. "0"^^ . "Studium dynamiky delokalizovan\u00FDch elektronov\u00FDch stav\u016F v molekulov\u00FDch syst\u00E9mech pomoc\u00ED \u010Dasov\u011B rozli\u0161en\u00E9 terahertzov\u00E9 spektroskopie"@cs . "2008-12-31+01:00"^^ . . "2006-01-01+01:00"^^ . . . "1"^^ . "3303"^^ . . "1"^^ . "\"Time-domain terahertz spectroscopy is based on a phase-sensitive detection of changes of sub-ps broadband THz pulses upon their propagation through a sample. Time-resolved optical pump - THz probe experiments then constitute a contact-free method of the probing of ultrafast material response in far-infrared and sub-mm spectral range. The probing radiation exhibits a very strong interaction especially with light charged particles characterized by a delocalized wave function. The aim of this project is toapply this experimental method to the study of electronic properties and transport of carriers in photoionized gases and liquids. In liquides, this technique can directly monitor a transfer of electrons into a short-lived \"\"conduction band\"\" upon ionization in high laser field and their subsequent decay into the localized solvated-electron state. In gases, the experiments allow for\u00A0exploring multi-photon and high-field-tunneling ionization mechanisms by characterizing the laser-produced electron\""@en . "terahertz spectroscopy; pump-probe; multiphoton ionization; dynamics of free electrons"@en . "11"^^ . "Study of the dynamics of delocalized electronic states in molecular systems using time-resolved terahertz spectroscopy"@en . . . . "3303"^^ . . . "11"^^ . "\"\u010Casov\u011B rozli\u0161en\u00E1 terahertzov\u00E1 spektroskopie je zalo\u017Eena na f\u00E1zov\u011B citliv\u00E9 detekci zm\u011Bn sub-pikosekundov\u00FDch \u0161irokop\u00E1smov\u00FDch THz pulz\u016F b\u011Bhem jejich \u0161\u00ED\u0159en\u00ED vzorkem. \u010Casov\u011B rozli\u0161en\u00FD experiment, zalo\u017Een\u00FD na optick\u00E9m \u010Derp\u00E1n\u00ED a terahertzov\u00E9m vzorkov\u00E1n\u00ED, p\u0159edstavuje bezkontaktn\u00ED metodu studia ultrarychl\u00E9 odezvy materi\u00E1lu v\u00A0dalek\u00E9 I\u010C oblasti. Sondovac\u00ED z\u00E1\u0159en\u00ED vykazuje silnou interakci zejm\u00E9na s\u00A0lehk\u00FDmi nabit\u00FDmi \u010D\u00E1sticemi, charakterizovan\u00FDmi delokalizovanou vlnovou funkc\u00ED. C\u00EDlem projektu je aplikovat tuto experiment\u00E1ln\u00ED metodiku na studium elektronick\u00FDch a transportn\u00EDch vlastnost\u00ED nos\u00ED\u010D\u016F n\u00E1boje v\u00A0plynech a kapalin\u00E1ch. Tato technika umo\u017E\u0148uje v\u00A0kapalin\u00E1ch p\u0159\u00EDmo monitorovat p\u0159echod elektron\u016F po ionizaci siln\u00FDm laserov\u00FDm polem do kr\u00E1tko\u017Eij\u00EDc\u00EDch \"\"vodivostn\u00EDch p\u00E1s\u016F\"\" a jejich n\u00E1slednou prom\u011Bnu na lokalizovan\u00E9 solvatovan\u00E9 elektrony. V\u00A0plynech experiment dovoluje studovat multifotonovou ionizaci a ionizaci siln\u00FDm polem pomoc\u00ED charakterizace vznikl\u00E9ho elektronov\u00E9ho plazmatu. Experimenty budou, dopln\u011Bny v\u00FDpo\u010Dty\""@cs . . .