Fyzikální ústav Akademie věd ČR

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Research subjects of department 21

Study of refraction occurring during x-ray diffraction and its application

We have developed various types of x-ray synchrotron radiation monochromators with some additional properties: focusing, collimating, beam splitting and harmonics filtering. This, so called diffractive-refractive optics, was entirely developed in our group and was published in more than 20 papers and one book.  The full text >>

Research in the field of x-ray crystal optics for synchrotron radiation

   Research is focused on development of dynamical theory of x-ray diffraction on perfect crystals and the utilization of the results for the design and realization of new x-ray optical elements based on Si single crystals. In the collaboration with the Czech company Polovodice a.s. and by utilization of the optical laboratory and the optical work-shop of the Institute we are able to realize these elements (usually the focusing crystal monochromators).  The full text >>

Optical spectroscopy of crystals, ceramics, thin films, and nanostructures of dielectric and semiconducting materials suitable for application in optic, optoelectronic, microelectronic, acoustooptic, pyroelectric, and piezoelectric devices.

The aim of study of photoluminescence, thermoluminescence and optical absorption in the UV, visible, and IR spectral range is to reveal intrinsic point defects and impurities, to elucidate their electronic structure, and to determine their influence on material properties. Special attention is paid to optical properties of transition metal ions serving as spectroscopic probes for study of phase transitions.  The full text >>

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