Optical Properties of Plasmonic Nanostructures
A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".
Deadline for manuscript submissions: 10 October 2025 | Viewed by 566
Special Issue Editor
Interests: plasmonics and metamaterials; metal coatings and metal–dielectric composite materials; ellipsometry; optical properties of thin films, multilayered coatings and photonic crystals; infrared and Raman spectroscopy
Special Issue Information
Dear Colleagues,
Due to their unique properties, plasmonic nanostructures have found applications in a wide range of socially important modern technologies, such as energy conversion, environmental protection and remediation, human health, and safety. All these applications are based on the interaction of external radiation with frequencies falling in the optical range of the electromagnetic spectrum, with free electrons and/or photoexcited electrons caused by interband transitions in structures with submicron dimensions. These properties are tightly related to the complex permittivity function of the materials making up the nanostructures, which has a key role in determining the spectral range of their application by determining their polarizability, absorption, and emission spectra.
This Special Issue aims to create a comprehensive platform of publications on all aspects of the optical response characterization of plasmonic nanostructures, including the determination of complex permittivity function, theoretical modelling, and synthesis methods.
The research areas of the present Special Issue are not limited to the optical properties of plasmonic nanostructures from noble metals alone but also cover research on plasmonic active materials suitable for UV and IR spectral ranges, such as post-transition metals and their alloys, transition metal chalcogenides, and conductive oxides and nitrides (such as GZO, TiN, etc.).
Cutting-edge papers, including theoretical modelling and advanced methods for the size, shape, and optical response tailoring of nanoparticles and nanostructures, are welcome. Since the size of the nanostructures is much smaller than the wavelength and is commensurate to the free electron path, this, together with the shape, can significantly influence the electronic states in the nanostructures and, respectively, their complex permittivity response. By controlling the size, shape, and composition of nanostructures or nanoparticles, the frequency range of plasmon activity can be adjusted and coincide with the working spectral interval; as a result, the efficiency of the devices in which they are used can be significantly increased.
In this Special Issue, original research articles, perspective papers and reviews on current advancements in plasmonic nanostructures are welcome.
Dr. Rosen N. Todorov
Guest Editor
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Keywords
- noble metal nanostructures
- the plasmonic application of intermetallic alloys and nanoparticles
- UV plasmonics
- epsilon-near-zero (ENZ) materials
- conductive oxides and nitrides
- interband plasmonics and transition metal chalcogenides
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