Understanding Specular Reflection: QED Explanation & Material Differences

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SUMMARY

The discussion centers on the QED (Quantum Electrodynamics) explanation for specular reflection of light and the material properties that influence this phenomenon. Participants highlight that while photons can be emitted in various directions upon interaction with electrons, specular reflection is distinct due to the coherent nature of light waves. Mercury (Hg) is noted for its superior specular reflection capabilities, attributed to its electron configuration and surface smoothness. Richard Feynman's book "QED" is recommended as a comprehensive resource for understanding these concepts in depth.

PREREQUISITES
  • Understanding of Quantum Electrodynamics (QED)
  • Knowledge of photon-electron interactions
  • Familiarity with the principles of light reflection
  • Basic concepts of material properties affecting light behavior
NEXT STEPS
  • Read Richard Feynman's book "QED" for detailed insights on light behavior
  • Research the electron configuration of materials and its impact on light reflection
  • Explore the physics of coherent light waves and their role in specular reflection
  • Investigate the surface properties of metals like mercury that enhance specular reflection
USEFUL FOR

Physicists, materials scientists, and students interested in the principles of light reflection and quantum mechanics.

DanP
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What is the QED explanation for specular reflection of light ?

I mean, if photons interact with electrons, and a photon is re-emitted, I assume it can be emitted in any direction whatsoever. So this might work great for diffuse reflections. But what about specular reflections? How are they accounted for ?

Also, what makes material different in terms of how well they do speculary reflect light ? For example why Hg makes such a great specular reflector ?
 
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Feynman's book "QED" will supply answers to your questions.
 
mathman said:
Feynman's book "QED" will supply answers to your questions.

Guess then Ill wait till I finish the the book to satisfy my curiosity =)
 

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