Abstract
Chirality, describing an asymmetric property that an object cannot be superimposed onto its mirror image, naturally exists from the macro to atomic scale. Recently, optical activity has been imposed onto plasmon, paving the way for utilizing surface plasmon resonance to develop chirality-related applications in pharmaceutical and agriculture production, food quality control, disease diagnosis and medical treatment, as well as environment protection and sustainable development. It is a fundamental prerequisite to understand optical principle and engineer optical activity, which is still in its infancy. In this talk, we will report on a flexible tailoring of optical activity in the UV and visible regime. Optical activity stems from the helicity of plasmonic nanospirals that are generated by glancing angle deposition (GLAD), and the flexible optical engineering is ascribed to the facile control over helical structures using GLAD.
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