List of suggested theses
Topic: Optical detecting systems for cosmic radiation – selected questions
Description: The topic is concentrated on the study of current optical detectors of cosmic radiation, participation in some of current international scientific projects of cosmic-ray research and participation at the research of new particular types of optical detectors of cosmic radiation, including participation in the scientific part of a related international collaboration.
Supervisor: prof. RNDr. Miroslav Hrabovský, DrSc.
Consultant:
Contact: kancelář 2.11
tel. 585 63 1501
Branches: AF
Topic: Analysis of characteristics of parametric down-conversion
Description: Simulation and testing of spontaneous parametric down-conversion, correlation measurement using photon-counting techniques as well as by classical intensity measurement.
Supervisor: doc. RNDr. Ondřej Haderka, Ph.D. / prof. RNDr. Jan Peřina, Ph.D.
Consultant:
Contact: kancelář 2.47/3.21
tel. 585 63 1511/1509
Branches: AF,NANO
Topic: Photocount statistics and its measurement in nonlinear optical processes
Description: Theoretical models of photocount statistics arising in different nonlinear optical processes will be studied. Special attention will be paid to parametric processes. Characteristics of the obtained fields will be discussed with respect to measurement.
Supervisor: prof. RNDr. Jan Peřina, Ph.D.
Consultant:
Contact: kancelář 3.21
tel. 585 63 1509
Branches: AF,NANO
Topic: Characteristics of parametric processes in nonlinear periodically-poled media
Description: Space beam properties. Study of efficiency of various processes. Optimization of generation of frequency down-conversion.
Supervisor: doc. RNDr. Jan Soubusta, Ph.D.
Consultant:
Contact: kancelář 3.23
tel. 585 63 1577
Branches: AF,NANO
Topic: Quantum information processing with correlated photon pairs
Description: Arrangement, processing and detection of special light states of single photon level. An interference of the second and fourth order is utilized in the experiments
Supervisor: doc. RNDr. Jan Soubusta, Ph.D.
Consultant:
Contact: kancelář 3.23
tel. 585 63 1577
Branches: AF,NANO
Topic: Testing modern materials using optical spectroscopic methods
Description: Measurement of absorbance, fluorescent and time-resolved fluorescent spectra of carbon, metal and metal-oxide nanostructures. Development of appropriate methods.
Supervisor: doc. RNDr. Jan Soubusta, Ph.D.
Consultant:
Contact: kancelář 2.47/3.23
tel. 585 63 1511/1577
Branches: AF,NANO
Topic: Analysis of cosmic gamma ray events in the CTA experiment
Description: The Cherenkov Telescope Array Observatory (CTAO or CTA) is going to be the largest and technically most advanced ground-based facility for detection of high-energy cosmic gamma rays. CTA will be located at both the southern and norther hemisphere. Both locations will be equipped with three types of telescopes covering three ranges of energies of the incoming gamma photons. The ultimate sensitivity will span energies from 20 GeV to 100 TeV. The detection principle is based on detection of Cherenkov light in the telescopes generated by charged particles traversing a medium with a speed greater than the actual speed of light in the given medium, i.e. in atmosphere. The charged particles are created in cascades of interactions whose onset is the primary interaction of the incoming gamma photon with atoms in the atmosphere. The envisaged work is supposed to cover the tasks of analysis and interpretation of the measured data. The primary task of CTA is to measure the energy spectrum and distribution sources of the gamma photons.
Supervisor: RNDr. Karel Černý, Ph.D.
Consultant:
Contact: karel.cerny@upol.cz
Branches: AF
Topic: Damage of materials induced by nanosecond particle bunches
Description: Laser-driven particle-acceleration experiments produce high luminosity particle bunches of nanosecond lengths. The aim of the thesis is to inspect mechanisms of damage induced in materials due to the interaction with such a short-time bunched particles.
Supervisor: prof. Jan Řídký, DrSc.
Consultant:
Contact: ridky@fzu.cz
Branches: AF
Topic: Quantum correlations in multi-mode optical fields generated in the process of spontaneous parametric down-conversion
Description: Quantum correlations in photon numbers of multi-mode optical fields originating in the process of spontaneous parametric down-conversion, that generates photons in pairs, and prepared by further manipulations (e.g. postselection) will be studied. Quantification of the quantumness of such correlations, striking features of these correlations as they exhibit in physically interesting quantities and their application potential will be addressed. Theoretical models appropriate for these fields will be developed and compared witht he experimental data, This will allow us to determie the practical potential of these fields in various applications including metrology. The topic may be extended to include the experimental part.
Supervisor: prof. Jan Peřina ml.
Consultant: prof. Ondřej Haderka
Contact: tel. 585631509,e-mail: jan.perina.jr@upol.cz
Branches: AF,NANO
Topic: Noclassical properties of simple PT-symmetric quantum systems described using methods of quantum statistical physics
Description: Simple quantum PT-symmetric and generalized systems like two- and more-level atoms and multi-mode optical bosonic systems will be studied from the point of view of their nonclassical properties. The analyzed systems will be described by Liouvillians and attention will be paid to their asymptotic behavior. Exceptional points are the striking features of PT-symmetric systems. At these points, the system behavior qualitatively changes, which may be used, e.g., for increasing sensitivity of quantum measurements. We will identify the exceptional points of analyzed systems including their degeneracies and study the behavior of system nonclassicality close to these points. We will look for suitable applications that expoint the striking properties of the analyzed systems.
Supervisor: prof. Jan Peřina ml.
Consultant:
Contact: tel. 585631509,e-mail: jan.perina.jr@upol.cz
Branches: AF,NANO
Topic: Exclusive processes as a road to New Physics
Description: Standard model is extremely successful in describing interactions of elementary particles, nevertheless there are areas that it is not able to explain, that's what we call New Physics. Signals of New Physics are also seen in the so-called exclusive processes. They occur scarcely nevertheless background to them is well under control. The student will get familiar with forward and diffraction physics at large experiments on large colliders of particles, and also with detection techniques and generating artificial (Monte Carlo) events. Emphasis on the former or latter will be decided upon with the supervisor. Stays at CERN are foreseen.
Supervisor: Mgr. Marek Taševský, PhD. DSc.
Consultant: RNDr. Karel Černý, PhD.
Contact: tasevsky@fzu.cz, 266 05 2668
Branches: AF
Topic: Experimental physics, thin film deposition
Description: The content of the topic is the study of physical processes in plasma using various selected experimental physical methods. These measurements will be performed in reactive low-temperature plasma, which is intended for the deposition process of various selected types of thin films with defined physical properties. As the main diagnostic systems for measuring plasma parameters, systems that are not affected by being covered with a thin semiconductor or electrically insulating thin film will be chosen. Also, the studied reactive plasma will not be time constant, but will be time variable or pulsed. Therefore, high-frequency measurement methods with time resolution will mostly be used. The aim will be to understand the physical processes in the plasma using the mentioned experimental methods and their influence on the parameters of the resulting deposited thin films.
Supervisor: RNDr. Zdeněk Hubička, Ph.D.
Consultant:
Contact: hubička@fzu.cz,
Branches: AF, NANO