dispersion effect उदाहरण वाक्य

That year S . C . Crossmon, N . B . Dodge, and co-authors R . C . Emmons and R . N . Gates all wrote papers on the use of dispersion effects through the microscope to characterize particles.
In this technique, atoms'inner electrons absorb X-rays of particular wavelengths, and reemit the X-rays after a delay, inducing a phase shift in all of the reflections, known as the " anomalous dispersion effect ".
Being a spatial dispersion effect, the induced optical activity exhibit different behavior under the operation of wave vector reversal, when compared with the Faraday effect : the optical activity increment associated with the electrogyration effect changes its sign under that operation, contrary to the Faraday effect.
This is an extremely delicate experiment, although millisecond pulsars are stable enough clocks that the time of arrival of the pulses can be predicted to the required accuracy; the experiments use collections of 20 to 50 pulsars to account for dispersion effects in the atmosphere and in the space between us and the pulsar.
The London theory has much similarity to the quantum mechanical theory of light dispersion, which is why London coined the phrase " dispersion effect . " In physics, the term " dispersion " describes the variation of a quantity with frequency, which is the fluctuation of the electrons in the case of the London dispersion.

Instead, the solution that is currently used in practice is to perform dispersion compensation, typically by matching the fiber with another fiber of opposite-sign dispersion so that the dispersion effects cancel; such compensation is ultimately limited by nonlinear effects such as self-phase modulation, which interact with dispersion to make it very difficult to undo.
More generally, for weakly nonlinear and slowly modulated waves propagating in one space dimension and including higher-order dispersion effects not neglecting the time and space derivatives \ partial _ t a and \ partial _ x a of the amplitude a ( \ mu x, \ mu t ) when taking derivatives, where \ mu \ ll 1 is a small modulation parameter the averaged Lagrangian density is of the form: