Definitions

1. noun

A unit of measurement of the spectral line width in the Doppler broadening of a spectral line, representing the relationship between the Doppler width and the thermal velocity of particles.

“The Brillouin zone is essential in understanding the electronic properties of solids.”

2. adjective

Relating to or denoting the Brillouin zone or the Brillouin function.

“Brillouin scattering is an inelastic light scattering process.”