L5_A
Coherent interference
Scattering
Light scattering
Spherical waves
Colors due to scattering
Sunset can be Green!
L5_B
Scattering
Check one direction at a time, far away
The mathematics of scattering
Scattered spherical waves → plane waves
Phase delays
Direction of coherent scattering
L5_CD
Scattering
Scattering
Coherent constructive scattering
Coherent destructive scattering: different angles
Direction of coherent scattering
Incoherent scattering: rough surface
Diffraction
L5_E
Grating Equation
L5_F
Diffraction
Incident angle vs. diffraction angle
Diffraction-grating dispersion
Diffraction orders
Real diffraction gratings
Any periodic surface is a diffraction grating
World’s largest diffraction grating
