Diffraction on a needle,Photo 1 of 2. A needle is placed in a beam produced by either a Helium-Neon laser operating at 632.8 nm (red,Photo 1) or a Helium-Neon laser operating at 543.4 nm (green,Photo 2). The resulting Fresnel diffraction patterns are observed at the same distance from the needle. Note that the fringe spacing is smaller for the green laser | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 3323 px × 5119 px |
Model Release : | Non requis |
Restrictions : |
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