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World's Newest, Most Powerful Laser Comes Online

deglr6328 writes "The OMEGA EP laser at the University of Rochester's Laboratory for Laser Energetics was dedicated today at the Robert L. Sproull Center for Ultra High Intensity Laser Research. The new laser, which has been in design since ~2002 will, at 1 kilojoule per 1 picosecond pulse, be the highest energy petawatt-scale laser ever created by far. For a fleeting fraction of a second, it will deliver a beam of infrared light at 1054 nm that is more powerful than the total energy consumption of all human activity on the planet, to a tiny spot the size of the head of a pin. Previous petawatt scale lasers such as the one created at Lawrence Livermore labs in the late '90s and (dismantled in 1999) were capable of only several hundred joules per pulse. The new OMEGA EP laser will be able to manifest power densities sufficient to examine Unruh and Hawking radiation-like phenomena in the laboratory and will have the capability to directly produce nuclear reactions through ultra high electric field initiated photodisintegration."

110 comments

  1. needs more shark by Anonymous Coward · · Score: 2, Funny

    wheres the most powerful shark, step on up!

  2. Hmm by FiestaFan · · Score: 0, Offtopic

    For a fleeting fraction of a second, it will deliver a beam of infrared light at 1054 nm that is more powerful than the total energy consumption of all human activity on the planet, to a tiny spot the size of the head of a pin.

    Ok, but can it kill and fit in my hand?

  3. Don't be too proud... by nurhussein · · Score: 4, Funny

    ...of this technological terror you've constructed. The ability to generate a 1 kilojoule per 1 picosecond pulse is insignificant, next to the power of a good Slashdotting.

    1. Re:Don't be too proud... by aerthling · · Score: 3, Funny

      Perhaps one day ISPs will be able to capture that energy and use it to power their data centers. It would be green energy in more ways than one! ;)

    2. Re:Don't be too proud... by tcc · · Score: 1

      If he uses a frequency doubling crystal on his laser, it becomes 532nm, so what would make it green too :)

      Assuming there's a crystal supporting such a hit.

      On the other hand I wonder how they've managed to get around air ionization... for far less energy then that, air ionize and it creates a mirror effect that sometimes bounces the beam back in the system and crack something in the optical system (usually the crystal)

      --
      --- Metamoderating abusive downgraders since my 300th post.
    3. Re:Don't be too proud... by exploder · · Score: 2

      Operate it in a vacuum.

      --
      Yo dawg, I heard you like the Ackermann function, so OH GOD OH GOD OH GOD
  4. oblig by owlnation · · Score: 3, Funny

    to a tiny spot the size of the head of a pin
    ... from the head of a frickin' shark, obviously...
  5. And once again science reporters gets it all wrong by flajann · · Score: 5, Informative
    "The new laser, which has been in design since ~2002 will, at 1 kilojoule per 1 picosecond pulse, be the highest energy petawatt scale laser ever created by far. For a fleeting fraction of a second, it will deliver a beam of infrared light at 1054 nm that is more powerful than the total energy consumption of all human activity on the planet,"

    More powerful than the total ENERGY consumption of all the human activity on the planet? It's only one kilojoule. It would be much more accuracte to say that the POWER output for a picosecond would be greater than the combined POWER consumption of the entire planet.

    But that raises another question: Do most people understand the difference between ENERGY and POWER, anyway? the two words seem to be used almost interchangabily by your average Joe.

  6. Re:And once again science reporters gets it all wr by penguin+king · · Score: 1

    "The new laser, which has been in design since ~2002 will, at 1 kilojoule per 1 picosecond pulse, be the highest energy petawatt scale laser ever created by far. For a fleeting fraction of a second, it will deliver a beam of infrared light at 1054 nm that is more powerful than the total energy consumption of all human activity on the planet,"

    More powerful than the total ENERGY consumption of all the human activity on the planet? It's only one kilojoule. It would be much more accuracte to say that the POWER output for a picosecond would be greater than the combined POWER consumption of the entire planet.

    But that raises another question: Do most people understand the difference between ENERGY and POWER, anyway? the two words seem to be used almost interchangabily by your average Joe.



    Of course! Power is what you get when Energy sits around for a while :)
  7. Re:And once again science reporters gets it all wr by Anonymous Coward · · Score: 0

    Even if that were true, how on Earth could you consume that much power without some serious power disruptions?

  8. don't disparage the slashdot effect by someone1234 · · Score: 1, Funny

    You have been warned!

