Observation of Rabi dynamics with a short-wavelength free-electron laser.

ABSTRACT: Rabi oscillations are periodic modulations of populations in two-level systems interacting with a time-varying field¹. They are ubiquitous in physics with applications in different areas such as photonics², nano-electronics³, electron microscopy⁴ and quantum information⁵. While the theory developed by Rabi was intended for fermions in gyrating magnetic fields, Autler and Townes realized that it could also be used to describe coherent light-matter interactions within the rotating-wave approximation⁶. Although intense nanometre-wavelength light sources have been available for more than a decade^7-9, Rabi dynamics at such short wavelengths has not been directly observed. Here we show that femtosecond extreme-ultraviol

SUBMITTER: Nandi S 

PROVIDER: S-EPMC9385478 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature