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"Bertolotti, Mario"
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Evanescent Waves in Optics
This monograph provides an introductory discussion of evanescent waves and plasmons, describes their properties and uses, and shows how they are fundamental when operating with nanoscale optics.Far field optics is not suitable for the design, description, and operation of devices at this nanometre scale.
eBook
High Quality Factor Silicon Membrane Metasurface for Intensity-Based Refractive Index Sensing
We propose a new sensing device based on all-optical nano-objects placed in a suspended periodic array. We demonstrate that the intensity-based sensing mechanism can measure environment refractive index change of the order of 1.8×10−6, which is close to record efficiencies in plasmonic devices.
Journal Article
Metallic oriented nanowires films for infrared radiation manipulation
We developed a numerical method to model the infrared spectral properties of metal nanowires on a flat substrate. Homogenization techniques and the transfer matrix method for birefringent layered materials are merged together so as to obtain a simple but effective tool for tailoring and optimizing the infrared properties of the resulting system. Different in-plane orientations can be investigated, ranging from randomly to perfectly aligned nanowires. Furthermore, the model allows the introduction of an off-plane tilt of the nanowires axes, thus increasing designing options. Possible applications such as broad band infrared polarizers, polarizing beam splitter and polarization rotators are discussed.
Journal Article