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Estimation of optical rotation of chiral molecules with weak measurements

机译:弱测量估算手性分子的旋光度

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From its beginning, the measurement of optical rotation (OR) is crucial for the analysis of chiral molecules in many fields. However, the precision measurement of a weak OR signal with conventional setup remains elusive. In this Letter, we experimentally propose a precision method to determine the OR of glucose and fructose based on weak measurements. By using the spin Hall effect of light (SHEL) as a probe, a nonlinear weak measurements model is established that is applicable beyond the Aharonov-Albert-Vaidman (AAV) limit. Due to the high sensitivity of weak measurements amplification with respect to the OR, a tremendous variation of the amplified beam displacement of the SHEL is observed, while the concentration of glucose and fructose is slightly changed. (C) 2016 Optical Society of America
机译:从一开始,旋光度(OR)的测量对于许多领域中的手性分子分析至关重要。但是,使用常规设置对微弱或信号的精度测量仍然难以实现。在这封信中,我们实验性地提出了一种基于微弱测量值确定葡萄糖和果糖OR的精密方法。通过使用光的自旋霍尔效应(SHEL)作为探针,建立了非线性弱测量模型,该模型适用于超出Aharonov-Albert-Vaidman(AAV)限制的范围。由于弱测量扩增相对于OR的高灵敏度,因此观察到SHEL的扩增束位移发生了巨大变化,而葡萄糖和果糖的浓度则发生了轻微变化。 (C)2016美国眼镜学会

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