Physics 942: Electromagnetic Theory II, Fall 2016

This web page: http://mhd.sr.unh.edu/~jraeder/PHYS942-F2016.html

Topics:

  • waves
  • waveguides/cavities
  • radiation/antennas
  • scattering
  • special relativity/4-vector notation
  • conservation laws
  • Lagrangian/Hamiltonian for fields and particles
  • Radiation from moving charges

Prerequisites:

Enrollment in a CEPS graduate program or by permission.

Instructor:

Prof. Joachim (Jimmy) Raeder
Space Science Center
University of New Hampshire
8 College Road
Durham, NH 03824-3525
Office: 245G Morse Hall
Phone: 603-862-3412
Fax: 603-862-3584
E-Mail: J.Raeder@unh.edu
Web: Physics Department EOS page Research page

Venue:

MWF, 11:10 - 12:00 251 DeMeritt

Communication:

Via e-mail and through this web page. Check often.

Office Hours:

T, 10-12am, or by appointment.

Textbooks:

  • J. D. Jackson, Classical Electrodynamics, Third Edition, Wiley, 1999 (primary)
  • F. Melia, Electrodynamics (secondary text; modern, very compact, good to read if you have already basic knowledge)
  • J. M. Charap, Covariant Electrodynamics (secondary text; modern, compact, everything in 4-vector notation, which is much cleaner than vector algebra)

Other texts:

'Backups'

  • D. J. Griffiths, Introduction to Electrodynamics,Prentice, 1999 (still worth looking into, but never goes as deep as Jackson)
  • A. Zangwill, Modern Electrodynamics, Cambridge, 2013 (New, possible Jackson replacement, better readable, but even shallower on relativity than Jackson)

'Classics'

  • Landau & Lifshitz, Electrodynamics of Continuous Media (classic, Jackson-like, old notations)
  • M. Schwartz, Principles of Electrodynamics (moderately modern, easy to read but leaves out a few things)
  • A. Shadowitz, The Electromagnetic Field (mostly statics)
  • Panofsky and Phillips, Classical Electricity and Magnetism (Jackson-like, less clearly written)
  • G. Owen, Introduction to Electromagnetic Theory (old, incomplete, funny hand-drawn graphics)

'Relativity first'

  • C. A. Brau, Modern Problems in Classical Electrodynamics (good to read, fairly comprehensive)
  • A. O. Barut, Electrodynamics and Classical Theory of Fields and Particles (difficult to read)

For Students with Disabilities:

Students who require some accommodation by the instructor because of a disability must contact as early as possible the instructor and document the disability through the ACCESS Office. Any requests for special considerations relating to attendance, pedagogy, homework, etc., must be discussed with and approved by the instructor. In cooperation with the DRC, course materials can be provided in alternative formats (for example, large print, audio, diskette, or Braille). (ACCESS Office, 118 Memorial Union Building, Voice/TTY: 603-862-2607 Fax: 603-862-4043.)

Your academic success in this course is very important to me. If, during the semester, you find emotional or mental health issues are affecting that success, please contact the University’s (http://www.unhcc.unh.edu/) Counseling Center (3rd floor, Smith Hall; 603 862-2090/TTY: 7-1-1), which provides counseling appointments and other mental health services.

Grading:

  • Homework: 20%
  • midterm 2: 30%
  • Final: 50%

Due dates will be announced with the homework and posted on this site. Homework must either be handed in during class or dropped off into the mailbox in front of my office (245G Morse). Homework that is not turned in by the due date will lose 10 points, after 1 weeks 30 points, and after 2 weeks it will no longer be accepted. I mean it! Make sure to write your name on each sheet that you turn in. A note on cheating: The solutions to many textbook problems can now be found on the web, so it is very tempting to copy those solutions. However, if you can find them, I can find them. Also beware that some of these solutions have errors or inaccuracies that make them easy to spot! If I suspect that a solution has been copied I will give zero points. It is then up to the student to show me that her/his solution is original.

