Optical properties
Colloids and nanoscience

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NM3200 V1 Article

Optical properties


Colloids and nanoscience

Author : Jean-Marc DI MEGLIO

Publication date: September 10, 2007 | Lire en français

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4. Optical properties

4.1 Light diffusion

Colloidal dispersions strongly scatter light, and this effect is commonly referred to as the Tyndall effect (John Tyndall, 1820-1893, Irish physicist) (Figure 8 ).

When colloidal particles are very small ( Rλ , where R is the radius of the particles and λ is the wavelength of the light radiation), non-conductive and such that their refractive index n obeys n2n0R/λ...

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