Sources and Diagnostics for Attosecond Science
Popular Abstract in English What is a photographic camera flash good for? The easy answer is “to illuminate”. There is more to it though: the duration of a camera flash is usually much shorter than the shutter speed of the camera. This allows us to take sharp pictures of fast objects with an inexpensive camera. Ultrafast science is based on a similar principle: no shutter is capable of opening andUltrafast science refers to physical events that happen on the femtosecond (1 fs=10^-15 s) and attosecond (1 as=10^-18 s) timescales. Generation of attosecond pulses is usually achieved by interacting high-intensity femtosecond pulses with matter (typically gases), in a process called high-order harmonic generation (HHG). Under the correct conditions, this process leads to the creation of sub-fs p
