Lect 3.6 - Department of Electrical and Computer...

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Department of Electrical and Computer Engineering ECSE 352 Electromagnetic Waves and Optics 6 Special cases of wave reflection 3.6 Special cases of wave reflection References: Section 13.6 @AGK 3.6-1 Overview In the previous class we derived the Fresnel equations that relate transmission and reflection to the angle of incidence and the wave polarization. In this class we will seek conditions where we can have either totalreflection or total transmission . As we will see, there are several important applications of hese conditions these conditions. ECSE 352 3.6-2 Learning outcomes After taking this class you should be able to: • Explain what is meant by total internal reflection • Calculate the conditions for total internal eflection reflection • Explain what is meant by total transmission and Brewster’s angle • Calculate the conditions for total transmission • State applications for total internal reflection and Brewster’s angle. ECSE 352 3.6-3 Contents • Conditions for total internal reflection – Applications • Conditions for total transmission ppli ti ns – Applications ECSE 352 3.6-4
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Review: Fresnel coefficients • Equations that relate reflected and refracted amplitudes to he incident field amplitude the incident field amplitude p-polarization: s-polarization: 1 r 10 22 11 cos cos E     10 21 12 cos cos E    2 10 2 2 1 1 cos cos p E c o s 10 2 1 1 2 cos cos s E c o s 20 10 2 2 1 1 2c cos cos p E E   20 10 2 1 1 2 cos cos s E E ECSE 352 3.6-5
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This note was uploaded on 02/14/2011 for the course ECSE 352 taught by Professor Mi during the Fall '10 term at McGill.

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Lect 3.6 - Department of Electrical and Computer...

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