index of refraction

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index of refraction

[′in‚deks əv ri′frak·shən]

(optics)

The ratio of the phase velocity of light in a vacuum to that in a specified medium. Also known as absolute index of refraction; absolute refractive constant; refractive constant; refractive index.

References in periodicals archive ?

Hence, we find that the index of refraction is a measure of the inhomogeneity of the medium.

Interactions in an Acoustic World: Dumb Hole

It is seen that due to the polarization the index of refraction of the vacuum can be increased by--0.1-1% for the ratio of the phenomenological constants to be in a range of [a.sub.0]/b = [10.sup.-8] - [10.sup.-6] [K.sup.-1], which could lead to -2-3% weight loss for a sample as shown in [12].

Vacuum Polarization by Scalar Field of Bose-Einstein Condensates and Experimental Design with Laser Interferences

We have the shifts of the frequency density to the space variable on the left hand side while the index of refraction is on the left hand side.

On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler's Effect

If we include in the transmittance term the interreflections of the light in the window, and we also include the index of refraction of air ([n.sub.a]), Eq.

Immersion Coefficient for the Marine Optical Buoy (MOBY) Radiance Collectors

Second, because its domain of application and limitations are most appropriate for a system such as HPP dispersed in a polymer resin: i.e., one possessing a quasi-spherical structure, narrow polydispersity in size, and a reasonably low relative index of refraction with the non-absorbing surrounding medium.

Theoretical study and experimental analysis of the scattering efficiency of hollow polymer particles in the dependent light scattering regime

The dielectric constant [epsilon] is related to the index of refraction n by [epsilon](z) = [n.sup.2](z).

Effects of nonlinearity on wave propagation in fiber Bragg gratings

In through-transmission mode, the index of refraction (n) could be obtained from the following as shown in Figure 4:

Terahertz wave approach and application on FRP composites

The reflectance of the luminaire was set to 90 percent and the index of refraction of the prism was set to 1.491, respectively.

Development of a numerical model for the luminous intensity distribution of a planar prism LED luminaire for applying an optimization algorithm

Numerical simulations were performed as a function of the filling fraction and the relative index of refraction, nY defined as the ratio between the index of refraction of the scatterers and the surrounding media noted n and n0.

Dependent light scattering in white paint films: clarification and application of the theoretical concepts

We assume waveguides free from losses, small variations of the index of refraction and propagation along the z axis of the form exp[j([omega]t - [beta]z)].

Electromagnetic waves scattering at interfaces between dielectric waveguides: a review on analysis and applications

London, July 11 (ANI): Scientists have built optical nanostructures that enable them to engineer the index of refraction and fully control light dispersion.

Metamaterial with zero refraction could revolutionize telecommunications

With single-sided applications, it also enables perfect index of refraction (RI) matching between air and glass, while avoiding RI mismatch at the glass and EVA interface seen on double-sided coatings.