Reciprocal lattice: basics and properties

This lecture introduces the concept of the reciprocal lattice in electron diffraction, covering topics such as diffraction vector geometry, basis vectors, properties of reciprocal lattice unit cell vectors, and visualizing the reciprocal lattice. The instructor explains how reciprocal lattice vectors are defined, the relationship between real and reciprocal lattice unit cells, and the Fourier transform nature of the reciprocal lattice.