Any natural 400nm lasers in space?

Hi:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?


Thanks,

Radium

Radium wrote:
Hi:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?


Thanks,

Radium

CO2 is the dielectric in IR sources on Venus and Mars.

Some place where nitrogen (337 nm) at low pressure
can be excited by a plasma like lightning would be a good
candidate for UV. I wouldn't wager aginst the natural occurance
of those conditions even if the light isn't discovered yet.

Sue...

Sue... wrote:
Radium wrote:
Hi:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?


Thanks,

Radium

CO2 is the dielectric in IR sources on Venus and Mars.

Some place where nitrogen (337 nm) at low pressure
can be excited by a plasma like lightning would be a good
candidate for UV. I wouldn't wager aginst the natural occurance
of those conditions even if the light isn't discovered yet.

Sue...

Is it most likely these these lasers are pumped by nuclear-fusion that
powers stars?

On 13 Sep 2006 13:14:55 -0700, "Radium" wrote:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?

The only natural UV laser I've heard of is around Eta Carina, with a
dual band emission believed to be caused by FeII lasing (250.7/250.9
nm). I don't know of anything down around the visible-near UV range
you're interested in.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

Radium wrote:
Sue... wrote:
Radium wrote:
Hi:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?


Thanks,

Radium

CO2 is the dielectric in IR sources on Venus and Mars.

Some place where nitrogen (337 nm) at low pressure
can be excited by a plasma like lightning would be a good
candidate for UV. I wouldn't wager aginst the natural occurance
of those conditions even if the light isn't discovered yet.

Sue...

Is it most likely these these lasers are pumped by nuclear-fusion that
powers stars?

I didn't say that they exist, to our knowledge so can't
speculate how they would be pumped.

Nitrogen is a bit scarce at the nearest natural fusion facility to
my house. Here are concentrations for what is there.

http://csep10.phys.utk.edu/astr162/l...mposition.html

Actually I was recalling an ancient 'Amateur Scientist' project
in 'Scientific American" for an atmospheric nitrogen laser.
http://www.google.com/search?hl=en&q...oogle+S earch
The components are so minimal the configuration could
easily exist naturally.

So it probably exist in terrestrial lightning but isn't observed
because the coherent components are masked by the random
components broadning the observed spectra.

Sue...

"Sue..." wrote:

Radium wrote:
Sue... wrote:
Radium wrote:
Hi:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?


Thanks,

Radium

CO2 is the dielectric in IR sources on Venus and Mars.

Some place where nitrogen (337 nm) at low pressure
can be excited by a plasma like lightning would be a good
candidate for UV. I wouldn't wager aginst the natural occurance
of those conditions even if the light isn't discovered yet.

Sue...

Is it most likely these these lasers are pumped by nuclear-fusion that
powers stars?

I didn't say that they exist, to our knowledge so can't
speculate how they would be pumped.

Nitrogen is a bit scarce at the nearest natural fusion facility to
my house. Here are concentrations for what is there.

http://csep10.phys.utk.edu/astr162/l...mposition.html

Actually I was recalling an ancient 'Amateur Scientist' project
in 'Scientific American" for an atmospheric nitrogen laser.
http://www.google.com/search?hl=en&q...oogle+S earch
The components are so minimal the configuration could
easily exist naturally.

That is exactly the article that comes to my mind. Eons ago!
But a great article.




So it probably exist in terrestrial lightning but isn't observed
because the coherent components are masked by the random
components broadning the observed spectra.

Sue...

Radium wrote:
Sue... wrote:
Radium wrote:
Hi:

Have scientists discovered any natural lasers in space that emit light
solely at a wavelength of 400 nanometers ["black" light]?


Thanks,

Radium
CO2 is the dielectric in IR sources on Venus and Mars.

Some place where nitrogen (337 nm) at low pressure
can be excited by a plasma like lightning would be a good
candidate for UV. I wouldn't wager aginst the natural occurance
of those conditions even if the light isn't discovered yet.

Sue...

Is it most likely these these lasers are pumped by nuclear-fusion that
powers stars?

CO2 lasers (10u IR) are observed on both Mars and Venus,
an they are pumped by solar energy.

Paul