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Semináře a workshopy oddělení 23

Seminář / Úterý, 11.06.2019 15:00

Abstract: This talk presents an overview of our recent work on the interaction of ultrashort, high-intensity terahertz pulses with semiconductor materials. After a brief introduction to the field of extreme nonlinear optics in atoms and solids, the basic ingredients of the microscopic semiconductor modelling are summarized. Examples of successful theory-experiment comparisons are discussed, including the generation of very high harmonics, dynamical Bloch oscillations, internal quantum interference effects, quasiparticle collisions, as well as lightwave valleytronics in TMDCs...

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Seminář / Pondělí, 10.06.2019 14:00

Abstract: Charge and spin density waves (CDW/SDW) have been a subject of condensed matter research for decades. The current interest on this topic stems in part from the CDW/SDW status in the phase diagram of superconductors, especially high Tc and related novel superconductors. Additional long term interest in these materials and states originates in their occurrence in quasi-1D and quasi-2D geometries, making their nano- and atomic scale realizations candidates for quantum materials. In this talk, we will review several approaches we have been developing since mid 2000s,...

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