Why does glass not permit long wavelength infrared to pass through?

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SUMMARY

Glass generally does not allow long wavelength infrared radiation to pass through due to its material properties, specifically the molecular structure and bonding characteristics. However, fused silica is an exception, as it can transmit long wavelength infrared effectively. Understanding this phenomenon requires knowledge of solid state physics and the quantum theory of materials. For further insights, resources such as the FAQ in the General Physics forum and specific studies on fused silica properties are recommended.

PREREQUISITES
  • Solid state physics fundamentals
  • Quantum theory related to material properties
  • Understanding of photon behavior in solids
  • Knowledge of optical materials, specifically fused silica
NEXT STEPS
  • Research the optical properties of fused silica
  • Study the quantum mechanics of photon interactions with solids
  • Explore the FAQ on photon speed through solids in the General Physics forum
  • Investigate applications of fused silica in infrared optics
USEFUL FOR

Physicists, materials scientists, optical engineers, and anyone interested in the interaction of light with materials, particularly in the context of infrared applications.

quantum123
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Why does glass not permit long wavelength infrared to pass through?
 
Science news on Phys.org
Certain glass (fused silica) can!

You might want to start by reading the FAQ in the General Physics forum. The entry on photon speed through a solid might be relevant.

Zz.
 
So there is no classical explanations but you need to invoke quantum theory?
 
No, you need to invoke the property of the material! And that will require knowledge of solid state physics.

Zz.
 
ZapperZ said:
Certain glass (fused silica) can!

You might want to start by reading the FAQ in the General Physics forum. The entry on photon speed through a solid might be relevant.

Zz.
can give me an idea about the properties of fused silica
 

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