Researchers have developed a method to measure the shape of laser pulses in ambient air. Unlike conventional strategies, it is does not require a vacuum environment and can be applied to laser beams ...

The observation of lasing in the forward direction in air upon focusing intense femtosecond light pulses has been a puzzling phenomenon since first observations have been reported about two decades ...

To break free from an atom, the negatively charged electron typically has to absorb a high-energy photon, such as that from the ultraviolet (UV) or x-ray spectrum. The electron then gets excited ...

The recent development of attosecond sources of coherent soft X-rays has opened a route to observing and controlling the fastest electronic processes in matter. In this rapidly evolving field, the ...

(Nanowerk News) How long does it take an atom to absorb a photon and loose an electron? And what if not one but many photons are needed for ionization? How much time would absorption of many photons ...

A team of researchers at the Center for Relativistic Laser Science, within the Institute for Basic Science (IBS) have developed a method to measure the shape of laser pulses in ambient air. Unlike ...