Madison Mariani

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Atmospheric Optics

• Madison Mariani

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Mechanisms
Scattering
Reflection
Refraction
Diffraction
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Newtons Theory of Light

• Geometric nature of laws of reflection/refraction
  could only be explained if light was made of
  particles (corpuscles)
• Prism Experiment
• Color wheel

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Huygens-Fresnel Principle

• The Wave Theory
• Christiaan Huygens
• Light is emitted in all directions as
  luminiferous ether
• Not affected by gravity ? slow down in denser
  mediums
• Augustin-Jean Fresnel
• Expanded
• Light was entirely transverse ( no wave
  components in direction of prepagation
• Huygens-Fresnel Principle
• Method of analyzing the wave propagation patters
  of light
• Secondary spherical waves in all directions

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Pierre De Fermat

• Fermats principle (principle of least time)
• The path taken between two points by a ray of
  light is the path that can be traversed in the
  least time

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Willebrord Snell

• Law of Refraction or Snells Law
• The ratio of sin(theta1)/sin(theta2) is the index
  of refraction
• Should go from a perfect vacuum

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Crepuscular Rays
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Sunsets
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Halos
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Sundogs
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Linings and Iridescence
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Rainbows
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Works Cited

• http//enlightenyourmind.net/History/huygens.html
• http//zonalandeducation.com/mstm/physics/light/ra
  yOptics/refraction/snellsLaw/snellsLaw1.html
• http//ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/h
  ome.rxml
• http//www.thestargarden.co.uk/NewtonAndLight.html
  
• http//hyperphysics.phy-astr.gsu.edu/hbase/phyopt/
  fermat.html