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Last update: T_KCHFO (22.05.2008)
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Last update: doc. RNDr. Petr Kužel, Ph.D. (07.06.2019)
Oral examination; in the extent of the sylabus |
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Last update: doc. RNDr. Petr Kužel, Ph.D. (03.10.2022)
1. Historical overview and motivation for spectroscopy in THz spectral range 2. THz time-domain spectroscopy; coherent methods of generation and detection of ultrashort THz pulses: photoconductive switches, optical rectification (chi2, chi3 processes), spintronic approach; remarkable properties: direct observation of light oscillations, phase-sensitivity of the detection, time resolution, high-field THz pulses (nonlinearities in THz spectroscopy) 3. Principles of steady-state and ultrafast THz spectroscopy. Bulk materials, thin films 4. Ultrashort THz pulses: description beyond quasi-monochromatic approximation (Gouy phase shift and its implications for THz spectroscopy) 5. Other sources THz radiation (Backward wave oscillators, Gunn and Schottky diodes, High-electron-mobility transistors, photomixing, Quantum cascade lasers, Large scale facilities: Free electron laser, THz in synchrotron). Thermal detectors of THz radiation. 6. THz spectroscopy in solids:
7. Propagation and manipulation of THz radiation: tunable materials for THz applications, photonic structures and metamaterials, plasmonics, opto-THz modulators 8. THz imaging - applications; near-field THz microscopy (principles and applications) 9. Visit of the THz spectroscopy lab at FZÚ AVČR |