A Gaussian beam emitted by a Helium-Neon laser hitting a screen. This laser emits a fundamental mode which has a Gaussian intensity distribution across the beam. The characteristic laser speckle pattern is apparent. The speckle results from scattering of the monochromatic beam by a screen that is rough on a microscopic (wavelength) scale | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 4550 px × 2965 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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