per angstrom
Wavenumberexact by definition
The reciprocal angstrom is exactly 10¹⁰ m⁻¹. It is the standard axis of reciprocal space in crystallography and scattering: X-ray and neutron diffraction patterns are plotted against the momentum transfer q in Å⁻¹, and band structures are plotted along reciprocal lattice directions in the same unit.
Watch out: Two conventions for the scattering vector are both in circulation, differing by a factor of 2π, and papers are not always explicit about which they use. Compare a peak position against a known lattice spacing before trusting a q axis.
| 1 | 10,000,000,000 |
One per angstrom in every wavenumber unit
| 10,000,000,000,000 | per kilometer (km⁻¹) | |
| 10,000,000,000 | per meter (m⁻¹) | |
| 3,048,000,000 | per foot (ft⁻¹) | |
| 254,000,000 | per inch (in⁻¹) | |
| 100,000,000 | per centimeter (kayser) (cm⁻¹) | |
| 10,000,000 | per millimeter (mm⁻¹) | |
| 10,000,000 | line pairs per millimeter (lp/mm) | |
| 10,000 | per micrometer (μm⁻¹) | |
| 10 | per nanometer (nm⁻¹) | |
| 1 | per angstrom (Å⁻¹)this unit |
Solvers that use wavenumber