Optical Sensing of Broadband RF Magnetic Field Using a Micrometer-Sized Diamond

Hu, Zhen-Zhong; Yang, Bo; Dong, Mingming; Liu, Ying; Wang, Yongjin; Du, Guanxiang

doi:10.1109/tmag.2018.2886162

Cited by 7 publications

(4 citation statements)

References 22 publications

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“…3 Recently, quantum near-field probes using NV center in diamonds 4 have been demonstrated, which has an unprecedented spatial resolution of micron and brings little disturbance to the chip under test. 5 In the previous work, the NV center-based method for microwave field imaging has been applied to several devices such as circular loop, 6 spiral antenna, 7 patch antenna, 8 CPW, 9 and amplifier chip. 10 One of them 6 characterizes the magnetic field sensitivity of the current loop antenna and uses a Thorlab NEL01 absorber to stabilize the laser and reduce the laser noise, which is a completely different method of noise reduction from our work.…”

Section: Introductionmentioning

confidence: 99%

“…5 In the previous work, the NV center-based method for microwave field imaging has been applied to several devices such as circular loop, 6 spiral antenna, 7 patch antenna, 8 CPW, 9 and amplifier chip. 10 One of them 6 characterizes the magnetic field sensitivity of the current loop antenna and uses a Thorlab NEL01 absorber to stabilize the laser and reduce the laser noise, which is a completely different method of noise reduction from our work. The other 7 is microwave near-field imaging of the NV center with a CCD camera, which has higher time efficiency and stability because it does not have any moving parts, but the measurement method is at a certain distance from the measured object and does not have the high resolution of the tapered fiber probe used in this paper.…”

Section: Introductionmentioning

confidence: 99%

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Application of single photon counter module in weak signal detection for RF chip scanning using a quantum near field probe

Bai

Yin

et al. 2023

Micro & Optical Tech Letters

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Diamond based quantum sensing for on‐chip electromagnetic field imaging is an emerging field. While smaller diamond probes offer higher spatial resolution, their lower fluorescence intensity poses a challenge for the traditional Avalanche Photo Diode. In this work, we propose a tapered fiber diamond probe containing Nitrogen‐vacancy center and utilize a single photon counter module as the detector. A time domain differential pulse sequence is introduced to suppress noise caused by laser intensity fluctuation. By analyzing the relationship between the signal‐to‐noise ratio (SNR) and parameters of differential pulse sequence, we derived the formula of SNR and the basic cycle (M $M$), and obtained the optimal SNR in the same measurement time through trade‐off between two different kinds of noise. The technique was applied to a waveguide microstrip filter chip, accurately imaging the current density distribution. Our results have potential applications in on‐chip testing and failure analysis.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of single photon counter module in weak signal detection for RF chip scanning using a quantum near field probe

Bai

Yin

et al. 2023

Micro & Optical Tech Letters

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“…Magnetic field sensing and measurement are of great significance in the fields of navigation, 1 magnetic anomaly monitoring, 2,3 nondestructive, imaging, 4‐8 biomedical, 9 and so on. Recently, due to the unique advantages of high sensitivity, nondestructive and stable quantum state, spin coherence time, initialized and manipulable spin‐state, the diamond NV centers have been widely used in quantum magnetic field sensors 10‐13 .…”

Section: Introductionmentioning

confidence: 99%

A diamond NV centers‐based magnetic field sensor using a high‐Q waveguide bandpass filter

Wang

Gao

et al. 2022

Int J RF Mic Comp-Aid Eng

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In diamond nitrogen-vacancy (NV) magnetic field sensors, microwave delivery and irradiation with efficient, uniform, and wide dynamic range are necessary to achieve more accurate measurement and higher sensitivity. Here, we report on the development of a triple-mode broadband waveguide bandpass filter (BPF), which uses a high-Q metallic cavity to transfer the microwave and excite the diamond NV spin ensembles. This BPF provides a more efficient, low-loss, uniform, and broadband microwave signal, as well as a closed space for the NV-quantum sensor. The developed BPF exhibits a large fractional bandwidth (FBW) of 34.8% with a center frequency of 2.87 GHz, and this leads to improve the measurable static magnetic field range up to 5.36 Â 10 À2 T.Experimental results show that the sensitivity is improved to 14.67 μT/Hz 1/2 compared to the patch antenna of 188.49 μT/Hz 1/2 , that is usually used in the conventional diamond NV-based quantum sensors.

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“…Since RF sensors using NV centers enable potentially high-spatial resolution imaging, they have been actively studied recently. [2][3][4][5][6][7][8] By using diamond NV centers, the external electromagnetic field distribution is transferred to NV electron spin states using quantum sensing techniques. Then NV electron spin states are read from photoluminescence from NV centers.…”

mentioning

confidence: 99%

Imaging of high-frequency electromagnetic field by multipulse quantum sensing using nitrogen vacancy centers in diamond

Nomura,

Watanabe,

Kashiwaya

2023

Appl. Phys. Express

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Near-field enhancement of the microwave field is applied for imaging high frequency radio field using a diamond chip with a 15N-doped isotopically purified diamond layer grown by microwave plasma assisted chemical vapor deposition. A Short π pulse length enables us to utilize a multipulse dynamic decoupling method for detection of radio frequency field at 19.23 MHz. An extraordinary frequency resolution of the external magnetic field detection is achieved by using amplitude-shaped control pulses. Our method opens up the possibility for high-frequency-resolution RF imaging at μm spatial resolution using nitrogen vacancy centers in diamond.

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Optical Sensing of Broadband RF Magnetic Field Using a Micrometer-Sized Diamond

Cited by 7 publications

References 22 publications

Application of single photon counter module in weak signal detection for RF chip scanning using a quantum near field probe

Application of single photon counter module in weak signal detection for RF chip scanning using a quantum near field probe

A diamond NV centers‐based magnetic field sensor using a high‐Q waveguide bandpass filter

Imaging of high-frequency electromagnetic field by multipulse quantum sensing using nitrogen vacancy centers in diamond

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