Applications
Lasers: principles, applications and energy measurements

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Applications
Lasers: principles, applications and energy measurements

Authors : Costel SUBRAN, Jean SAGAUT, Sophie LAPOINTE

Review date: March 9, 2026 | Lire en français

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4. Applications

Laser applications are many and varied. Each application takes advantage of one or more properties of laser light that are inaccessible to conventional sources:

  • beam directivity, excellent focus ;

  • monochromatic light ;

  • short, intense impulses ;

  • tunability.

4.1 Scientific applications

The most revolutionary applications of lasers are certainly to be found in the scientific field.

  • Spectroscopy

    The laser produces :

    • of a wavelength tunable to a given atomic or molecular transition;...

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