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Imaging the magnetic field of plasmonic antennas based on Babinet's principle
Špičáková, Tereza ; Horák, Michal (referee) ; Křápek, Vlastimil (advisor)
This thesis concerns plasmonic antennas and the electromagnetic field of surface plasmon polaritons. In the first chapter we look at the theory of the electromagnetic field and the electromagnetic wave associated with the interface between metals and dielectric materials and we explain Babinet’s principle. In the next part of the thesis we describe the process of fabrication of plasmonic antennas using Kaufman ion source and focused ion beam. We continue wuth the theoretical description of the electron energy loss spectroscopy and the application of this method for characterizing the optical response of these structures. In the last part we introduce the principles of processing the measured data and the conclusions drawen frome this data. Next we will analyze the limits of the validity of Babinet’s principle and using this principle, we will image the magnetic field of the antennas. Finally, we discuss the possibilities of describing this problem with computer simulation.
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Electron microscopy and spectroscopy in plasmonics
Horák, Michal ; Krenn, Joachim (referee) ; Shegai, Timur (referee) ; Šikola, Tomáš (advisor)
Tato práce se zabývá mikroskopickými technikami využívajícími elektronový a iontový svazek pro přípravu a charakterizaci plazmonických nanostruktur. Analytická elektronová mikroskopie je představena se zaměřením na aplikace v oblasti plazmoniky. Důraz je kladen na spektroskopii energiových ztrát elektronů (EELS) a katodoluminiscenci. Dále je diskutována výroba plazmonických vzorků pro transmisní elektronovou mikroskopii, přičemž je kladen důraz na litografii iontovým svazkem a na přípravu vzorků za použití chemicky syntetizovaných částic ve vodném roztoku. Hlavní výzkumné výsledky práce jsou rozděleny do čtyř částí. První část se věnuje komparativní studii plazmonických antén vyrobených elektronovou a iontovou litografií. Přestože obě techniky jsou vhodné pro výrobu plazmonických antén, elektronová litografie by měla být upřednostňována před iontovou litografií díky lepší kvalitě výsledných antén a jejich silnější plazmonické odezvě. Antény vyrobené iontovou litografií mají neostré okraje, vykazují výrazné kolísání tloušťky a jsou také silně kontaminovány nejen organickými kontaminanty, ale také rezidui po iontové litografii včetně implantovaných iontů z iontového svazku a atomů titanové adhezivní vrstvy. Ve druhé části je zkoumán Babinetův princip komplementarity pro plazmonické nanostruktury na sérii zlatých diskových antén a komplementárních apertur ve zlaté vrstvě s různými průměry. Komplementarita je potvrzena pro základní plazmonické vlastnosti jako rezonanční energie, ale rozdíly způsobené omezenou platností Babinetova principu jsou patrné například pro prostorové rozložení blízkého pole plazmonových polaritonů. Třetí část shrnuje studii nanostruktur s funkčními vlastnostmi souvisejícími s lokálním zesílením elektrického a magnetického pole. Obzvlášť silné lokální zesílení pole vykazují plazmonické antény tvaru bowtie a diabolo, a to jak ve formě částic, tak ve formě apertur. Naše studie umožnila identifikovat několik módů lokalizovaných povrchových plazmonů v těchto anténách a charakterizovat jejich vlastnosti včetně energie módu, rozložení elektrické a magnetické složky blízkého pole módu, a kvalitativní rozložení uzlů náboje a proudu souvisejících oscilací elektronového plynu. Dále jsme studovali laditelnost energií módů v blízké infračervené a viditelné spektrální oblasti a zaměřili jsme se na Babinetovskou komplementaritu mezi přímými a invertovanými anténami. Poslední část je zaměřena na stříbrný amalgám, nový a velmi perspektivní plazmonický materiál. Změnou velikosti stříbrných amalgámových nanostruktur může být jejich plazmonová rezonance laděna od oblasti ultrafialového záření přes celou viditelnou až po infračervenou oblast. Jelikož stříbrný amalgám je dobře prozkoumán v oblasti elektrochemie, stříbrné amalgámové nanočástice otevírají možnost kombinovat plazmoniku a elektrochemii dohromady.
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Microscopic Simulation of the junction Malá Amerika
Horák, Michal ; Mikolášek, Igor (referee) ; Všetečka, Martin (advisor)
This bachelor thesis deals with the modeling of traffic flow in several variants of the transport network. Variants are modeled in Aimsun. Current status data was obtained by field observation. In the created models, the traffic flow of both current and future traffic intensities is simulated. Based on the outputs of the simulated operation, the variants are assessed. The proposed variants are compared and the most suitable arrangement chosen.
