What is dispersion, Physics

Assignment Help:

What is dispersion?

Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation of refractive index of the material along with wavelength this leads to dispersion and is termed as material dispersion. In many materials the refractive index reduces with increase into wavelength, λ, and therefore (dn/dλ)<0.

Generally, dispersion can occur because of material properties or because of the geometry of the structure through that the electromagnetic wave is propagating that is the waveguide. Hence, based onto the source of dispersion, this is classified in material dispersion and waveguide dispersion.


Related Discussions:- What is dispersion

Vibrating strings, Two wires on a piano are the same length and are pulled ...

Two wires on a piano are the same length and are pulled by the same tension. wire 1 vibrates at a frequency 1.5 times the frequency of wire 2. Calculate the ratio of their masses (

Application to stress analysis, In mechanics, stress is a measure of the in...

In mechanics, stress is a measure of the internal forces acting within a deformable body. Quantitatively, it is a measure of the average force per unit area of a surface within the

Illustrate about optical memories, Q. Illustrate about Optical Memories? ...

Q. Illustrate about Optical Memories? In 1983 one of the most successful consumer products of all times was introduced which is compact disk (CD) digital audio system. This CD

Principal value, What is the Principal value branch of i i Ans) Princip...

What is the Principal value branch of i i Ans) Principal value branch of ii=e-π/2

Explain the phenomena due to surface tension, (i)  Lead balls are spherical...

(i)  Lead balls are spherical in shape. (ii) Rain leaves and a globule of mercury placed on glass plate are spherical. (iii) Hair of shaving painting brush, when goes in wate

Find the resistance r in the circuit, The current is an RL circuit drops fr...

The current is an RL circuit drops from 1.1 A to 13 mA in the first second following removal of the battery from the circuit. If L is 12H, find the resistance R in the circuit.

Determine the range of source wavelength values, A weakly guiding fibre wit...

A weakly guiding fibre with a particular graded core index has cut-off V-values for its 2nd, 3rd and 4th modes of 2.5, 3.9 and 5.2, respectively. The core radius is 4 microns, the

Screw gauge, i want to do experiment online

i want to do experiment online

Classification of resistors , Depending on the material of the resistance e...

Depending on the material of the resistance element, resistors are classified into linear resistors and non linear resistors. Majority of the resistors used in electronic circuits

Explain the planets, Explain The planets? The planets:- We know in the ...

Explain The planets? The planets:- We know in the solar system that the sun is set and that moving round it are a number of large spheres called as planets . These are nine pla

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd