When attempting surface wave inversion, phase velocities are used more often than group velocities because it is easier to create a dispersion curve of phase velocities.
12.
He observed that the colored Becke ` lines noted by Maschke could be used to distinguish between two materials with the same refractive index but different dispersion curves.
13.
On the other hand, the dispersion of a chirped-mirror compressor can be manufactured to have a specific dispersion curve, whereas a prism compressor offers much less freedom.
14.
For optimal effects the powder and the liquid had to be carefully selected so that the intersection of their dispersion curves created as large an angle as possible over the full range of visible wavelengths.
15.
Second, dispersion colors will only be present if the two materials have the same refractive index for some wavelength in the visible spectrum ( referred to as ?o ) and they have very different dispersions curves for the refractive index.
16.
The glass blank pedigree, or " melt data ", can be determined for a given glass batch by making small precision dispersion curve, from which the index of refraction at any wavelength within the fitted wavelength range can be calculated.
17.
Although the lamb wave pioneers worked on nondestructive testing applications and drew attention to the theory, widespread use did not come about until the 1990s when computer programs for calculating dispersion curves and relating them to experimentally observable signals became much more widely available.
18.
He was also the first person to note that different materials had different dispersion properties . Sulfurous liquids ( organic liquids ) had a higher refractive index than was expected based on their specific gravity and had a steeper dispersion curve than most solids.
19.
To see the stability properties of the system, it is customary to plot a dispersion curve, that is, a plot of the growth rate \ text { Im } ( \ alpha { c } ) as a function of the wavenumber \ alpha.
20.
Since the dispersion curve lies to the right of the light line, " ? = k�c ", the SPP has a shorter wavelength than free-space radiation such that the out-of-plane component of the SPP wavevector is purely imaginary and exhibits evanescent decay.
