Engineering Electromagnetics
Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 12, Problem 12.15P
To determine

(a)

The minimum value of the glass refractive index, ng.

To determine

(b)

The refractive index of the quarter-wave film, nf.

To determine

(c)

The ratio, Pout/Pin.

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A single mode fibre is to be dimensioned. The normalised frequency is 80 % of the maximum allowed for single mode condition. The relative refractive index difference is 0.005 and the refractive index of the core is 1.5. The wavelength is 1.5 µm. A. Determine the radius of the core. B. If the number of modes supported by this fiber is 5. Determine the radius of the core.
Consider a GaAs LED with a refractive index of 3.66. The LED's surface is coated with a dielectric with a refractive index of 2.07. Some of the emitted photons are not transmitted due to internal reflection. What is the minimum angle of incidence for total internal reflection to occur? Express your answer in degree (º).
Consider a GaAs LED with a refractive index of 3.66. The LED's surface is coated with a dielectric with a refractive index of 2.07. Some of the emitted photons are not transmitted due to internal reflection. What is the minimum angle of incidence for total internal reflection to occur? Express your answer in degree (°).
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Publisher:Mcgraw-hill Education,