Streaking ahead: in this illustration of femtosecond streaking the detection of electron currents induced in ambient air plasma by a pair of cross-polarized laser pulses is used to sample the electric ...
(Nanowerk News) X-ray free-electron lasers (XFELs) have delivered intense, ultrashort X-ray pulses in the femtosecond range for over a decade. A femtosecond is equivalent to a millionth of a billionth ...
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