{7}}}\,{{{{{{{{\rm{s}}}}}}}}}^{-1}\\ ({{{{{{{\rm{corrected}}}}}}}})\end{array}\)

~540 nm

0.8

0.8

Yes

16.17 μs/not detected

2.45 μs/not detected

  1. g(2)(0) is the second-order autocorrelation measurement, ZPL is zero-phonon line, DOP is the degree of polarization.
  2. aResults in current work.