    --
    Patents Drive Free Software as Hurricanes Drive Construction Industry
  9. OT : Coincidence? by 4D6963 · · Score: 3, Interesting

    Is it just a coincidence or does this story have anything to do with the fact that yesterday Google had lasers on its main page (which I assume commemorated to 50 years of the creation of lasers, either that or "first laser!" must be the latest new Internet fad)?

    --
    You just got troll'd!
    1. Re:OT : Coincidence? by deglr6328 · · Score: 1

      It is NOT a coincidence and that's why I submitted it mid-day YESTERDAY with mention of this very fact. After which time /. decided to sit on the story for a day, strip out half the useful information and links I originally included, and THEN publish it.

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
  10. I think it's time.. by mrbluze · · Score: 1

    .. to put a sign up on my office door "No Hawking"

    --
    Do it yourself, because no one else will do it yourself. [beta blockade 10-17 Feb]
  11. .. oh and.. by mrbluze · · Score: 1

    On my office in Germany "Kein Unruh!"

    --
    Do it yourself, because no one else will do it yourself. [beta blockade 10-17 Feb]
  12. Re:And once again science reporters gets it all wr by penguin+king · · Score: 3, Interesting

    Actually (although I hate to reply twice) I've just noticed something in your statement that doesn't sit quite right.

    You've said "POWER output for a picosecond would be greater than the combined POWER consumption of the entire planet"

    I'm not a physicist, but isn't Power Energy per Time, thus Power output for a picosecond is Energy per Time per picosecond? Are you trying to say Energy output for a picosecond (ie 1 kJ)? I think what they are saying is that 1kJ per picosecond (a measure of power) = 10^12 kW (a measure of power.

    I'm just a bit confused about what you're saying :) (not trying to be pedantic, and I apologise if I'm mistaken)

  13. Re:And once again science reporters gets it all wr by francium+de+neobie · · Score: 4, Funny

    Step 1: Store 1kJ in a tank of capacitors
    Step 2: Short the terminals
    Step 3: ???
    Step 4: You just consumed the total power output of a power plant for a very small fraction of a second.

    (The ??? step can be anything, your capacitors might explode and kill you if you have bad karma.)

  14. Here is your mom by boombasticman · · Score: 1

    Don't shoot it in your foot, son!

  15. Mini-me... by Stormwatch · · Score: 1

    ...stop humping the world's newest, most powerful "laser".

  16. forget the sharks! by martin-boundary · · Score: 1

    Where's the KABOOM? There was supposed to be an earth-shattering KABOOM!

    1. Re:forget the sharks! by Anonymous Coward · · Score: 0

      Your username has a typo.

    2. Re:forget the sharks! by martin-boundary · · Score: 1

      Nope. It dates back to 1941.

  17. Re:And once again science reporters gets it all wr by Jarik_Tentsu · · Score: 1

    Imagine a rave with those! Even better a beowulf- I'll just shutup there.

    `Jarik

  18. World's Newest, Most Powerful Laser Shark Created by erlehmann · · Score: 2, Funny

    The OMEGA EP laser shark at the University of Rochester's Laboratory for Bioenergetics was dedicated today at the Dr. E. Vill Center for Ultra Evil Laser Shark Research. The new shark, which has been growing since ~2002 will, at 1 kilojoule per 1 picosecond pulse, have the highest energy petawatt scale laser ever mounted on the back on a shark, by far. For a fleeting fraction of a second, it will deliver a beam of infrared light at 1054 nm that is more powerful than the total power output of all other shark activity on the planet, to a tiny spot the size of the head of a pin. Previous petawatt scale shark lasers such as the one created at Lawrence Lawless labs in the late 90's (and dismantled in 1999) were capable of only several hundred joules per pulse. The new OMEGA EP laser shark will be able to manifest power densities sufficient to exert power over various just-above-soon-below sea-level countries and will have the capability to directly attack nuclear submarines through ultra high electric field initiated photodisintegration.

  19. Enough stupid shark jokes by Anonymous Coward · · Score: 0

    That movie is 11 years old now. The joke is dead.

    If you want to beat a dead horse, why not bring back "hot grits"? That was a good one.

    Or if you just can't help quoting Austin Powers, why not quote the blackjack joke instead? "I also like to live dangerously." That's the most underappreciated line in the movie - maybe the most underappreciated line of all time.

