1. Thought for the Day

2. Additional intro material
I’ve posted on the course website an additional PowerPoint series: a survey of the electromagnetic spectrum
it shows and talks about all kinds of ‘light’, from radio to gamma rays
it’s show-and-tell style, a bit long for class but quite interesting
please look at it in the next week

3. Problem Set #1 will go out by email all ROSI-registered emails
wil be posted on website:
due Tuesday 2 October

4. Study groups
to get a bulk of interested students, please me LIKE THIS:
Subject: JKL PHY485 Study
no content in the body
to those who me, I’ll send the whole list of addresses of interested people (circulate your addresses)
feel free to organize at end of class, those who wish still to join in

5. Today… waves, linearity of wave equation review of Maxwell’s
review of Maxwell’s equations in media
wave equation in dielectric and conducting media
dispersion relation for plane waves
complex dielectric function, index of refraction
Lorentz model for dielectric function