Přístupnostní navigace
E-application
Search Search Close
Branch Details
Original title in Czech: Fyzikální a materiálové inženýrstvíFSIAbbreviation: D-FMIAcad. year: 2011/2012Specialisation: Physical Engineering
Programme: Physical and Materials Engineering
Length of Study: 4 years
Accredited from: Accredited until: 1.3.2016
Profile
The curriculum concentrates on the comprehensive study of materials properties and failure processes from the point of view of physics and physical metallurgy. Students should develop capability to apply their knowledge in inventive manner to new technologies and materials, such as plasma spraying, special methods of thermo-mechanical and thermo-chemical treatment, etc. Special attention is paid to the degradation processes and to the synergetic effects of various materials properties on material failure. The subjects of study are metallic and non-metallic materials, e.g., structural ceramics, polymers, amorphous and nanocrystalline materials and intermetallics. The Ph.D. programme requires proficiency in mathematics and physics at the MSc. degree level obtained from Faculty of Science or Faculty of Mechanical Engineering.
Guarantor
prof. RNDr. Miroslav Liška, DrSc.
Issued topics of Doctoral Study Program
The project should continue in the recent research on rigorous numerical simulation of photonic structures [1-3] and is aimed at the theoretical analysis and numerical modelling of optical effects in modern photonic structures. New types of guided-wave and coupled-resonator waveguide structures will be thoroughly studied having in mind their potential applications in signal processing (e.g. nonlinear functional devices, "slow light" structures), and possibly also sensors. [1] J. Čtyroký, S. Helfert, R. Pregla, P. Bienstman, R. Baets, R. de Ridder, R. Stoffer, G. Klaasse, J. Petráček , P. Lalanne, J.-P. Hugonin, and R. M. De La Rue: "Bragg waveguide grating as a 1D photonic bandgap structure: COST 268 modelling task," Opt. Quantum Electron. 34 455 (2002). [2] J. Petráček, "Frequency-domain simulation of electromagnetic wave propagation in one-dimensional nonlinear structures," Optics Communications, 265 (2006) 331-335. [3] F. Morichetti, A. Melloni, J. Čáp, J. Petráček, P. Bienstman, G. Priem, B. Maes, M. Lauritano, G. Bellanca: "Self-phase modulation in slow-wave structures: A comparative numerical analysis," Optical and Quantum Electronics, 38 (2006) 761-780.
Tutor: Petráček Jiří, prof. RNDr., Dr.
The LIBS technique utilizes the high power-densities obtained by focusing the radiation from a pulsed laser to generate in the focal region a luminous micro-plasma from an analyte. The micro-plasma emission is subsequently analyzed by spectrometer. The plasma composition is representative to the analyte's elemental composition. LIBS allows to reach high spatial (limited by the size of the laser beam diameter) and depth resolution (in the range of about some tens of nanometers). Detection limits are in the range of few tens particles per million. In the frame of the dissertation work remote-LIBS technique will be applied for selected industrial and biological samples.
Tutor: Kaiser Jozef, prof. Ing., Ph.D.
The work will be focused on proving of a coherence-controlled holographic microscopy (CCHM) application for the living-cells dynamics observation.
Tutor: Chmelík Radim, prof. RNDr., Ph.D.
The LIBS technique utilizes the high power-densities obtained by focusing the radiation from a pulsed laser to generate in the focal region a luminous micro-plasma from an analyte. The micro-plasma emission is subsequently analyzed by spectrometer. The plasma composition is representative to the analyte's elemental composition. LIBS allows to reach high spatial (limited by the size of the laser beam diameter) and depth resolution (in the range of about some tens of nanometers). Detection limits are in the range of few tens ppm; for several elements even lower limits could be realized combining LIBS and laser-induced fluorescence spectroscopy (LIFS) techniques. In the dissertation work the automatization of the LIBS and LIBS+LIFS setups will be addressed. A computer code should be worked out for controlling all equipments and allowing automatic 2D and quasi-3D analysis of sample chemical composition. The function of automatized setups will be verified on selected samples.
