Ultrafast Strong Field Dynamics in Dielectrics
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Beschreibung
This thesis presents a systematic discussion of experimental approaches to investigating the nonlinear interaction of ultrashort visible strong fields with dielectrics directly in the time domain. The key finding is the distinctly different peak-intensity dependence of the light-matter energy transfer dynamics on the one hand, and the observed transient optical and electronic modifications on the other. As the induced electron dynamics evolve on sub-femtosecond timescales, real-time spectroscopy requires attosecond temporal resolution. This allows a range of parameters to be identified where the optical properties of the samples exposed to ultrashort light fields suffer dramatic changes allowing signal metrology while real absorption leading to dissipation is essentially absent. These findings indicate the feasibility of efficient optical switching at frequencies several orders of magnitude faster than current state-of-the-art electronics and thus have far-reaching technological consequences.
This thesis presents a systematic discussion of experimental approaches to investigating the nonlinear interaction of ultrashort visible strong fields with dielectrics directly in the time domain. The key finding is the distinctly different peak-intensity dependence of the light-matter energy transfer dynamics on the one hand, and the observed transient optical and electronic modifications on the other. As the induced electron dynamics evolve on sub-femtosecond timescales, real-time spectroscopy requires attosecond temporal resolution. This allows a range of parameters to be identified where the optical properties of the samples exposed to ultrashort light fields suffer dramatic changes allowing signal metrology while real absorption leading to dissipation is essentially absent. These findings indicate the feasibility of efficient optical switching at frequencies several orders of magnitude faster than current state-of-the-art electronics and thus have far-reaching technological consequences.
Nominated as an outstanding Ph.D. thesis by the Max Planck Institute for Quantum Optics, Germany Includes a comprehensive and concise summary of the basic physical concepts of nonlinear optics for ultrashort pulses Provides an overview of recent pulse generation and characterization methods in ultrafast technology Presents schematic illustrations highlighting the most important principles of new experimental techniques Includes supplementary material: sn.pub/extras
Autor*in
Annkatrin Madlen Sommer
Themen in »Ultrafast Strong Field Dynamics in Dielectrics«
Nonlinear Optical Pulse Propagation Ultrafast Electron Dynamics Attosecond Physics Optical Signal Manipulation High Frequency Optical Switching Ultrashort Optical Fields Ultrashort Strong Light Fields