Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Paint the upper atmosphere...






mfo

mfo

0
Joined
Jul 3, 2009
Messages
3,394
Points
0
I wonder if it can light matches!

J/K. Awesome laser though.
 
Benm

Benm

0
Joined
Aug 16, 2007
Messages
7,896
Points
113
It can't even light a match as a complete system because the beam is expanded to a huge diameter to keep divergence acceptable. The laser before the output telescope would be great though, 4 watts of very pretty orange light - its the sodium line we all know from those orange streetlights.

I suppose these lasers must be very difficut/expensive to construct or operate as you never see them outside astronomy, while their color woud be very desireable for show purposes and such.
 
bobhaha

bobhaha

0
Joined
May 31, 2009
Messages
3,239
Points
63
HOLLY CRAP thats awesome! here is some info, you might of missed!

ESO astronomers have been able to create an 'artificial star' 90 km high in the atmosphere, using a laser beam. This star can be put at any point in the sky, and it enables the adaptive optics of the VLT telescope to be used throughout the visible sky. Until now, adaptive optics required the light of a strong natural star as a reference; now, the artificial star will do this. The new technology enlarges the field of vision of the most powerful telescope on Earth
 
Tabish

Tabish

0
Joined
Aug 30, 2009
Messages
689
Points
0
That's sick!!! Never knew about adaptive optics. Pretty high-tech stuff there.
 
phoenix77

phoenix77

0
Joined
Apr 1, 2008
Messages
3,924
Points
0
Maybe this technology has been in use for some time now, & has been the reason for a lot of "UFO" sightings. If they are able to accomplish this without the lasers 'beam' being visible, it would sure explain a lot of the "UFO" sightings that look like dancing lights in the sky. IDK, just thinkin' while typin' LOL..........rob
 
Helioplasma

Helioplasma

0
Joined
Nov 2, 2007
Messages
536
Points
18
That is one heck of a system. Three minutes twenty for very pretty yellow thin beams.. Wow !! I never thought it could be that useful for astronomy.
 
You must log in or register to reply here.




Top