Open AccessOptimization of a quantum weak measurement system with its working areas
Author(s) -
Yang Xu,
Lixuan Shi,
Tian Guan,
Cuixia Guo,
Dongmei Li,
Yuxuan Yang,
Xiangnan Wang,
Luyuan Xie,
Yonghong He,
Wenyue Xie
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.021119
Subject(s) - optics , refractive index , total internal reflection , sensitivity (control systems) , weak measurement , phase (matter) , reflection (computer programming) , physics , selection (genetic algorithm) , quantum , materials science , computer science , quantum mechanics , electronic engineering , artificial intelligence , programming language , engineering
Phase-sensitive weak measurement systems have been receiving an increasing amount of attention. In this paper, we introduce a series of weak measurement working areas. By adjusting the pre-selection and post-selection states and the total phase difference between vertically polarized light and horizontally polarized light, the measurement of the weak value is amplified by several times in one system. Its applicability is verified in a label-free total internal reflection system. The original sensitivity and resolution are improved at different working areas, reaching 1.85 um/refractive index unit (RIU) and 6.808 × 10 -7 RIU, respectively.