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Reversible Circular Dichroism Induced by Energy Losses without Changing Chirality of Structure
Annalen Der Physik ( IF 2.2 ) Pub Date : 2020-05-07 , DOI: 10.1002/andp.201900539 Junchen Deng 1 , Tiankun Wang 2 , Sha Shiong Ng 2 , Guangqiao Liu 1
Annalen Der Physik ( IF 2.2 ) Pub Date : 2020-05-07 , DOI: 10.1002/andp.201900539 Junchen Deng 1 , Tiankun Wang 2 , Sha Shiong Ng 2 , Guangqiao Liu 1
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Tunable circular dichroism (CD) is widely used in biology signal detection and chemical analysis. Researchers usually tune CD by changing the chirality and symmetry of nanostructures either directly or indirectly. Changes to a planar nanostructure's chirality are resisted by its structural reciprocity, which also constrains its CD tuning. However, the distribution of finite non‐radiative (ohmic) losses on a planar nanostructure will not be constrained by the reciprocity of structure. Here, a nanostructure is designed to tune the intensity of energy losses rather than change the chirality and symmetry of the whole structure. The results show that not only are the position and intensity of CD affected, but also the sign of the CD signal changes. These methods and results can help in utilizing the new approach to tune the modes and sign of a CD signal.
中文翻译：
能量损失不改变结构手性引起的可逆圆二色性
可调圆二色性（CD）广泛用于生物学信号检测和化学分析。研究人员通常通过直接或间接改变纳米结构的手性和对称性来调节CD。平面纳米结构手性的变化受到其结构互易性的抵制，这也限制了其CD调谐。但是，平面纳米结构上有限的非辐射（欧姆）损耗的分布不会受到结构互易性的限制。在这里，纳米结构被设计用来调节能量损失的强度，而不是改变整个结构的手性和对称性。结果表明，不仅影响CD的位置和强度，而且影响CD信号的符号。
更新日期：2020-05-07
中文翻译：
能量损失不改变结构手性引起的可逆圆二色性
可调圆二色性（CD）广泛用于生物学信号检测和化学分析。研究人员通常通过直接或间接改变纳米结构的手性和对称性来调节CD。平面纳米结构手性的变化受到其结构互易性的抵制，这也限制了其CD调谐。但是，平面纳米结构上有限的非辐射（欧姆）损耗的分布不会受到结构互易性的限制。在这里，纳米结构被设计用来调节能量损失的强度，而不是改变整个结构的手性和对称性。结果表明，不仅影响CD的位置和强度，而且影响CD信号的符号。
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