Polaritons are "half-light half-matter" hybrid particles, having both the characteristics of photons—particles of light—and those of solid matter ... green, and blue light separately.

The solid particles are too large to pass through the ... In the example below, red, blue and yellow are three pure substances. The sample on the left is a mixture of all three.

The size of particles found in a colloidal dispersion range between 1 and 1000 nanometres. The two components are referred to as the dispersed phase and continuous phase respectively. Either phase can ...