Shaping Attosecond Waveforms
A large international collaboration, including four researchers from Lund, have demonstrated for the first time ever the possibility to completely shape the waveform of an attosecond pulse train. The experiment was performed at the seeded Free-Electron Laser (FEL) FERMI in Trieste, which offers the unique capability to synthesize radiation with different wavelengths in the extreme ultraviolet spectral range with fully controllable relative phases.
The results have been published in the prestigious scientific journal Nature.
Space-time control of free induction decay in the extreme ultraviolet
We may soon get better insight into the microcosm and the world of electrons. Researchers at Lund University and Louisiana State University have developed a tool that makes it possible to control extreme UV light - light with much shorter wavelengths than visible light. The new method, called opto-optical modulation, uses strong laser pulses to direct the short bursts of light. This has been published in Nature Photonics.
Using a collection of argon atoms extreme ultraviolet light is redirected using a new and creative method called opto-optical modulation.