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Proceedings of multidisciplinary conference LASER57
Růžička, Bohdan
Conference LASER57 is a multidisciplinary and intersectoral event where different kind of specialist can meet each other. They come from various environments (private company, university, public research organization etc.). Their common denominators are laser, optics and its applications.\n\n
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SMV-2017-03: Planar microstructures for optical applications
Horáček, Miroslav ; Kolařík, Vladimír ; Matějka, Milan ; Krátký, Stanislav ; Chlumská, Jana ; Meluzín, Petr ; Král, Stanislav
Development in the field of planar microstructures for optical applications, physical realization of structures by means of electron beam lithography. The project covers the processing and analysis of the graphical motive, research and application of planar microstructures performing required optical properties, research and modeling of the physical possibilities of implementation of microstructures, regard to the limits of current scientific instruments in our laboratory, data preparation for e-beam lithography exposure, samples exposure, verification of properties of samples and technical documentation preparation.
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Liveness Detection on Finger Using Various Light Sources
Vančo, Petr ; Kanich, Ondřej (referee) ; Drahanský, Martin (advisor)
The purpose of this work was to increase quality, security and reliability in biometric systems. This work presents electric and optical characteristics of a human finger. In the first part of this work you can find a theoretical basis about biometric systems, a skin and light. The next part is devoted to electric characteristics of a human finger. The third part of this work describes design, implementation and results of testing optical characteristics of a finger. In the end you can find information about some of the improvements for the future.
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Experimental sets in optics for Interactive Physics Laboratory
Machalická, Jana ; Kácovský, Petr (advisor) ; Gottwald, Stanislav (referee)
Title: Experimental sets in optics for Interactive Physics Laboratory Author: Jana Machalická Department: Department of Physics Education Supervisor: RNDr. Petr Kácovský, Ph.D., Department of Physics Education Abstract: As part of this thesis, a literature review focused on the topic of optics experiments was conducted. Building on the results of this review, four experimental stations were designed and realized based on the needs of the Interactive Physics Laboratory (IPL), operated by the Faculty of Mathematics and Physics, Charles University. Corresponding worksheets have also been created and provided to the students participating in each given experiment. The individual experiments, which are focused on the fields of geometrical and wave optics, are described in detail and accompanied by instructions on setting up the stations, as well as important notes on teaching methodology. Following the launch of this Optics experimental suite, a qualitative study exploring the effect of visiting the IPL on the understanding of the related physics concepts was performed by means of a short questionnaire on a small number of respondents. Several conclusions drawn from this study remain as interesting areas of future work. Keywords: physics experiments, labs, optics, secondary school
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Solved Problems in Optics
Jungová, Michaela ; Snětinová, Marie (advisor) ; Houfková, Jitka (referee)
Title: Solved Problems in Optics Author: Michaela Jungová Department: Department of Physics Education Supervisor: RNDr. Marie Snětinová, Ph.D., Department of Physics Education Abstract: Twenty problems in optics were created for electronic collection of solved problems in physics in my thesis. These problems contain detailed structured solutions with solved hints and pictures as well. You can find the problems in the chapter "Geometrical optics" on the website: http://reseneulohy.cz and on the enclosed CD. One of the chapters in my thesis deals with description of the problems. The thesis also engages in thesis engages in the way how to classify the problems using different standards. A proposal of a problem classification, that has been used in during study of both elementary and high school physics textbooks and collections, is presented in the thesis. The goals of this classification were two: to get the picture of school curriculum connected to optical problems and to propose suitable structure of the chapter Optics in the electronic collection, which is in the aboved mentioned electronic collection. Keywords: solved problems, classification of physics problems, electronic collection, optics
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Magneto-optic response of layered media
Kunt, Ota ; Ostatnický, Tomáš (advisor) ; Antoš, Roman (referee)
Optical response of materials strongly depends on their magnetic properties. This phenomenon is also used in materials in the form of thin layers and multi- layers. Using cited literature we summarize theory needed to calculate magneto- optical response of multilayers. The calculation is based on Maxwell equations and magnetic materials are described with effective permittivity tensor. Jones formalism is used to describe polarised light and Yeh formalism is used to de- scribe multilayer response. A program using presented theory was developed and calculations for concrete structure were made. Multilayer parameters were cho- sen to correspond with those of a sample whose magneto-optical response was measured at the Department of Chemical Physics and Optics, MFF UK. 1
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Optical response of magnetic materials
Wagenknecht, David ; Ostatnický, Tomáš (advisor) ; Antoš, Roman (referee)
David Wagenknecht: Abstract of a diploma thesis Optical response of magnetic materials, 2014 Magnetooptical properties of anisotropic semiconductors are studied to describe asymmetry of Ga1−xMnxAs, because theoretical calculations predict extraordinary behaviour of reflectivity. Analytical formulae to describe materials with non-diagonal permittivity are derived and they are used for the numerical calculations to describe the optical response of the samples available for the measurement. The transversal Kerr effect is calculated and it exhibits asymmetry in both rotation of the plane of polarization and ellipticity of circularly polarized light due to asymmetry in reflectivity. Moreover, longitudinal and polar magnetization are studied because of the influence on the observability of the phenomena. Results are not only used to discuss conditions, which must be satisfied to prove the asymmetry, but also the actual experimental setup is designed to prepare the measurement. 1
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Solved Problems in Optics for Electronic Collection
Homolová, Lenka ; Koupilová, Zdeňka (advisor) ; Snětinová, Marie (referee)
These Bachelor thesis aim to extend Collection of Solved Problems in Physics by adding tasks to chapter wave optics and widening newly opened chapter named Optics. This collection is created at the Department of Physics Education. Twenty two tasks were prepared within this thesis and they are included in individual subsections of Wave optics chapter. Each task includes a structured solution and most of them newly drawn pictures. There is a brief description of the collection and characterization of all prepared tasks in the text of the thesis. Four tasks including their structured solution are shown in supplement. All tasks can be found on enclosed CD or on the website of Collection of Solved Problems in Physics http://fyzikalniulohy.cz/.
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Verification of parameters of passive optical components on short wavelengths
Látal, Michal ; Filka, Miloslav (referee) ; Vojtěch, Josef (advisor)
Semestral thesis deals with the basic theoretical knowledge in the field of optics, light propagation and optical fibers. It describes in detail the optical transmission system and its associated issues, such as the attenuation of optical fibers or differently caused dispersion. The main part of this work is a description of each passive optical elements, their production technologies and applications in optical communications. Within the optical connection its radiation sources and detectors of optical radiation are explained. The last practical part is focused on the measurement of insertion loss provided by passive optical components.
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Pupil`s preconceptions in geometrical optics
Zedník, Michal ; Kolářová, Růžena (referee) ; Mandíková, Dana (advisor)
I was concerned with the preconceptions of the pupils in the area of geometric optics in my diploma work. I did the research among the pupils of grammar schools and multi-annual secondary schools. The used test contained ten questions. My choice of the questions was based on the researches concerning the misconceptions in optics that have been already done. I also mention the survey of these researches in my diploma work. I compiled the summary of the textbooks that are used at grammar schools and in the lower degrees of secondary schools in the next part. These textbooks are focused on the topics contained in the questions of the test. The survey of the testing results creates main part of my diploma work. I tested before and after the teaching of optics 162 pupils from eight classes of grammar schools and multi-annual secondary schools took part in the investigation. The table with the most frequent misconceptions that were ascertained during the testing is part of this survey. I devoted to the differences in the results between the pupils from grammar schools and multi-annual secondary schools and also the differences in the results of boys and girls.
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