Improving the NV generation efficiency by electron irradiation

Bowen Zhao; Yang Dong; Shaochun Zhang; Xiangdong Chen; Wei Zhu; Fangwen Sun

doi:10.3788/COL202018.080201

Chinese Optics Letters, Volume. 18, Issue 8, 080201(2020)

Improving the NV generation efficiency by electron irradiation

Bowen Zhao^1,2, Yang Dong^1,2、*, Shaochun Zhang^1,2, Xiangdong Chen^1,2, Wei Zhu³, and Fangwen Sun^1,2

Author Affiliations

¹CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China

²CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

³Hefei National Laboratory for Physical Science at Microscale, Department of Physics, University of Science and Technology of China, Hefei 230026, China

show less

Figures & Tables(9)

Fig. 1. Magnetic sensing system.

Download full size

View in Article

Fig. 2. PL saturation curves under different electron beam irradiation doses.

Download full size

View in Article

Fig. 3. PL counts with different electron beam irradiation doses and excitation intensities.

Download full size

View in Article

Fig. 4. Spectra of NV color centers with different electron beam irradiation doses.

Download full size

View in Article

Fig. 5. ODMR contrast of the samples with different electron beam irradiation doses.

Download full size

View in Article

Fig. 6. (a) XRD intensity of front side and (b) XRD rocking curves on both sides.

Download full size

View in Article

Table 1. PL Saturations of Different Samples

View table

View in Article

Table 1. PL Saturations of Different Samples

Electron Dose ( $\times 10^{16} {cm}^{- 2})$	$I_{sat}$ ( $\times 10^{8} s^{- 1})$	$α$	Enhancement
0	2.07(0.07)	0.03(1)	1.00
1	2.94(0.15)	0.11(1)	1.42
2	8.44(0.51)	0.21(1)	4.01
4	18.30(1.43)	0.46(2)	8.84
8	38.06(2.18)	0.80(4)	18.39
16	44.49(3.77)	0.99(6)	21.49

Table 2. Decoherence Times for Different Samples
View table
View in Article
Table 2. Decoherence Times for Different Samples
Electron Dose ( $\times 10^{16} {cm}^{- 2})$ $T_{2}^{*}$ (ns) $T_{2}$ ( $μ s$ ) $T_{1}$ (ms)
0 — 80(4) —
1 310(20) 75(2) 2.6(2)
2 458(21) 73(2) 2.5(2)
4 313(53) 125(5) 3.7(4)
8 447(23) 79(3) 3.5(3)
16 377(60) 77(4) 2.3(4)

Table 3. Magnetic Field Measurement Sensitivity for DC and AC Magnetic Fields

View table

View in Article

Table 3. Magnetic Field Measurement Sensitivity for DC and AC Magnetic Fields

Electron Dose ( $\times 10^{16} {cm}^{- 2}$ )	C(%)	$n$	$η_{dc}$ ( $nT / {Hz}^{1 / 2}$ )	$η_{ac}$ ( $nT / {Hz}^{1 / 2}$ )
0	4.7(1)	49.7(2.5)	—	7.59(36)
1	5.5(1)	94.8(4.7)	38.12(1.91)	3.85(16)
2	4.5(1)	229.8(11.5)	24.61(1.13)	3.06(12)
4	3.3(2)	402.9(20.1)	30.67(2.85)	2.41(14)
8	2.8(1)	822.2(41.1)	21.18(1.02)	2.50(14)
16	1.6(1)	929.9(46.5)	38.67(3.09)	4.25(27)

Tools

Get Citation

Copy Citation Text

Bowen Zhao, Yang Dong, Shaochun Zhang, Xiangdong Chen, Wei Zhu, Fangwen Sun, "Improving the NV generation efficiency by electron irradiation," Chin.Opt.Lett. 18, 080201 (2020)

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites