Summary

• Adding waves of different v
• Fourier analysis
• Bandwidth, coherence length

• Interferometer overview
• wavefront splitting
• amplitude splitting






• Young's two-source applet and a second applet
  
• PhET applet
• water waves video
• I = 4I₀cos²(α) irradiance pattern (eq. 9.31), where α = ½ ka sin(θ)  (p.458)
• In-class 9.5