Signatures of material and optical chirality: Origins and measures
Signatures of material and optical chirality: Origins and measures
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DOI：
10.1016/j.cplett.2015.02.051
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发表时间：
2015-04-17
影响因子：
2.8
通讯作者：
Andrews, David L.
中科院分区：
文献类型：
--
作者：
Bradshaw, David S.;Leeder, Jamie M.;Andrews, David L.
材料和光的手性在广泛的科学学科中具有持久的兴趣。本文讨论了当前和新出现的问题，有关分子和光学手性，也包括一些重要的发展手征超材料。对物质或光的手性进行量化会导致关于最合适的措施的问题，例如特定手性发色团的螺旋度参数和光手性的技术措施。光学螺旋性和手征性密度取决于光束中左手光子和右手光子的数量之间的差异。在圆偏振发光方面，将斯托克斯参数引入手性分子的自发辐射引起了人们的广泛关注。现代光谱技术通常基于与右旋光相比，左旋圆偏振光产生的不同响应。这种差异可以作为手性分子分离的基础，有希望的新的应用途径。(C)2015作者由爱思唯尔公司出版
Chirality in materials and light is of abiding interest across a broad range of scientific disciplines. This article discusses present and emerging issues in relation to molecular and optical chirality, also including some important developments in chiral metamaterials. Quantifying the chirality of matter or light leads to issues concerning the most appropriate measures, such as a helicity parameter for specific chiral chromophores and technical measures of light chirality. An optical helicity and chirality density depend on a difference between the numbers of left- and right-handed photons in a beam. In connection with circularly polarised luminescence, adoption of the Stokes parameter to spontaneous emission from chiral molecules invites critical attention. Modern spectroscopic techniques are often based on the different response arising from left-handed circularly polarised light compared to right-handed light. This dissimilarity can be exploited as a foundation for the separation of chiral molecules, promising new avenues of application. (C) 2015 The Authors. Published by Elsevier B.V.