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Author Topic: US Physicists create curved lasers...  (Read 748 times)

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Offline VekseidTopic starter

US Physicists create curved lasers...
« on: April 15, 2009, 06:54:33 AM »
...and all they can think of is using them as lightning rods.

Quote
...

The intensity profile of a normal laser beam is symmetrical around a central intense region, but the mask and lens are specially designed to impose an unusual asymmetric intensity profile, creating a so-called Airy beam. On the right-hand side of the Airy beam there is one intense bright region, and there is a series of smaller, less intense regions to the left (see image).

As the pulse moves away from the lens, energy flows between the different intensity regions. Because of the underlying asymmetry, the beam bends around 5 millimetres to the right over its 60-centimetre measured length. That's not enough to send the beams around sharp corners, but they could be guided around objects, such as cells, in microscopic applications.

...

Not exactly a sharp curve, but it's one of those "WTF, cool!" moments.
« Last Edit: April 18, 2009, 05:28:19 PM by Vekseid »

Offline The Overlord

Re: US Physicists create curved lasers...
« Reply #1 on: April 15, 2009, 05:26:57 PM »

That is cool, but give it time; that's the sort of innovation that will get multiple applications.

Offline Inkidu

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Re: US Physicists create curved lasers...
« Reply #2 on: April 15, 2009, 05:44:45 PM »
And we still don't have lightsabers? Science's priorities are so off. <.<

Offline Rhapsody

Re: US Physicists create curved lasers...
« Reply #3 on: April 17, 2009, 10:10:28 PM »
...and all they can think of is using them as lightning rods.

I'm inclined to think they've certainly thought of more things to do with curved lasers, but they don't want to panic the public with their mad plans for world domination.

Offline Inkidu

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Re: US Physicists create curved lasers...
« Reply #4 on: April 18, 2009, 04:21:08 PM »
Just think the Death Star could have shot around Yavin 4 and hit the moon with no problem!

Offline Sabby

Re: US Physicists create curved lasers...
« Reply #5 on: April 19, 2009, 10:42:07 AM »
so now round rooms can be illuminated... hurray for science.

Offline Ordell

Re: US Physicists create curved lasers...
« Reply #6 on: April 21, 2009, 01:33:36 AM »
It's actually a pretty cool thing and a huge advancement in potential medical use in the future.  Who knows, that small curve may just make something potentially unreachable, reachable now.

Offline Mnemaxa

Re: US Physicists create curved lasers...
« Reply #7 on: April 21, 2009, 01:38:45 AM »
As a matter of fact, they already have used it in tests to fire a laser around 'cells' to strike cells behind the obscuring cells.  They could treat injuries, possibly even cancer cells inside muscles, lymph nodes, and other problems obscured by healthy tissue without cutting or damaging healthy tissue to get at the bad.

Offline Rhapsody

Re: US Physicists create curved lasers...
« Reply #8 on: April 21, 2009, 01:51:08 PM »
That would be an awesome step in treating a lot of diseases and conditions.  My grandmother died of cancer a few years ago; I'm all for anything that helps make the disease more of a curable illness than a life-threatening concern.

Offline Merlyn

Re: US Physicists create curved lasers...
« Reply #9 on: April 21, 2009, 10:57:57 PM »
Heck forget the lightsabers, maybe they can make the light whips soon.