Tag

Electron Emission

All articles tagged with #electron emission

physics2 years ago•14 min saved

Revolutionizing Electronics: Laser-Controlled Attosecond Electron Emission from Nanometric Metal Tips

Researchers have measured the quantum dynamics of electron emission from solids with attosecond precision using two-colour modulation spectroscopy of backscattering electrons. The experiment measured photoelectron spectra of electrons emitted from a sharp metallic tip as a function of the relative phase between the two colours. The emission duration was found to be 710 ± 30 attoseconds, opening the door to the precise active control of strong-field photoemission from solid state and other systems.

via Nature.com|

#attosecond #electron-emission #nanostructures

technology2 years ago•3 min saved

Laser Precision Unleashes Lightning-Fast Electronics and New Laser Technology

Researchers from FAU, the University of Rostock, and the University of Konstanz have discovered a way to precisely control electron emission from metals by superimposing two laser fields of different strengths and frequencies. This could lead to new quantum mechanical insights and enable electronic circuits that are a million times faster than current technology. The researchers were able to determine the duration of the electron flow to 30 attoseconds, which could advance basic and application-related research. The most important field of application is light-field-driven electronics, which could generate an exactly defined sequence of electron pulses and electrical signals.

via SciTechDaily|

#attosecond-range #electron-emission #electronic-circuits