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Thread: Light In Slow Motion

  1. #1
    Flashaholic* Launch Mini's Avatar
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    Default Light In Slow Motion

    Found this today.
    Light travelling in slow motion. Seriously.
    I think this almost needs it's own thread here on CPF.
    http://www.wimp.com/trillionframes/

    1 Trillion frames per second.

  2. #2
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    Default Re: Light In Slow Motion

    Quote Originally Posted by Launch Mini View Post
    Found this today.
    Light travelling in slow motion. Seriously.
    I think this almost needs it's own thread here on CPF.
    http://www.wimp.com/trillionframes/

    1 Trillion frames per second.
    That's pretty amazing, thanks for sharing!
    Last edited by Empath; 08-01-2012 at 08:20 PM. Reason: Edited title to show new thread title

  3. #3

    Default Re: Light In Slow Motion

    Quote Originally Posted by Launch Mini View Post
    I think this almost needs it's own thread here on CPF.
    I think you're right.
    We're a light infatuated board. Such an amazing capability to study the target of our interest deserves it's own thread.
    I've moved it to its own thread in the Cafe.
    Last edited by Empath; 08-01-2012 at 08:20 PM.

  4. #4

    Default Re: Light In Slow Motion

    The render that they came up with when trying to look around the corner was amazingly accurate. The way I understand it, the distance of each returning photon's position can be mapped, then they can come up with a shape once put all together.

    I wonder if they can advance it enough where shining light into a devastated building could locate people. How cool would that be. There would be endless uses for the around the corner thing.

  5. #5
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    Default Re: Light In Slow Motion

    I'd love to see light in slow motion go through a reflector and all the photons bouncing around inside then slowly shoot into the hotspot.

  6. #6

    Default Re: Light In Slow Motion

    Has a lot of applications for non destructive testing, etc.

    The rest is a bit Sci-Fi though. Still, good work on the part of the builders.

  7. #7
    Flashaholic MedusaOblongata's Avatar
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    Lightbulb Imaging at a trillion frames per second

    I have no dinosaur in this orgy.
    "The problem with quotations on the internet is that there's no way to tell if they're authentic." - Abraham Lincoln

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    Flashaholic* Kilovolt's Avatar
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    Default Re: Imaging at a trillion frames per second

    Extremely interesting, thanks for sharing!

  9. #9

    Default

    Wow.... just wow!

  10. #10
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    Default

    That's awesome!

  11. #11
    Unenlightened
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    Default Re: Light In Slow Motion

    What puts this in perspective is that famous bullet through an apple "capture" where the bullet is exiting right and the shock wave is in the process of rupturing the apple ....
    THAT "movie" using the technic used for capturing these light images traveling down the coke bottle ...
    that bullet would take OVER ONE YEAR to play out. Truly AWESOME technologies with incredible potential to "see" stuff. What about the 4 to 8 seconds that a massive hydrogen bomb
    takes from initiation to termination of its full fusion event?

  12. #12
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    Default Light In Slow Motion

    Quote Originally Posted by Dave Youngman View Post
    What about the 4 to 8 seconds that a massive hydrogen bomb takes from initiation to termination of its full fusion event?
    Budget.

  13. #13
    Flashaholic* degarb's Avatar
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    Default Re: Light In Slow Motion

    The femto camera is incredible. But, maybe I am a troglodyte, or fail to grasp something; but, how could you see around corners in any situation other than total darkness?
    Some people are all lumens and no lux, while others are all lux and no lumens. Some just thank God they have neither.-- All of my lights have throw--some pretty darn far, into the garbage.

  14. #14
    Flashaholic* Launch Mini's Avatar
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    Default Re: Light In Slow Motion

    Quote Originally Posted by degarb View Post
    The femto camera is incredible. But, maybe I am a troglodyte, or fail to grasp something; but, how could you see around corners in any situation other than total darkness?
    I think that even in a lit room, the light still "bounces" back , and some can be measured. It is the objects defraction ( might be wrong word), that would change the amount of light being measured that would allow this to happen.
    Point your dim flashlight into the beam of a really bright flashlight. Your eyes cannot see that more light is hitting the target, but I am pretty sure you dim light is adding to the total amount of light. similar analogy. Might be a fractional amount returning from around the corner, but they can measure it.

  15. #15
    Flashaholic* Wrend's Avatar
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    Default Re: Light In Slow Motion

    Just use special LASER frequencies/pulses and look for those "signatures."

    In new radio control devices you can even "hide" and operate under the background noise level because the receivers know what to look for and can combine spread spectrum signals to receive a "brighter" signal.

    ...

    Keep in mind here guys that this is a compilation of many takes, so I don't think a live version would be available for quite some time, if ever. Still, might be useful if what you're looking at is stationary for long enough. On the other had, light travels very quickly, so you might be able to get off enough takes anyway, depending on what you're observing.

    None the less, it's very cool.
    Last edited by Wrend; 11-12-2012 at 02:29 PM.

  16. #16

    Default Re: Light In Slow Motion

    To paraphrasr J.B.S. Haldane:

    'Things are not stranger than you imagine, they are stanger than you can imagine'.

  17. #17
    Flashaholic* Wrend's Avatar
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    Default Re: Light In Slow Motion

    This doesn't seem strange to me. Just very imaginative, using technology in new and exiting ways.

    I especially like how they have to "correct" for relativistic (and maybe quantum?) mechanics to get a "normal" reflection image off the table.
    Last edited by Wrend; 11-12-2012 at 02:35 PM.

  18. #18
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    Default a cool vid... maybe a little late but worth watching for those that haven't seen it.

    http://www.youtube.com/watch?v=Y_9vd...&feature=share

    watch a pulse of light as it travels at a trillion frames per second.
    Last edited by taiji; 09-23-2013 at 04:33 PM.
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