Optical wavelength
Optical radiation is an electromagnetic wave. The waves at different lengths contribute to the radiation spectrum and the separated wavelengths form a range. In other words, the wavelength is a distance between two recurring wave elements - Fig. 1. |
Optical radiation can be classified as: - infrared - visible - ultraviolet |
The following optical wavelengths correspond to each range:
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Fig. 2. Visible radiation spectrum with optical wavelength corresponding to a specific colour |