Laser pulse

Laser frequency (1)
Laser pulse (4)
Laser radiation (1)

Synopsis: Photonics & laser: Photonics & laser generale: Laser: Laser characteristics: Laser pulse:


texte_agro-tech\R_www.optics.org 2015 00265.txt

For the first time, scientists coupled their technique for generating X-rays from laser pulses with phase-contrast X-ray tomography to visualize tissues in organisms.

The X-rays required were generated by electrons that were accelerated to nearly the speed of light over a distance of approximately one centimeter by laser pulses lasting around 25fs.

The laser pulses have a power of approximately 80tw. By way of comparison: an atomic power plant generates 1, 500mw.

First, the laser pulse ploughs through a plasma consisting of positively charged atomic cores and their electrons like a ship through water, producing a wake of oscillating electrons.


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