Amplitude Coefficients and Phase Shift for Internal Reflection
The amplitude coefficients for the case of internal reflection r┴ , t┴, r‖ and T‖ are plotted in Fig (a) for flint glass to air.…
Mathematics
Explain Amplitude Coefficients and Phase Shift for External Reflection
By definition, for external reflection nt > ni. Hence, √ [(nt / ni)2 – sin2 θi] is real for all θi, and so therefore are…
Amplitude Reflection and Transmission Coefficient for Parallel Polarization
Amplitude reflection and transmission coefficient for parallel polarization Figure: EM field geometry for parallel (π, p) polarisation. The magnetic field is shown pointing in to…
Amplitude Reflection and Transmission Coefficients for Perpendicular Polari-sation
Amplitude reflection and transmission coefficients for perpendicular polari-sation Figure: EM field geometry for perpendicular (σ, s) polarisation. The electric field is shown pointing out of…
Explain Boundary Conditions at Interface
As an electromagnetic wave intersects the interface between two dielectrics, it is the boundary conditions on the electromagnetic field that determine the properties of the…
Explain Laws of Reflection and Refraction
Consider a monochromatic plane EM wave incident on a plane boundary between two dielectric materials. Part of the wave is transmitted and part is reflected.…
Explain Circular and Elliptical Polarisation
In both circular and elliptical polarisation the electric and magnetic field vectors rotate with angular frequency w. In circular polarisation E0,y = E0,x ≡ E0…
Explain Linear Polarisation
In linear polarisation the two phase constants are equal, by ϐy = ϐx ≡ ϐ, and so Re {R (r, t) = (x E0,x +…
Explain Polarisation of EM Waves
In this section linear, circular and elliptical polarisations will be described in terms of the electric field of a monochromatic plane wave propagating in the…
What is Coherence of EM Waves?
The monochromatic plane wave solutions are an idealisation because they are of infinite extent in all directions and are pure sinusoidal waves, i.e. the spread…
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