Chiral materials appear as excellent candidates to control and manipulate the polarization of light in optical devices. In nanophotonics, the self-assembly of colloidal plasmonic nanoparticles gives rise to strong resonances in the visible range, and when such organizations are chiral, a strong chiroplasmonic effect can be observed. In the present work, we describe the optical properties of chiral artificial nanophotonic materials, Goldhelices, which are hierarchically organized by grazing incidence spraying. These Goldhelices are made by plasmonic nanoparticles (gold) grafted onto helical templates made from silica nanohelices. A comparison of oriented versus non-oriented surfaces has been performed by Mueller matrix polarimetry, showing the importance of the organization of the Goldhelices regarding their interaction with light. Moreover, mono- versus multilayer photonic films are created, and the measured optical properties are discussed and compared to simulations.

中文翻译：

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通过层次组织调整伸长的纳米物体的手性。

手性材料似乎是控制和操纵光学设备中光偏振的极佳候选材料。在纳米光子学中，胶体等离子体纳米颗粒的自组装在可见光范围内引起强烈的共振，并且当这种组织是手性的时，可以观察到强的等离子体共振效应。在目前的工作中，我们描述了手性人工纳米光子材料Goldhelices的光学特性，该材料通过掠射入射进行分层组织。这些金螺旋是通过将等离子纳米颗粒（金）接枝到由二氧化硅纳米螺旋制成的螺旋模板上而制成的。穆勒矩阵极化技术已对定向和非定向表面进行了比较，显示了金丝螺旋与光相互作用的重要性。此外，