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5. Electromagnetic Optics. 5.1 ELECTROMAGNETIC THEORY OF LIGHT for the 6 components Maxwell Eq. onde Maxwell.

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Presentation on theme: "5. Electromagnetic Optics. 5.1 ELECTROMAGNETIC THEORY OF LIGHT for the 6 components Maxwell Eq. onde Maxwell."— Presentation transcript:

1 5. Electromagnetic Optics

2 5.1 ELECTROMAGNETIC THEORY OF LIGHT for the 6 components Maxwell Eq. onde Maxwell

3 At the boundary between two dielectric media and in the absence of free electric charges and currents,  the tangential components of the electric and magnetic fields must be continuous,  the normal components of the electric and magnetic flux densities must be continuous.

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5 5.2 Dielectric media linear nondispersive homogeneous isotropic spatial nondispersive Localized approximation Constitutive relations

6 A. Linear, Nondispersive, Homogeneous, and Isotropic Media ( constant )  : permittivity   : dielectric constant n = (  o )^1/2

7 B. Nonlinear, Dispersive, Inhomogeneous, and Anisotropic Media

8 susceptibility tensor electric permittivity tensor

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11 5.3 Monochromatic EM waves

12 Intensity: average of the Poynting vector High frequency, cancel out in the average Thus with

13 5.4 Elementary EM waves impedance

14 Are the Maxwell equations fulfilled?

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16 5.5 Absorption and dispersion

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21 The refractive index n( ) is also related to the absorption coefficient  ), so that if one is known for all, the other may be determined.  being an analytic and well-behaved (  ( )/  0 when  ) function

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25 5.6 Pulse propagation in dispersive media

26 now, we have arrived the final solution of In summary, to find the transmitted field of

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29 propagating in a dispersive, non-absorption medium


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