Light - Black-bodies & Spontaneous / Stimulated Emission.

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SUMMARY

Black-body radiation is primarily the result of spontaneous emission, with stimulated emission playing a minor role. The Sun's radiation exemplifies this phenomenon, where the majority of emitted photons arise from spontaneous processes. Everyday objects emit infrared radiation due to their temperature, which is also attributed to spontaneous emission. Understanding the distinction between black-body radiation and spontaneous emission is crucial for grasping the underlying physics.

PREREQUISITES
  • Understanding of black-body radiation principles
  • Knowledge of spontaneous and stimulated emission processes
  • Familiarity with thermodynamics and temperature effects on radiation
  • Basic concepts of quantum mechanics
NEXT STEPS
  • Research the Planck's Law of black-body radiation
  • Learn about the role of spontaneous emission in quantum mechanics
  • Explore the differences between spontaneous and stimulated emission
  • Study the applications of black-body radiation in thermal imaging
USEFUL FOR

Physicists, students of thermodynamics, and anyone interested in the principles of radiation and quantum mechanics will benefit from this discussion.

EspressoDan
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Hello,

I have a short question:

In relation to the Sun - is Black-body radiation ultimately the result of a combination of spontaneous (majority) and stimulated (minority) emission of photons?
In relation to the IR emissions from everyday objects due to their temperature - is Black-body radiation from the result of spontaneous emission?

If not, could somebody point me to a good description of why Blackbody radiation and Spontaneous emission are ultimately different? The internet is confused on the issue.

Thank you for any answers.

Dan
 
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