Nanoscale electric field sensing using a levitated nano-resonator with net charge

Shaocong Zhu; Zhenhai Fu; Xiaowen Gao; Cuihong Li; Zhiming Chen; Yingying Wang; Xingfan Chen; Huizhu Hu

doi:10.1364/PRJ.475793

Journals >Photonics Research >Volume 11 >Issue 2 >Page 279 > Article

Photonics Research
Vol. 11, Issue 2, 279 (2023)

Nanoscale electric field sensing using a levitated nano-resonator with net charge | Editors' Pick

Shaocong Zhu¹, Zhenhai Fu^1、3、*, Xiaowen Gao^1、4、*, Cuihong Li¹, Zhiming Chen¹, Yingying Wang¹, Xingfan Chen², and Huizhu Hu^{1、2、5、*}

Author Affiliations

¹Quantum Sensing Center, Zhejiang Lab, Hangzhou 310000, China

²State Key Laboratory of Modern Optical Instruments, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China

³e-mail: fuzhenhai@zju.edu.cn

⁴e-mail: gaoxw@zhejianglab.com

⁵e-mail: huhuizhu2000@zju.edu.cn

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DOI: 10.1364/PRJ.475793 Cite this Article Set citation alerts

Shaocong Zhu, Zhenhai Fu, Xiaowen Gao, Cuihong Li, Zhiming Chen, Yingying Wang, Xingfan Chen, Huizhu Hu. Nanoscale electric field sensing using a levitated nano-resonator with net charge[J]. Photonics Research, 2023, 11(2): 279 Copy Citation Text

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Abstract

The nanomechanical resonator based on a levitated particle exhibits unique advantages in the development of ultrasensitive electric field detectors. We demonstrate a three-dimensional, high-sensitivity electric field measurement technology using the optically levitated nanoparticle with known net charge. By scanning the relative position between nanoparticle and parallel electrodes, the three-dimensional electric field distribution with microscale resolution is obtained. The measured noise equivalent electric intensity with charges of

100 e

reaches the order of

1 μV \cdot {cm}^{- 1} \cdot {Hz}^{- 1 / 2}

1.4 \times 10^{- 7} mbar

. Linearity analysis near resonance frequency shows a measured linear range over 91 dB limited only by the maximum output voltage of the driving equipment. This work may provide an avenue for developing a high-sensitivity electric field sensor based on an optically levitated nano-resonator.