Slashdot Mirror


Highly Directional Terahertz Laser Demonstrated

eldavojohn writes "A new paper published this week in the journal Nature Materials announces a successful demonstration of highly directional terahertz semiconductor lasers. You might not think it's a big deal that some Harvard and University of Leeds researchers (funded partially by the US Air Force) figured out how to better direct lasers; but this means the ability to see what's in someone's pockets and clothing, at a distance of possibly hundreds of meters, or farther. The big benefit is that they are lower in energy than X-Rays and are less invasive, since they cannot pass through water or metal. Coming soon to an airport near you or buzzing around on board a drone in civilian airspace?"

17 of 125 comments (clear)

  1. Plus flying cars? by mangu · · Score: 3, Funny

    The Wired article has a sidebar with "Featured Articles", one of them is "Flying Cars are Coming".

    Does this tell anyone about how soon this laser will have real world applications?

  2. In related news... by fahrbot-bot · · Score: 2, Funny

    The big benefit is that they are lower in energy than X-Rays and are less invasive, since they cannot pass through water or metal.

    ...sharks disappointed.

    --
    It must have been something you assimilated. . . .
    1. Re:In related news... by Surt · · Score: 2, Funny

      Not the sharks with frickin' jetpacks.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    2. Re:In related news... by Shark · · Score: 2, Funny

      There's a jetpack? I didn't get the memo...

      --
      Mind the frickin' laser...
  3. Oh God by CasualFriday · · Score: 3, Funny

    So now airport security officers can see my genitals from hundreds of feet away?

    --
    Raters gon' rate.
    1. Re:Oh God by EdIII · · Score: 4, Funny

      So now airport security officers can see my genitals from hundreds of feet away?

      Even with that technology, I still don't think we will be able to find your genitalia. Sorry.

    2. Re:Oh God by Beardo+the+Bearded · · Score: 5, Funny

      Dude, I'm 33 years old. I'm married and I've got two kids.

      It has been years since anyone has been interested in my genitals, and I kind of miss the attention.

      --

      ---
      ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
    3. Re:Oh God by CasualFriday · · Score: 2, Funny

      This is unbelievably depressing. also, I love how there is a button at the bottom of your post that says "parent".

      --
      Raters gon' rate.
    4. Re:Oh God by ShadowRangerRIT · · Score: 3, Funny

      Given that even water would deflect these lasers, peeing yourself should be a sufficient means of blocking them.

      --
      $_ = "wftedskaebjgdpjgidbsmnjgcdwatb"; tr/a-z/oh, turtleneck Phrase Jar!/; print
    5. Re:Oh God by Anonymous Coward · · Score: 1, Funny

      Well, that's a relief.

  4. so it does not work with sharks? by Joe+The+Dragon · · Score: 5, Funny

    so it does not work with sharks?

  5. Re:"Less invasive than X-rays" by Anonymous Coward · · Score: 3, Funny

    I give you a hint; There is not much sunshine.

    My butthole emits blinding white rays of heavenly light you insensitive clod!

  6. Business opportunity! by tomhudson · · Score: 2, Funny

    Since it won't pass through metals, quick, someone patent the tin-foil bra!

    Oops, too late, now it's in the public domain :-)

  7. Re:Bogus info from Tired by Surt · · Score: 4, Funny

    So your claim is that the TSA cares enough about passenger wellfare to not plasmify their customers? I think you underestimate their devotion to providing a comfortable, pleasant travel experience.

    --
    "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
  8. Re:PSA by Anonymous Coward · · Score: 1, Funny

    Don't THz me, bro!

  9. Watch out for perverts. by Mr2cents · · Score: 4, Funny

    With all those perverts around, my advice to beautiful women is to keep your T-shirt wet at all times.

    --
    "It's too bad that stupidity isn't painful." - Anton LaVey
  10. Is that a banana in your pocket or are you... by gearsmithy · · Score: 2, Funny

    oh wait, it is a banana