The aim of the work will be research of non-standard imaging modes provided by coherence-controlled holographic microscopy and their application especially for observation in optically turbid media.
Development of the elements of SPM and its application in the field of surfaces, thin films and nanostructures. A possibility of incorporation of the microscope or its individual components into SEM or other microscopid techniques.
Tutor: Šikola Tomáš, prof. RNDr., CSc.
Development of the control unit of piezoceramic annomanipulators and actuators. These elements will be used as a part of SPM or measuring or litografic stages.
Tutor: Spousta Jiří, prof. RNDr., Ph.D.
The target of thesis is: To obtain experimental data describing the light scattering from technically important surfaces (e.g. from surfaces of subsystems of solar cells, from surfaces of automobile headlights reflectors etc.) and to study a relation between these data and the technology of the surface preparation.
Tutor: Ohlídal Miloslav, prof. RNDr., CSc.
- Study of local anodic oxidation (LAO) by AFM. - Application of AFM in fabrication of masks and grids for nanoelectronics and nanophotonics.
- Study of principles in fabrication of nanostructures by local sputtering and deposition using the focused ion beam (FIB) - Application of FIB for fabrication of masks and grids in nanoelectronics and nanophotonics
- Development of the methods of fabricatiom of nanostructures and nanodevices (e.g. quantum rings and dots, single electron transistors, spin valves, etc.) by application of available methods (e.g. local anodic oxidation by AFM, focused ion beam - FIB, electron lithography) on advanced materials and structures (e.g. semiconductor heterostructures with 2D electron gas, magnetic layered structures and semiconductors, graphene, etc.). - Measurement of electrical and magnetoelectrical properties of fabricated stractures and devices, ane their possible application
empty
Tutor: Müllerová Ilona, Ing., DrSc.
Ion Beam Assisted Deposition (IBAD) of thin films ZrO2, HfO2, Al2O3, hydroxylapatite ..., part II.
When imaging a solid surface by means of the focused beam of particles in the scanning electron microscope the image signal is generated primarily by detection of backscattered and secondary electrons. While the secondary electrons bear information about the surface relief and possible coverage with thin films, the backscattered electrons provide so called material contrast. Scattering of fast electrons in crystals takes place mainly on nuclei of the target atoms and hence its rate is proportional to the atomic number of the material. When lowering the incident energy of electrons the scattering is increasingly influenced by target electrons, first the bound electrons screening the nucleus, later also the quasifree electrons. Thus, scattering anisotropy increases with retarding the incident particles so possibilities of imaging the crystallinic structure and its orientation with respect to the instrument are enhanced. Because the internal stress in crystals causes local deformations of their structure, presence of a stress projects itself in local modifications of the angular distribution of backscattered electrons, particularly at low energies. Introduction of so called cathode lens in the scanning electron microscope enables one to extend the electron energy down to units of eV with preserved image resolution. So adapted device is capable of examining in detail the development of the image contrast throughout the full energy scale and of following efficiencies of individual contrast mechanisms. The information content of this type of surface imaging is then multiplied. The goal of the dissertation is to examine the main contrast mechanisms relevant to imaging at low energies with emphasis on visualization of the local stress, to propose and procure suitable samples of deformed metallic polycrystalline structures, to perform series of experiments, to propose and perform interpretation of results with respect to detection of the local stress and its quantification and to set up a model of the contrast mechanism offering quantitative data about local internal stresses upon behavior of the image contrast in neighborhood of a measured point.
Application of plasmon polaritons in nanophotonics - Generation and detection of plasmon polaritons in metal thin films and nanostructures. - Study of propagation of plasmon polaritons on surfaces of these objects and their application (e.g. in nanosensors).
Tutor: Dub Petr, prof. RNDr., CSc.
