Sökning: "Two-color harmonic generation"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Two-color harmonic generation.
1. Light-Matter Interaction on the Attosecond Timescale
Sammanfattning : Attosecond science refers to physical processes that occur on the natural timescale of electron motion in atomic and molecular systems. Attosecond time resolution can be obtained experimentally through a process called high-order harmonic generation where sharp attosecond pulses are formed in the time domain. LÄS MER
2. Measurement and Control of Attosecond Light Fields
Sammanfattning : Attosecond pulses are used to study electron dynamics in atoms and molecules. In this thesis, schemes to control the generation of attosecond pulses and pulse-shaping techniques to compress the pulses are presented. Generation of attosecond pulses requires high intensity, which is reached by focusing a pulsed femtosecond laser. LÄS MER
3. Attosecond Wave Packet Metrology
Sammanfattning : Attosecond pulses allow the study of electrons on their natural timescale. They are created from the interaction of atoms with ultrashort, intense laser pulses whose electric field approaches the strength of inner-atomic electric fields. This thesis presents experiments around the generation, characterization and application of attosecond pulses. LÄS MER
4. Short Attosecond Pulse Trains at High Repetition Rates for Novel Pump-Probe and Coincidence Studies
Sammanfattning : This work aims at studying photoionization dynamics from atoms and surfaces at attose time scales. The work was based on development and applications of a high repetition rate High-order Harmonic Generation (HHG) light source that utilizes Optical Parametric Amplification (OPA) laser technology. LÄS MER
5. Generation, characterization and application of infrared few-cycle light pulses
Sammanfattning : In recent decades, laser systems emitting pulses of light containing only a few electric field oscillations under their envelope have become common in many ultrafast optics laboratories. Owing to unique temporal characteristics and achieving extreme field strengths, these so-called few-cycle pulses have been instrumental in unlocking new regimes of light-matter interaction. LÄS MER
