Chromosphere population inversion?

Click For 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
Messages
1
Reaction score
0
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?
 
Astronomy news on Phys.org
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.
 
"Pop III stars are thought to be composed entirely of helium and hydrogen with trace amounts of lithium, the ingredients left over after the Big Bang. They formed early on, around 200 million years after the universe began. These stars are extremely rare because they died out long ago, although scientists have hoped that the faint light from these distant, ancient objects would be detectable. Previous Population III candidates have been ruled out because they didn't meet the three main...

Similar threads

Replies
2
Views
2K
  • · Replies 35 ·
2
Replies
35
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 12 ·
Replies
12
Views
3K
Replies
3
Views
7K
  • · Replies 3 ·
Replies
3
Views
4K
Replies
18
Views
2K
  • · Replies 51 ·
2
Replies
51
Views
4K
Replies
9
Views
2K
  • · Replies 53 ·
2
Replies
53
Views
9K