Attosecond optoelectronic field measurement in solids

Area of Science:

• Attosecond science
• Quantum optics
• Solid-state physics

Background:

• Sub-cycle light-matter interactions are crucial for understanding electron dynamics in solids.
• Attosecond science provides unprecedented temporal resolution to probe these interactions.

Purpose of the Study:

• To investigate the temporal localization of charge carrier excitation by light fields.
• To develop a novel method for high-precision light field metrology.

Main Methods:

• Excitation of charge carrier pairs in a solid using intense light fields.
• Utilizing the localized transition probability for waveform recording.
• Development of a simple electronic circuit for metrology.

Main Results:

• Transition probability is strongly localized shortly after electric field extrema.
• Demonstrated petahertz-bandwidth field metrology for light waveform recording.
• Achieved sub-femtosecond temporal precision in reconstructing electronic response.

Conclusions:

• The study provides a new tool for characterizing light fields with extreme temporal precision.
• This method offers insights into the sub-cycle electronic response of solid-state structures.
• Opens new avenues for ultrafast spectroscopy and light field control.