Wave numbers and wave vectors play an essential role in optics and the physics of wave scattering, such as X-ray diffraction, neutron diffraction, and elementary particle physics.
42.
Surface phonons are represented by a wave vector along the surface, "'q "', and an energy corresponding to a particular vibrational mode frequency, ?.
43.
Where is the length of the wave vector of the incident radiation and the second term on the right hand side is the first derivative of the phase in the diffraction direction.
44.
O, incident light wave vector; n bar, refractive index of grating bar; n o, refractive index of the surrounding medium of the grating bar .-->
45.
For plane waves propagating in electromagnetic metamaterials, the electric field, magnetic field and wave vector follow a left-hand rule, the reverse of the behavior of conventional optical materials.
46.
If we let the length of the wave vector \ bold { k } grow, then the central maximum of the cosine part stays at \ bold { r } = 0.
47.
In general, Bloch oscillations are a consequence of the periodic structure of the lattice potential and the existence of a maximum value of the Bloch wave vector k _ { max }.
48.
The presence of the reciprocal lattice wave vector implies a net phonon backscattering and a resistance to phonon and thermal transport resulting finite ? L, as it means that momentum is not conserved.
49.
If the wave vector and frequency of the forced oscillation at the difference frequency of the two signals satisfies the dispersion relation for electrostatic waves, such waves would exist and begin to propagate.
50.
By construction, every wave vector centered at the origin and terminating at an intersection between a rod and the sphere will then satisfy the Laue condition and thus represent an allowed diffracted beam.
