scholarly journals Optimization of a quantum weak measurement system with its working areas

2018 ◽  
Vol 26 (16) ◽  
pp. 21119 ◽  
Author(s):  
Yang Xu ◽  
Lixuan Shi ◽  
Tian Guan ◽  
Cuixia Guo ◽  
Dongmei Li ◽  
...  
Keyword(s):  
Measurement System ◽  
Weak Measurement

Multifunctional weak measurement system that can measure the refractive index and optical rotation of a solution

2019 ◽  
Vol 114 (18) ◽  
pp. 181901 ◽  
Author(s):  
Yang Xu ◽  
Lixuan Shi ◽  
Tian Guan ◽  
Suyi Zhong ◽  
Xuesi Zhou ◽  
...  
Keyword(s):  
Refractive Index ◽  
Measurement System ◽  
Optical Rotation ◽  
Weak Measurement

Optimization of a quantum weak measurement system with digital filtering technology

2018 ◽  
Vol 57 (27) ◽  
pp. 7956 ◽  
Author(s):  
Yang Xu ◽  
Lixuan Shi ◽  
Tian Guan ◽  
Dongmei Li ◽  
Yuxuan Yang ◽  
...  
Keyword(s):  
Measurement System ◽  
Digital Filtering ◽  
Weak Measurement

scholarly journals Rapid Separation of Enantiomeric Impurities in Chiral Molecules by a Self-Referential Weak Measurement System

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3788 ◽  
Author(s):  
Yang Xu ◽  
Lixuan Shi ◽  
Tian Guan ◽  
Suyi Zhong ◽  
Xuesi Zhou ◽  
...  
Keyword(s):  
Measurement System ◽  
Optical Rotation ◽  
Polarization State ◽  
Optical Resolution ◽  
Weak Measurement ◽  
Quarter Wave Plate ◽  
Chiral Molecules ◽  
Rapid Separation ◽  
Detection Scheme ◽  
Central Wavelength

We propose a self-referential fast detection scheme for a frequency domain weak measurement system for the detection of enantiomeric impurities in chiral molecules. In a transmissive weak measurement system, the optical rotation (OR) is used to modify the pre-selected polarization state and the post-selection polarization state. We obtained the sum and difference of the optical rotations produced by the sample and the standard by rotating the quarter wave plate in the system. Then, we estimate the ratio of chiral molecules to enantiomeric impurities using the ratio of the central wavelength shifts caused by the addition and subtraction states described above. In this paper, our system has an optical resolution of 1.88 × 10−5°. At the same time, we completed the detection of the ratio of the two substances in the mixture of L-proline and D-proline in different proportions, which proved that our system can quickly detect the content of enantiomeric impurities in chiral molecules.

scholarly journals Spectrum Intensity Ratio Detection for Frequency Domain Weak Measurement System

2020 ◽  
Vol 12 (4) ◽  
pp. 1-12
Author(s):  
Yuxuan Yang ◽  
Yang Xu ◽  
Tian Guan ◽  
Lixuan Shi ◽  
Jinyu Li ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Measurement System ◽  
Intensity Ratio ◽  
Weak Measurement ◽  
Spectrum Intensity ◽  
Ratio Detection

scholarly journals A differential weak measurement system based on Sagnac interferometer for self-referencing biomolecule detection

2017 ◽  
Vol 50 (49) ◽  
pp. 49LT01 ◽  
Author(s):  
Dongmei Li ◽  
Tian Guan ◽  
Yonghong He ◽  
Qinghua He ◽  
Yilong Zhang ◽  
...  
Keyword(s):  
Measurement System ◽  
Weak Measurement ◽  
Sagnac Interferometer ◽  
Biomolecule Detection

scholarly journals A Differential Detection Method Based on a Linear Weak Measurement System

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2473
Author(s):  
Nian Xiong ◽  
Tian Guan ◽  
Yang Xu ◽  
Lixuan Shi ◽  
Suyi Zhong ◽  
...  
Keyword(s):  
Measurement System ◽  
Total Internal Reflection ◽  
High Stability ◽  
Detection Method ◽  
Weak Measurement ◽  
Internal Reflection ◽  
Differential Detection ◽  
Label Free ◽  
Label Free Detection ◽  
Linear Differential

Self-reference detection is necessary and important to a biosensor. The linear weak measurement system based on total internal reflection has attracted widespread attention due to its high stability, label-free detection, and easy integration. In this paper, we propose a differential detection method based on the linear total internal reflection weak measurement system. We introduce the half-wave plate (HWP) to convert the H light and the V light to each other, thereby obtaining the difference in phase change of the optical path before and after the HWP. Experiments show that the system can not only achieve differential detection, but also has high stability. The linear differential weak measurement system proposed in this paper not only provides a new differential measurement method for real-time biosensors, but also enriches the types of weak measurement sensors.

Optical weak measurement system with common path implementation for label-free biomolecule sensing

2016 ◽  
Vol 41 (22) ◽  
pp. 5409 ◽  
Author(s):  
Yilong Zhang ◽  
Dongmei Li ◽  
Yonghong He ◽  
Zhiyuan Shen ◽  
Qinghua He
Keyword(s):  
Measurement System ◽  
Weak Measurement ◽  
Label Free ◽  
Common Path ◽  
Biomolecule Sensing

scholarly journals Optimization of the weak measurement system by determining the optimal total phase difference

2021 ◽  
pp. 1-1
Author(s):  
Yang Xu ◽  
Lixuan Shi ◽  
Le Liu ◽  
Wenyue Xie ◽  
Tian Guan ◽  
...  
Keyword(s):  
Phase Difference ◽  
Measurement System ◽  
Weak Measurement ◽  
Total Phase
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