reciprocal length

It is thus a unit of reciprocal length.

Attenuation coefficient is measured using units of reciprocal length.

Reciprocal length or inverse length is a measurement used in several branches of science and mathematics.

Quantities measured in reciprocal length include:

Kilometre per square kilometre is an SI derived unit of reciprocal length used for measurement of density of a linear feature in an area.

Fourier transform (FT) inverts the dimension, so the FT of the interferogram belongs in the reciprocal length domain, that is the wavenumber domain.

The magnitude of the reciprocal lattice vector is given in reciprocal length and is equal to the reciprocal of the interplanar spacing of the real space planes.

It has dimensions of reciprocal length, so its SI unit is m and cgs unit cm (in this context formerly called the kayser, after Heinrich Kayser).

If the concentration is expressed as a mole fraction i.e., a dimensionless fraction, the molar absorptivity (ε) takes the same dimension as the absorption coefficient, i.e., reciprocal length (e.g., m).

In the case of orthogonal coordinates, the contravariant basis vectors are easy to find since they will be in the same direction as the covariant vectors but reciprocal length (for this reason, the two sets of basis vectors are said to be reciprocal with respect to each other):