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Excitation and Detection of Plasmon Polaritons
Šustr, Libor ; Schmidt, Eduard (referee) ; Kalousek, Radek (advisor)
The diploma thesis is aimed to excitation and detection of surface plasmon polaritons by visible light. First of all, we will briefly remind some basic principles like waves, electromagnetic wave, light on the interface and optical properties of metals. By using these principles we show presence of surface plasmon polaritons states. After the explanation of their properties there will be clearly visible reasons for aplications of the special excitationand detection methods. We will describe especially the prism coupling, periodic grating coupling and SNOM. Two last sections deal with computer simulations and experiments related to these methods. This means we can exemplify some knowledge presented in previous chapters. Results of simulations are compared with the experiment where we study the excitations of surface plasmon polaritons by periodic grating on aluminium surface.
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Localized Surface Plasmons: Principles and Application
Kvapil, Michal ; Schmidt, Eduard (referee) ; Šikola, Tomáš (advisor)
The diploma thesis deals with plasmonic nanostructures for visible eventually near-infrared region of electromagnetic spectrum. At first, there are discussed basic terms which are necessary for description of plasmonic nanostructures and their properties. Then the resonant properties of gold nanoantennas on a fused silica substrate and in proximity of nanocrystalline diamond are addressed. FDTD simulations are used for an assesment of resonant properties and local electric field enhancement of these nanostructures. Possible manufacturing methods of the antennas and techniques for the measurement of their properties are mentioned at the end of the thesis.
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Study of Properties of Surface Plasmon Polaritons on Magnetic Materials
Dvořák, Petr ; Schmidt, Eduard (referee) ; Kalousek, Radek (advisor)
The diploma thesis deals with the experimental study of surface plasmon polaritons (SPPs) on nano-structures with the Au/Co/Au multilayer. Plasmonic structures were prepared by the electron beam lithography and by the focused ion beam. A Scanning optical near-field microscope was used for detection of surface plasmon polaritons. SPPs were confirmed by the experiment with different polarizations of the illuminating light. Furthermore, differences in plasmon interference wavelengths was measured for different surface dielectric functions. Finally, the decantation of the SPPs interference image was measured in dependence on the external magnetic field.
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Plasmonic Resonant Antennas
Břínek, Lukáš ; Schmidt, Eduard (referee) ; Šikola, Tomáš (advisor)
Tato diplomová práce se zabývala plazmonickými anténami pro infračervenou oblast spektra elektromagnetického záření. K hledání zesílení pole bylo použito FDTD (Finite-Difference Time-Domain Method) simulací. Podle očekávání, byla shledána lineární závislost rezonanční vlnové délky na délce raménka platinové antény na křemíkovém povrchu. Diplomová práce se také zabývala výrobou antén pomocí fokusovaného iontového svazku (FIB) a následným měřením rezonančních vlastností pomocí mikroskopické metody FT-IR (Fourier Transform Infrared Spectroscopy). Posun rezonanční vlnové délky byla registrována pouze pro negativní antény. Nakonec se tato práce zabývala vysvětlením saturace křivky závislosti rezonanční vlnové délky na rozměru raménka platinové antény na substrátu ze SRONu (silicon-rich oxynitride).
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Thin Films of Polycrystalline Silicon
Lysáček, David ; Schmidt, Eduard (referee) ; Fejfar, Antonín (referee) ; Spousta, Jiří (advisor)
The doctoral thesis deals with the structure and properties of the polycrystalline silicon layers deposited on the silicon wafers backside. The wafers are further used for production of semiconductor devices. This work is focused on detailed description of the layers structure and study of the gettering properties and residual stress of the layers. The main goal of this work is to develop two novel technologies. The first one leads to improvement of the temperature stability of the gettering properties of the layers, and the second one solves the deposition of the layers with pre-determined residual stress. This doctoral thesis was created with the support of the company ON Semiconductor Czech Republic, Rožnov pod Radhoštěm.
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Study of Properties of Surface Plasmon Polaritons on Magnetic Materials
Dvořák, Petr ; Schmidt, Eduard (referee) ; Kalousek, Radek (advisor)
The diploma thesis deals with the experimental study of surface plasmon polaritons (SPPs) on nano-structures with the Au/Co/Au multilayer. Plasmonic structures were prepared by the electron beam lithography and by the focused ion beam. A Scanning optical near-field microscope was used for detection of surface plasmon polaritons. SPPs were confirmed by the experiment with different polarizations of the illuminating light. Furthermore, differences in plasmon interference wavelengths was measured for different surface dielectric functions. Finally, the decantation of the SPPs interference image was measured in dependence on the external magnetic field.
|
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Localized Surface Plasmons: Principles and Application
Kvapil, Michal ; Schmidt, Eduard (referee) ; Šikola, Tomáš (advisor)
The diploma thesis deals with plasmonic nanostructures for visible eventually near-infrared region of electromagnetic spectrum. At first, there are discussed basic terms which are necessary for description of plasmonic nanostructures and their properties. Then the resonant properties of gold nanoantennas on a fused silica substrate and in proximity of nanocrystalline diamond are addressed. FDTD simulations are used for an assesment of resonant properties and local electric field enhancement of these nanostructures. Possible manufacturing methods of the antennas and techniques for the measurement of their properties are mentioned at the end of the thesis.
|
|
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Excitation and Detection of Plasmon Polaritons
Šustr, Libor ; Schmidt, Eduard (referee) ; Kalousek, Radek (advisor)
The diploma thesis is aimed to excitation and detection of surface plasmon polaritons by visible light. First of all, we will briefly remind some basic principles like waves, electromagnetic wave, light on the interface and optical properties of metals. By using these principles we show presence of surface plasmon polaritons states. After the explanation of their properties there will be clearly visible reasons for aplications of the special excitationand detection methods. We will describe especially the prism coupling, periodic grating coupling and SNOM. Two last sections deal with computer simulations and experiments related to these methods. This means we can exemplify some knowledge presented in previous chapters. Results of simulations are compared with the experiment where we study the excitations of surface plasmon polaritons by periodic grating on aluminium surface.
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