Application of plasmon polaritons in nanophotonics> - Fabrication of plasmonic nanostrucutres (e.g. nanoantennas) and a study of their influence on local excitation of electromagnetic. radiation. - Application of plasmonic nanostructures in local excitation of photoluminescence or enhancement of solar cell efficiency.
The target of thesis is - to perform numerical calculations of angular distribution of light intensity scattered from rough surface of given type (a surface with the Gaussian distribution of irregularities, surfaces prepared by alkaline etching etc.) within the framework of the Kirchhoff theory of the scattering of electromagnetic waves from rough surfaces. - to compare results obtained with the experimental results achieved in The Laboratory of Coherent Optics, Institute of Physical Engineering FME BUT.
A study of the influence of the magetic field on the propagation of surface plasmon polaritons. Exploitaion of this phenomenon in the field of sensors and detectors.
- Building an apparatus for the measurements of local and integral photoluminescence properties of nanostructures - Study of photoluminescence properties of nanostructures (ordered and disordered semiconductor/dielectric structures)
- Development of the methods of manipulation/formation of nanofibres (e.g. C60) between segments of nanoelectrodes. - Measurement of electrical transport properties of nanofibres.
- Application of a newly developed ultravacuum apparatus based on MBE and RHEED, for preparation of magnetic ultrathin films and nanostructures - Application of FIB, EBL and other methods for preparation of magnetic ultrathin films and nanostructures - Study of magnetic properties of ultrathin films and nanostructures
For applications of shape-memory NiTi alloys a thorough knowledge of their functional, thermomechanical behaviour is necessary. In the frame of the PhD study, experimental methods for thermomechanical tests of thin NiTi wires in tension, torsion and dynamic loading will be developed. Moreover, functional models of Stewart platform assigned for precise space positioning and loading of engineering and biological components will be designed. The research will be performed in a close collaboration with the Institute of Physics, ASCR, in Prague and will be supported by the MEYS in the frame of the research project MSM0021630518.
Tutor: Pokluda Jaroslav, prof. RNDr., CSc.
The PhD study will address the combination of advanced non-destructive imaging techniques (as X-ray microradiography and microtomography) and quasi non-destructive, laser-ablation based analytical techniques (LIBS, DP-LIBS, LA-ICP-MS etc.) for chemical mapping. Application of the combination of these techniques is expected in the field of archaeology. Methods, which enable to display the entire 3D structure of the studied object non-destructively, are intensively studied in many scientific and industrial branches. Up to now, for the practical use, the (computed) tomography (CT) i.e. a method that gathers 3D information by reconstruction from 2D projections is mostly employed. The LIBS technique utilizes the high power-densities obtained by focusing the radiation from a pulsed laser to generate in the focal region a luminous micro-plasma from an analyte. The micro-plasma emission is subsequently analyzed by spectrometer. The plasma composition is representative to the analyte's elemental composition. LIBS allows to reach high spatial (limited by the size of the laser beam diameter) and depth resolution (in the range of about some tens of nanometers). Detection limits are in the range from particles per million. In the frame of the dissertation work these two techniques will be studied, combined and applied to investigate different archaeological samples.
Methods, which enable to display the entire 3D structure of the studied object non-destructively are intensively studied in many scientific and industrial branches. Up to now, for the practical use, the (computed) tomography i.e. a method that gathers 3D information by reconstruction from 2D projections is mostly employed. Computed tomography (CT) has been widely extended in medical diagnostic. Moreover, especially the X-ray micro-CT has been applied in further important areas, such as machine design and diagnostics, biology, geophysics, archaeology and many others. It is obvious from above-mentioned examples, that qualitative and quantitative 3D visualization techniques based on tomographic reconstruction are intensively investigated worldwide. The topics of the dissertation work include study, application and improvements of absorption- and phase-contrast X-ray micro-CT techniques.
Study plan wasn't generated yet for this year.