Fig. 1. Schematic diagram for identifying amino acid species based on quantum weak measurement

Fig. 2. Identification of amino acid species based on weak measurement system. (a) Relationship between amplified spin Hall shift and optical rotation angle; (b) variation of amplified spin Hall shift with mass concentration of amino acid sample

Fig. 3. Influence of incident angle on resolution of weak measurement system. (a) Variation of amplified spin Hall shift with incident angle for amino acid samples; (b) relationship between amplified spin Hall shift and optical rotation angle at different incident angles

Fig. 4. Law of improving resolution of weak measurement system by designing BK7-medium structure.（a） Pseudo-color images of amplified spin Hall shift as a function of real and imaginary parts of permittivity； relationship of amplified spin Hall shift and optical rotation angle with （b） different thickness of medium and different （c） real part and （d） imaginary part of permittivity