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Ultrafast Science

All articles tagged with #ultrafast science

Quantifying Charge Migration Speed in Molecules
science-and-technology2 years ago

Quantifying Charge Migration Speed in Molecules

Researchers have developed a method to measure the speed of charge migration (CM) in molecules, discovering that it can move several angstroms per femtosecond. This breakthrough research provides insights into ultrafast molecular dynamics and potential control over chemical reactions. By using a high harmonic spectroscopy (HHS) method, the team measured CM speed in a carbon-chain molecule and achieved a temporal resolution of 50 attoseconds. The study sheds light on the complexities of CM and offers a promising way to manipulate the rate of chemical reactions.

Unprecedented Study Reveals Molecular Charge Migration Speed
science-and-technology2 years ago

Unprecedented Study Reveals Molecular Charge Migration Speed

Researchers from Huazhong University of Science and Technology have successfully measured the speed of molecular charge migration (CM) in a carbon-chain molecule using a high harmonic spectroscopy (HHS) method. By reconstructing the CM dynamics at the most fundamental level, the team achieved a temporal resolution of 50 attoseconds and quantified the CM speed to be several angstrom per femtosecond. The study provides valuable insights into CM dynamics in molecules and opens up possibilities for manipulating chemical reactions by controlling CM speed through molecular alignment.