The EM Spectrum (11:40)
Characterizing EM Waves by frequency with observations of how wavelength and wave speed change as light passes through transparent materials.
Interference of Light (3:57)
Overview of the interference of two electromagnetic waves and the concepts of fully constructive and destructive interference
Young's Double Slit Experiment (9:01)
Demonstrations of two-slit interference
Young's Double Slit Explanation (17:44)
Explanation of the interference pattern for 2 slit interference and the conditions for constructive and destructive interference
Diffraction Grating (8:38)
Interference from multi-slit diffraction gratings, and the application to optical spectroscopy
Thin-Film Interference, part 1 (20:47)
Discussion of the interference of light reflected off of a thin soap film, including possible phase shifts at boundaries
Thin-Film Interference, part 2 (11:28)Discussion of the interference of light reflected off a coating applied to glass, including possible phase shifts at boundaries
Single Slit Diffraction (7:11)
Diffraction patterns from a single slit
Circular Aperture Diffraction (11:33)
Diffraction patterns from a circular arpeture