All assignments can be done in groups of at most 3 students. Group work is encouraged. Write down the names of your group partners at the top of the first sheet of your submission. If you work in a group, turn in only one copy!

Tentative schedule:

Mon, 2016-08-29 Intro, stress tensor
Wed, 2016-08-31 Poynting flux, momentum (Jackson 6.6-9) Homework: F2016-hw01.pdf
Fri, 2016-09-02 OFF/comp

Mon, 2016-09-05 OFF/L-day
Wed, 2016-09-07 Plane waves (Jackson 7.1-2)
Fri, 2016-09-09 Reflection/Refraction (Jackson 7.3)

Mon, 2016-09-12 Reflection/Refraction/Polarization(Jackson 7.4) Homework: F2016-hw02.pdf
Wed, 2016-09-14 Dispersion, plasma frequency(Jackson 7.5)
Fri, 2016-09-16 resonant absorption, ionosphere(Jackson 7.8)

Mon, 2016-09-19 group velocity(Jackson 7.3)
Wed, 2016-09-21 Magnetized plasma waves (Jackson 7.6)
Fri, 2016-09-23 Waveguides (Jackson 8.1)

Mon, 2016-09-26 Cylindrical guides (Jackson 8.2)
Wed, 2016-09-28 TE/TM modes (Jackson 8.3-4) Homework: F2016-hw03.pdf
Fri, 2016-09-30 Energy flow in waveguides (Jackson 8.5)

Mon, 2016-10-03 cavities (Jackson 8.7-8)
Wed, 2016-10-05 Radiation (Jackson 9.1)
Fri, 2016-10-07 Electric dipole radiation (Jackson 9.2)

Mon, 2016-10-10 Magnetic dipole and electric quadrupole radiation (Jackson 9.3)
Wed, 2016-10-12 OFF
Fri, 2016-10-14 Center dipole antenna (Jackson 9.4) Homework: F2016-hw04.pdf

Mon, 2016-10-17 OFF/travel
Wed, 2016-10-19 OFF/travel
Fri, 2016-10-21 OFF/travel

Mon, 2016-10-24 Rayleigh Scattering (Jackson 10.1)
Tue, 2016-10-25 MIDTERM-->18:40-21:30
Wed, 2016-10-26 Thompson scattering (Jackson 14.8)
Fri, 2016-10-28 Special relativity, time dilation, space contraction (Jackson 11.1-2, Griffiths 12.1)

Mon, 2016-10-31 Lorentz transformation (Jackson 11.3, Griffiths 12.1) Homework: F2016-hw05.pdf
Wed, 2016-11-02 Velocity addition (Jackson 11.4)
Fri, 2016-11-04 relativistic momentum and energy (Jackson 11.5)

Mon, 2016-11-07 OFF/travel
Wed, 2016-11-09 OFF/travel
Fri, 2016-11-11 OFF/travel

Mon, 2016-11-14 co/contra variant vectors (Jackson 11.6, Charap 2.1 - 2.10)
Wed, 2016-11-16 metric tensor, Space-Time (Jackson 11.6, Charap 2.x)
Fri, 2016-11-18 Matrix formulation (Jackson 11.7)

Mon, 2016-11-21 Field covariance (Jackson 11.9)
Wed, 2016-11-23 OFF/T-day
Fri, 2016-11-25 OFF/T-day

Mon, 2016-11-28 Field transformation (Jackson 11.10)
Wed, 2016-11-30 Conservation laws (Jackson 12.10, Melia 5.5)
Fri, 2016-12-02 Relativistic particle-field Lagrangian/Hamiltonian (Jackson 12.1, Melia 6.1-2)

Mon, 2016-12-05 Field Lagrangian, MW eq from Lagrangian (Jackson 12.1, Melia 6.3)
Wed, 2016-12-07 Lienard-Wiechert potentials (Jackson 14.1, Melia 7.1-2)
Fri, 2016-12-09 Radiation from moving charge, synchrotron radiation (Jackson 14.2, Melia 7.3)