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Creating Metrics and Reports to Support Business Process Management of the Order
Kuklica, Roman ; Horák, Michal (referee) ; Jurová, Marie (advisor)
The bachelor thesis is focused on the process of orders in XY, s.r.o., which deals with the production of electrotechnical products. The theoretical part of the thesis contains an explanation of the terms related to the given issue. The analytical part of the thesis is devoted to the analysis of the current state of the duration of individual order processes for the past year. Subsequently, there are suggestions of the course of the order procedures, with the possibility of creating a system of metrics and reports, to monitor the performance of the processes of orders in the company.
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Increasing the level of automation of the company's production processes
Horák, Michal ; Knoflíček, Radek (referee) ; Blecha, Radim (advisor)
The aim of this work is to create a methodology for creating a strategy to increase the level of automation of manufacturing process. Based on the customer´s requirements, management of manufacturing company, the concept of methodology was developed. The research and design of the necessary tools and procedures to evaluate the feasibility of automation were subsequently carried out. Based on the outputs from the feasibility analysis, rules for the formulation of the automation strategy were established. The method was subsequently applied to the process of the manufacturing company for which an analysis of the feasibility of automation was carried out. Subsequently, recommendations were made for further steps to increase the level of automation, thus proposing a strategy for the company. The methodology created is applicable to companies with discrete batch production that do not have defined the automation strategy yet.
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3D machining module
Horák, Michal ; Omes, Jiří (referee) ; Dokoupil, Vladimír (advisor)
The thesis deals with choosing the appropriate conception for a 3D CNC machining module, design, and construction of the given machine. This work is laid out into several parts that deal with automated production assemblies, appropriate construction alternate design, design of the selected machining module, and FEM method.
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Fire Station
Hořák, Michal ; Jelínek, Petr (referee) ; Struhala, Karel (advisor)
The diploma thesis includes a new building of the fire department. The building is located in Valašské Klobouky, along Brumovská street. The main entrances to the buildings are oriented to the west. It is a two-storey building, in part a basement. The construction system is bricked. The object is covered with a flat and sloping roof.
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A Comparison between Science Fiction Works of Arthur C. Clarke and Douglas Adams's Parody of the Genre
HORÁK, Michal
The first purpose of this paper is to define the term of science fiction genre, using literature specialized in the subject and later analyse the theoretical concept of parody in literature. The second part of the paper will consist of brief biographies of both authors (Arthur C. Clarke and Douglas Adams) and an analysis of Clarke's novel series Space Odyssey. The purpose of this paper is a comparison of Clarke's legendary series with Adams' parody of the genre The Hitchhiker's Guide to the Galaxy, by identifying main characters, motifs and symbols, and subsequently compare the settings of both series, character motivations and narrative strategies.
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Technologies of fourth industrial revolution in transformers design and production
Horák, Michal ; Holub, Michal (referee) ; Knobloch, Josef (advisor)
In response to the current customer demand customization trend, businesses are trying to tailor their processes to the growing variability that results from this trend. This paper explores the Industry 4.0 principles to achieve these goals. In the first part of the thesis, the basic principles of Industry 4.0 are described on the basis of the study of literature and the possibilities that these principles bring to process control and management. There is also a description of the issue of process and enterprise transformation based on Industry 4.0 principles, based on studies made by consulting companies. At the beginning of the application part of the thesis is analyzed the level of digitization of the enterprise, which intend to transform according to Industry 4.0 gardually. Also a list of proposals to increase the level of digitization in different area sis provided. Subsequently, the application part analyzes the process of setting up the workplaces of the business, which is the process most affected by the growth of variability. Based on the analysis of the process and the study of the available technical solutions, process modifications in the sense of Industry 4.0 were proposed, which could led to increase its quality, shorten the duration and thereby save the company's financial savings through the digitization of the process.
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Strength Abilities Stimulation for Children in the Age of 6 - 15 Years
Horák, Michal ; Perič, Tomáš (advisor) ; Tilinger, Pavel (referee)
Thesis name: Strenght abilities stimulation for children in the age of6 - 15 years Thesis aims: To describe theoretical basis of stimulation of children strenght skills. To design the conception for children strenght training and to find suitable methods, means and fonns ofstimulation ofchildren strenght skills. Method: Qualitative analysis of documents' content was used for identification of main theoretical basis of stimulation of children strenght skills. Determiners of children strenght development were described on the basis of deeper analysis. Main theoretical resomces were finally joined into logical complex by the method of synthesis. On this basis the conception of strenght abilities stimulation could be made and suitable methods, means and fonns of children strenght training could be chosen. Results: Brings insight to stimulation of children strenght abilities theme, describes basic theoretical basis and determiners of children strenght development and describes suitable methods, means and forms of children strenght training in the framework of strenght training. Keywords: children, strenght, stimulation, theory, detenniners, ontogenesis, physiology, moďology, methods, means, forms, ice-hockey 4
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