Modelling of Plasmonic and Graphene Nanodevices
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Beschreibung
The thesis covers a broad range of electronic, optical and opto-electronic devices and various predicted physical effects. In particular, it examines the quantum interference transistor effect in graphene nanorings; tunable spin-filtering and spin-dependent negative differential resistance in composite heterostructures based on graphene and ferromagnetic materials; optical and novel electro-optical bistability and hysteresis in compound systems; and the real-time control of radiation patterns of optical nanoantennas. The direction of the main radiation lobe of a regular plasmonic array can be changed abruptly by small variations in external control parameters. This optical effect, apart from its relevance for applications, is a revealing example of the Umklapp process and, thus, is a visual manifestation of one of the most fundamental laws of solid state physics: the conservation of the quasi-momentum to within a reciprocal lattice vector. The thesis analyzes not only results for particular device designs but also a variety of advanced numerical methods which are extended by the author and described in detail. These methods can be used as a sound starting point for further research.
The thesis covers a broad range of electronic, optical and opto-electronic devices and various predicted physical effects. In particular, it examines the quantum interference transistor effect in graphene nanorings; tunable spin-filtering and spin-dependent negative differential resistance in composite heterostructures based on graphene and ferromagnetic materials; optical and novel electro-optical bistability and hysteresis in compound systems and the real-time control of radiation patterns of optical nanoantennas. The direction of the main radiation lobe of a regular plasmonic array can be changed abruptly by small variations in external control parameters. This optical effect, apart from its relevance for applications, is a revealing example of the Umklapp process and, thus, is a visual manifestation of one of the most fundamental laws of solid state physics: the conservation of the quasi-momentum to within a reciprocal lattice vector. The thesis analyzes not only results for particular device designs but also a variety of advanced numerical methods which are extended by the author and described in detail. These methods can be used as a sound starting point for further research.
Nominated as an outstanding Ph. D. thesis by the Universidad Complutense de Madrid, Spain Provides a thorough general introduction suitable for newcomers, including key references Contains an appendix detailing the numerical implementation of the required algorithms Includes supplementary material: sn.pub/extras
Autor*in
Javier Munárriz Arrieta
Themen in »Modelling of Plasmonic and Graphene Nanodevices«
Electro-optical Nanodevices Graphene Nanorings Graphene Nanostructures Graphene Spintronic Devices Graphene Superlattices Optical Bistability at the Nanoscale Optical Nanoantennae Plasmonic Devices Quantum Interference Device Quantum Interference Transistor Effect Single Electron Transistors