Chromosphere population inversion?

AI Thread Summary
The discussion explores the theoretical possibility of creating a resonant chamber in the chromosphere using mirrors to produce laser radiation. It questions the feasibility of achieving population inversion necessary for laser action, suggesting that heat-induced excitation may not lead to this condition. A participant highlights that a significant length of the chromosphere could naturally facilitate this process without mirrors, given its density and time-scale considerations. The conversation emphasizes the complexities of stimulating light emission in such an environment. Overall, the viability of laser radiation in the chromosphere remains uncertain due to the challenges of achieving population inversion.
jabowery
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Assuming you could put two mirrors (one half-silvered) into the chromosphere, stationary, without them vaporizing/warping..., could they form a resonant chamber and produce laser radiation?
 
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Interesting. Can you elaborate on what makes you think this is possible? What would you be stimulating to emit the light?
 
I would expect that the excitation happens via heat, in that case I would not expect a population inversion.

Another interesting thing: As a rough estimate, you can draw a straight line of ~3000km length through the chromosphere (nearly parallel to the surface of the sun). For the time-scale of 10ms and an area density of O(g/cm^2), you already have this situation without mirrors.
 
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