Red laser beam from a helium-neon (HeNe) laser. This laser emits light with a wavelength of 632.8 nanometres. Laser light is coherent light of the same wavelength,produced by exciting the electrons in a gas or gas mixture | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrew Lambert Photography |
Bildgröße: | 4785 px × 3653 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |