Optical DC electric field sensing based on the Pockels effect using bismuth germanate crystals

2020 ◽  
Vol 59 (21) ◽  
pp. 6237
Author(s):  
Yansong Li ◽  
Li Gao ◽  
Jun Wan ◽  
Jun Liu
Keyword(s):  
Electric Field ◽  
Bismuth Germanate ◽  
Pockels Effect ◽  
Electric Field Sensing ◽  
Dc Electric Field ◽  
Field Sensing

scholarly journals OPTIMIZED RELATIVISTIC OPERATOR PERTURBATION THEORY IN SPECTROSCOPY OF MULTIELECTRON ATOM IN A DC ELECTRIC FIELD: SENSING SPECTRAL PARAMETERS

2018 ◽  
Vol 15 (4) ◽  
pp. 50-57
Author(s):  
Г. О. Кузнецова ◽  
А. В. Глушков ◽  
М. Ю. Гурська ◽  
А. А. Буяджи ◽  
В. Б. Терновський
Keyword(s):  
Perturbation Theory ◽  
Electric Field ◽  
Spectral Parameters ◽  
Electric Field Sensing ◽  
Dc Electric Field ◽  
Multielectron Atom ◽  
Field Sensing

Scanning electric field sensing for semiconductor dopant profiling

2002 ◽  
Vol 195 (1-4) ◽  
pp. 146-154 ◽  
Author(s):  
M.S. Crosser ◽  
S.H. Tessmer ◽  
Ruby N. Ghosh
Keyword(s):  
Electric Field ◽  
Dopant Profiling ◽  
Electric Field Sensing ◽  
Field Sensing

An Exploratory Study on Electric Field Sensing

2017 ◽  
pp. 247-262 ◽  
Author(s):  
Julian von Wilmsdorff ◽  
Florian Kirchbuchner ◽  
Biying Fu ◽  
Andreas Braun ◽  
Arjan Kuijper
Keyword(s):  
Electric Field ◽  
Exploratory Study ◽  
Electric Field Sensing ◽  
Field Sensing

scholarly journals A High-Resolution Terahertz Electric Field Sensor Using a Corrugated Liquid Crystal Waveguide

Crystals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 302 ◽  
Author(s):  
Lan-Lan Xu ◽  
Yi Gong ◽  
Ya-Xian Fan ◽  
Zhi-Yong Tao
Keyword(s):  
Liquid Crystals ◽  
Electric Field ◽  
Defect Mode ◽  
High Sensitivity ◽  
Electric Field Sensor ◽  
Significant Performance ◽  
Dc Electric Field ◽  
Field Sensor ◽  
Field Sensing ◽  
Very High

Liquid crystals (LCs) can always reflect variable optical properties in a broad terahertz (THz) band under external electric or magnetic fields. Based on the measurements of these varying properties, we can realize electric and magnetic field sensing with very high sensitivity. Here, we theoretically and numerically demonstrate a type of electric field sensor in the THz frequency range based on the defect mode arising in a periodically corrugated waveguide with liquid crystals. The Bragg defect structure consisting of periodically corrugated metallic walls and a defect in the middle can provide a narrow transmitted peak with controllable bandwidth, which can be used for external field sensing when it is filled with LCs. The molecular orientation of nematic LCs (E7) is not only very sensitive to the applied DC electric field but also very crucial to the effective refractive index of E7. Changing the effective index can efficiently shift the frequency of the transmitted peak in the THz spectrum. The simulated results show that the sensitivity can reach as high as 9.164 MHz/(V/m) and the smallest resolution is 0.1115 V/m. The proposed sensor and its significant performance could benefit electric field sensing and extend the applications of THz technology.

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