#  Interference and Diffraction 

 



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### Newton's Rings

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Circular interference pattern formed between spherical and flat glass plates.  
  
\[[In-Depth Description](/presentations/newtons-rings)\]

### Thin Film Interference

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Interference patterns on soap films or oil slick.  
  
\[[In-Depth Description](/presentations/thin-film-interference)\]

### Gold Mirror

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Thin gold-film interference selects spectral bandwidth.

### Michelson Interferometer

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The classic application of spatial coherence lengths.  
  
\[[In-Depth Description](/presentations/michelson-interferometer)\]

### Fabry-Perot Etalon

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The most common multiple-beam interferometer.

### Hear the Wall Bend

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A room size laser interferometer with audio signal output.  
  
\[[In-Depth Description](/presentations/hear-wall-bend)\]

### Adjustable Single Slit

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Diffraction pattern changes with slit aperture.

### Slit Diffraction

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Single or multiple slit diffraction patterns with laser.

\[[In-Depth Description](/presentations/slit-diffraction)\]

### Edge Diffraction

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Schlieren optics is used to demonstrate the diffraction of light around objects; more simply done with razor blade and laser or white light source.  
  
\[[In-Depth Description](/presentations/edge-diffraction)\]

### Diffraction Gratings

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Hand held transmission gratings or large reflection grating.

### Two-Dimensional Interference

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Various two-dim gratings, apertures, Fresnel zone plates, opaque objects, and edges.

### Laue Optical Analog

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2-Dim interfernce pattern as optical analog of x-ray diffraction; spinning the grating simulates polycrystaline ring patterns.

### Laser Diffraction Off Ruler

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Machinist's scale used as reflective grating.

### Single Photon Interference

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Wave/particle duality observed in Young's double slit experiment with camera sensitive to individual photons.  
  
\[[In-Depth Description](/presentations/single-photon-interference)\]

### Poisson's Spot

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Diffraction produces a bright spot where Poisson believed there would be darkness.

\[[In-Depth Description](/presentations/poissons-spot)\]

### Microwave Interference

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Young's double slit interference using microwaves.

### Contact Us

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