Understanding Light Absorption in Glass: Impact on Laser Beam Penetration

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SUMMARY

The discussion focuses on the absorption of visible light by soda lime glass and its impact on laser beam penetration. It highlights that soda lime glass has a specific transmission spectrum that determines how much light is absorbed. To completely stop a laser beam in the visible spectrum, a significant thickness of glass is required, although the exact amount varies based on the laser's wavelength and power. The conversation emphasizes the need for precise measurements and understanding of the material properties of glass.

PREREQUISITES
  • Understanding of soda lime glass properties
  • Knowledge of laser beam characteristics
  • Familiarity with light transmission and absorption concepts
  • Basic principles of optics
NEXT STEPS
  • Research the transmission spectrum of soda lime glass
  • Explore the relationship between laser wavelength and material absorption
  • Investigate the effects of glass thickness on laser beam intensity
  • Learn about different types of glass and their optical properties
USEFUL FOR

Optical engineers, physicists, and anyone involved in laser technology or materials science will benefit from this discussion.

Danyon
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How much or what percentage of visible light is absorbed by glass, and how much glass would it take to completely stop a laser beam in the visible spectrum?
 
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Danyon said:
How much or what percentage of visible light is absorbed by glass, and how much glass would it take to completely stop a laser beam in the visible spectrum?
Have you looked at the wikipedia page for soda lime glass? It shows a typical transmission spectrum for said glass.
 
Danyon said:
how much glass would it take to completely stop a laser beam in the visible spectrum?
A lot. Such a vague question can only have a vague answer.
 
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