Light - Black-bodies & Spontaneous / Stimulated Emission.

AI Thread Summary
Black-body radiation is primarily the result of spontaneous emission, with stimulated emission playing a minor role. In the context of the Sun, black-body radiation arises from the high temperatures and pressures that facilitate spontaneous photon emission. Everyday objects emit infrared radiation due to their temperature, which is also attributed to spontaneous emission. The distinction between black-body radiation and spontaneous emission lies in the nature of the processes involved, with black-body radiation being a statistical distribution of emitted photons across a spectrum. For a deeper understanding, further resources are recommended to clarify these concepts.
EspressoDan
Messages
13
Reaction score
3
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
 
Science news on Phys.org
Thread 'Simple math model for a Particle Image Velocimetry system'
Hello togehter, I am new to this forum and hope this post followed all the guidelines here (I tried to summarized my issue as clean as possible, two pictures are attached). I would appreciate every help: I am doing research on a Particle Image Velocimetry (PIV) system. For this I want to set a simple math model for the system. I hope you can help me out. Regarding this I have 2 main Questions. 1. I am trying to find a math model which is describing what is happening in a simple Particle...
Thread 'How to model converging illumination through object plane (in ZEMAX)'
Hello community, I'm designing a projection lens system for a 35mm film projector in Zemax OpticStudio and struggling with the correct sequential mode setup for the illumination geometry. The light source is a Xenon short-arc lamp reflected by an ellipsoid mirror, which creates a converging cone with a 40.6 degree full angle that passes through the film gate. The film gate is my object plane, but the light doesn't diverge from it like a typical Lambertian source. Instead, the converging...
Back
Top