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15
spring break
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16
Lecture 13
Waves in a dielectric, dispersion relation, effects of complex permittivity, phase velocity
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17
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18
Lecture 14
Group velocity, wave pulse spreading, normal and anomalous dispersion, real and imaginary parts of the permittivity, real and imaginary parts of the wavenumber, regions of transparent propagation
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19
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20
Lecture 15
Waves a dielectric: region of resonant absorption, region of total reflection, waves in a conductor: free current density and free charge density, frequency dependent conductivity
make-up lecture, 12:30 - 1:45pm in BL 106
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21
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22
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23
Lecture 16
Waves a conductor, dispersion relation, good and poor conductors, skin depth, plasma frequency, longitudinal modes
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24
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25
Lecture 17
Reflection and transmission of waves at an interface, Snell's law, critical angle, total internal reflection
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26
HW #5 due by 5pm in homework locker
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27
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28
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29
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30
Lecture 18
Corrections to Snell's law for a dissipative medium, transmission into a highly absorptive medium, reflected and transmitted field amplitudes, coefficient of reflection, region of total reflection
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31
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