    1. Re:Enough stupid shark jokes by OpenSourced · · Score: 5, Funny

      That movie is 11 years old now. The joke is dead.

      Good jokes die with age. Bad jokes instead, become more powerful than you can possibly imagine.

      --
      Rome taught me patience and assiduous application to detail. Virtues which temper the boldness of great, general views.
    2. Re:Enough stupid shark jokes by Douglas+Goodall · · Score: 1

      I am still waiting for the Soviet Shark variation of the joke.

    3. Re:Enough stupid shark jokes by Anonymous Coward · · Score: 0

      In Soviet Russia, the shark will get the lazer from YOU

    4. Re:Enough stupid shark jokes by Anonymous Coward · · Score: 0

      In Soviet Russia, friggin' sharks attach laser beams to head of YOU!

      Happy now?

    5. Re:Enough stupid shark jokes by TheThiefMaster · · Score: 1

      In Soviet Russia, YOU shoot Soviet Shark with YOUR forehead laser.

      How's that?

    6. Re:Enough stupid shark jokes by cashman73 · · Score: 1

      I think George W. Bush was overheard in the Oval Office yesterday telling the Iranian Ambassador, "You will now witness the firepower of this fully armed and operational battle station!"

    7. Re:Enough stupid shark jokes by rhyder128k · · Score: 1

      In Soviet Russia, SERLA.

      --
      Michael Reed, freelance tech writer.
  20. don't forget political power by QuantumG · · Score: 1

    How many jewels do you need to get that?!

    --
    How we know is more important than what we know.
  21. Re:And once again science reporters gets it all wr by Anonymous Coward · · Score: 1, Funny

    Yes, but It couldn't be held in Australia. I don't think rave qualifies as a legitimate reason.

  22. Someone's Sig - It Needs To Be Said by MichaelCrawford · · Score: 3, Funny
    "Do not look into laser with remaining good eye."

    --
    Request your free CD of my piano music.
    1. Re:Someone's Sig - It Needs To Be Said by gijoel · · Score: 1

      Shouldn't that be do not look at laser with remaining head?

    2. Re:Someone's Sig - It Needs To Be Said by Trogre · · Score: 1

      Or if you live in Australia:

      Do not point laser at remaining pilot.

      (I wish I could take credit for making this one up - saw it on /. recently)

      --
      "Nine times out of ten, starting a fire is not the best way to solve the problem." - my wife
  23. Not impressed by OpenSourced · · Score: 1

    The new OMEGA EP laser will be able to manifest power densities sufficient to examine Unruh and Hawking radiation-like phenomena in the laboratory and will have the capability to directly produce nuclear reactions through ultra high electric field initiated photodisintegration

    What about black holes? I refuse to be impressed except if it can create at least a tiny black hole. They seem to be all the rage nowadays.

    --
    Rome taught me patience and assiduous application to detail. Virtues which temper the boldness of great, general views.
  24. What do you want to shoot today? by Peter+Lake · · Score: 2, Funny

    Worlds biggest laser online? Cool. What's the IP?

    --

    All Rights Reversed.
    1. Re:What do you want to shoot today? by Alexx+K · · Score: 1

      What's the IP?

      115.104.97.114:107

      --
      Don't mind the extra X. Alex
  25. The most intense is a UK Laser. by Nowhere.Men · · Score: 4, Informative

    The Central Laser Facility in the UK has a laser Astra-Gemini that will produce a greater intensity on target. It is a dual beam laser with a repetiton rate of 3 shots per minutes.

    The building to house this laser is like a small house but with a shielded room for the target area.

    - Astra- Gemini : 15 J on target in 30 fs : Single Beam Intensity to 10^22 W/cm2.

    - OMEGA EP : 1 kJ in 1 ps; on-target intensities of greater than 2 x 10^20 W/cm2.

    the pico second ignition should be called slow ignition compared with 30 femtosecond.

    1. Re:The most intense is a UK Laser. by deglr6328 · · Score: 1

      Interesting, you're right on par with the Uof Michigan's 20J / 30fs pulse laser then. But honestly what can you do with 10-20J? it's so little energy. What sorts of things are you guys doing with these ultrashort pulse lasers? The Japanese GEKKO XII laser people pretty much determined that you don't need pulses shorter than 1-10ps for fast ignition fusion studies so you must be doing other stuff with it...... laser wakefield acceleration....?

