Thought for the Day

1
Thought for the Day
2
Additional intro material

• Ive 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
• its 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
• www.physics.utoronto.ca/phy485/ModOpt
• due Tuesday 2 October

4
Study groups

• to get a bulk email of interested students,
  please email me LIKE THIS
• Subject JKL PHY485 Study
• no content in the body
• to those who email me, Ill send the whole list
  of email 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 Maxwells
• review of Maxwells 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