0 causing, caused by, or connected with light or sound changing direction or separating when it travels through water, glass, etc.: --
On all illuminated points of one pattern, the refractive index was a near-maximum, while on the other it was a near-minimum.
It is of degree 2 + 3s in the square of the refractive index if s is the number of different particle species.
Consequently, the refractive index is not uniform in that region too.
Refractive errors were evaluated during rearing in all subjects.
Such an effect competes with the usual refractive ones, and plays a crucial role in plasma diagnostics, radio-frequency heating and current drive experiments.
The beam thus creates a refractive index profile across its wavefront corresponding to its own intensity profile and focuses of its own.
Such a refractive index profile will tend to focus the pulse, preventing the natural diffraction and keeping the laser pulse confined in the channel.
The cell width increased very slowly, and the refractive index gradients decreased, but the effects were still observable many days later.