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
    2. Re:The most intense is a UK Laser. by Nowhere.Men · · Score: 1

      Using 15J, 15 fs means we have a better fireing rate than when you need to accumulate 1000 times more energy. The cooling time between shots is much shorter, so any study you want to do, can be done faster.

      I'm not a scientist there, I just work on their data management pipeline. Look here for the science : http://www.clf.rl.ac.uk/Facilities/AstraWeb/AstraGeminiSci1.htm

      See the Vulcan Laser at CLF for more powerful laser : http://www.clf.rl.ac.uk/Facilities/vulcan/laser.htm. They are currently drawing plans to upgrade it.

  26. Manhattan Project by cybereal · · Score: 1

    Thanks to this breakthrough the sequel to the 80's movie "The Manhattan Project" will be 90% shorter with 300% more John-Lithgow-Scrunched-Up-Nose per cm2

    --
    I read the script, and I think it would help my character's motivation if he was on fire. -Bender
  27. what would happen... by crazybit · · Score: 1

    if we aim that to a human being?

    --
    - Human knowledge belongs to the world
    1. Re:what would happen... by loonycyborg · · Score: 1

      That would be overkill.

    2. Re:what would happen... by ScentCone · · Score: 0, Troll

      if we aim that to a human being?

      --

      - Human knowledge belongs to the world


      Because... you want to share with the world what would happen if something that it takes an entire lab to operate on ultra tiny targets were, what... strapped to the back of a super soldier flying around in a black helicopter? Without a little context, your questions seems a little... absurd.

      Incidentally, I presume that since you think that whatever the people doing this research learn belongs to the world, that you've figured out how to collect taxes from the entire world to help pay for the research? In fact, there are all sorts of things being researched, all over the world. Who's paying the salaries and the material expenses for every one of those projects? Should I be able to demand that a company in South Korea working on a better LCD projection chip, in which they're investing hundreds of thousands of man hours, should - the moment they have some solid "human knowledge" about how to make it - just hand that over to a factory in China who will then produce products with that knowledge, happy that the knowledge belongs to them, since they are part of the world?

      Oh, and since you probably know your banking information, and that's part of human knowledge, please provide that to the world.

      Or, just use less of a ridiculous platitude for your sig, especially when you're wondering out loud what a picosecond lab laser would do when shot at a human being.

      --
      Don't disappoint your bird dog. Go to the range.
    3. Re:what would happen... by DarkWicked · · Score: 1

      Don't point that to me bro !

    4. Re:what would happen... by Anonymous Coward · · Score: 0

      Wow... that's a whole lot of douchbaggery over a sig. Lighten up a little bit. You'll be happier, I promise.

      By the way, yes, I do believe that ALL knowledge belongs to everybody. If a company invests thousands of man hours in a project, and someone else capitalizes on it, well that sucks, but company #1 has always had the opportunity to capitalize on the knowledge of others, so it balances out.

      Not GP, so don't take it out on him.

      --
      Human knowledge belongs to the world. Ass.
    5. Re:what would happen... by ScentCone · · Score: 1

      If a company invests thousands of man hours in a project, and someone else capitalizes on it, well that sucks, but company #1 has always had the opportunity to capitalize on the knowledge of others, so it balances out.

      So, basically (just to be clear, here), you're not really in the mood to allow someone who invents something any opportunity to recoup what it costs them to invent it? Rather, you'd like all research to be communal, and would not like any competitive pressures to inspire one person to produce something better, or quicker than anyone else? So, no iPhones, or $50 500GB disk drives... just Technology By Committee? With no chance for the knowledge that you create to actually pay for the time it takes you to make it, how will you attract the money that you use to eat and have a roof over your head while you tackle a multi-year project? Who will feed you while you work? I can guess where you're headed on that subject.

      --
      Don't disappoint your bird dog. Go to the range.
    6. Re:what would happen... by Anonymous Coward · · Score: 0

      I think it would ablate a few cubic inches of flesh.
      Perhaps the shock wave from the expansion of the vaporised material after the pulse would cause more damage.

      Half the gubbins in that huge laser are to shape the pulse precisely into the single picosecond rather than to amplify it. I don't think it would make a great cutting laser.

      As an example, one used for laser ablation tumor therapy will have an average supplied energy a hundred times greater than the OMEGA EP.

    7. Re:what would happen... by deglr6328 · · Score: 1

      it's not possible to aim it at a person. the beam is vastly too intense to propagate through air. you would simply break the air down into a plasma spark where the beam exits its vacuum tube. you would have to put the [person INSIDE a vacuum chamber in order to ever actually hit them with the thing, but you'd be dead anyway inside there!

