anomalous dispersion

noun

, Physics.

1. a sudden change in the refractive index of a material for wavelengths in the vicinity of absorption bands in the spectrum of the material.

Word History and Origins

Origin of anomalous dispersion¹

First recorded in 1880–85

Example Sentences

These bodies are always strongly coloured and show anomalous dispersion and (in solids) surface colour.

From Project Gutenberg

The name given to this phenomenon,—“anomalous dispersion”—is an unfortunate one, as it has been found to obey a regular law.

From Project Gutenberg

This is exactly in accordance with the observed facts in the case of substances showing anomalous dispersion.

From Project Gutenberg

Sellmeier's equation may also be modified to apply to the case of anomalous dispersion.

From Project Gutenberg