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
    8. Re:what would happen... by Kojiro+Ganryu+Sasaki · · Score: 1

      >>but you'd be dead anyway inside there!

      See? It's so powerful you don't even NEED to hit anyone with it.

    9. Re:what would happen... by Anonymous Coward · · Score: 0

      Don't lase me bro!

  28. If the USAF had a sense of Humor... by wasted · · Score: 1

    wheres the most powerful shark, step on up!


    If the US Air Force had a sense of humor, they would name the YAL-1 "Shark."
  29. Now all we need ... by Anonymous Coward · · Score: 0

    ...is the World's Newest, Most Powerful villain® to match it.

    Anyone, Anyone?

    1. Re:Now all we need ... by Anonymous Coward · · Score: 0

      er...Nicholas Negroponte?

  30. Re:And once again science reporters gets it all wr by mangu · · Score: 4, Informative

    isn't Power Energy per Time, thus Power output for a picosecond is Energy per Time per picosecond?

    You're right in that power is energy per time, in this case the energy is one kilojoule and the time is one picosecond, so the power is one kilojoule per picosecond.


    What the GP means is that, during that interval of one picosecond, the thing is emitting more power than is being consumed by all the planet. The total energy emitted by the laser pulse is that power multiplied by one picosecond, and the result of this multiplication is one kilojoule.


    An interesting bit of information here is a round figure for the power consumption of all humanity: one kilojoule per picosecond. To get the equivalent in kilowatts, multiply one kilojoule by 1000000000000, because a kilowatt is one kilojoule per second.

  31. Hey you guuuuuuuuyyyyyssss!!! by Anonymous Coward · · Score: 0

    Fight the power. Looks like it's WORK (or transmitted energy) multiplied by TIME.

    The electrical unit of power is a Watt, and the transmitted energy is measured in Amps, and I guess time is measured by the potential difference or Volts.

    How does voltage translate into time exactly? I dunno...

    1. Re:Hey you guuuuuuuuyyyyyssss!!! by BKX · · Score: 3, Insightful

      It works more like this. Imagine water flow. Amps are the area of the cross-section of the pipe. (This is why Amperage determines wire thickness. If the wire isn't as thick as the cross-section then heat will build up. Not good.)

      Volts are the pressure on the water (think length of pipe's worth of water per second. That's pressure. Regardless of the diameter of the pipe, the same length of pipe's worth of water will come out per second at the same pressure. Same thing with Volts).

      Watts are volts times amps which in water equivalent would be like volume per time (that's what you get when you multiply area by length/time). Multiply Watts by time and you get energy (measured in Watt-hours or whatever).

    2. Re:Hey you guuuuuuuuyyyyyssss!!! by archshade · · Score: 1

      Being a pendent yes but shouldn't you use the term current instead of Amperage.

      --
      Most Damage is done by people who are AWAKE
    3. Re:Hey you guuuuuuuuyyyyyssss!!! by Anonymous Coward · · Score: 0

      Being a pedant here, but I think you mean "pedant".

    4. Re:Hey you guuuuuuuuyyyyyssss!!! by Anonymous Coward · · Score: 0

      Are you kidding me? Pipe analogies Car Analogies.

      Electrons are like dumptrucks. You fill them with dirt (charge), and send them on down the line. Roads are conductors, and amperage is a measure of traffic.

    5. Re:Hey you guuuuuuuuyyyyyssss!!! by Sj0 · · Score: 1

      The hilarious part of the analogy is that water through a pipe is ridiculously complicated compared to voltage. You get started on laminar vs. turbulent flows, reynold's number, height, pressure head, velocity head, pressure drop, K factor, it all just adds up to something way more difficult than simple Ohms Law.

      --
      It's been a long time.
  32. Ant Mound.... by TheeBlueRoom · · Score: 1

    where is that mound of fire ants that bit me @ the last BBQ.....

    --
    I wish I was clever!
  33. Warning Sign by StCredZero · · Score: 2, Funny

    "Do not stare into laser with remaining eye."

  34. Shoop da Woop by Anonymous Coward · · Score: 0

    Shoop da freakin Woop indeed

    1. Re:Shoop da Woop by Anonymous Coward · · Score: 0

      IMA FIRIN MAH LAZER!!!111111

      And suck the earth's energy dry.

  35. Two Movies come to mind by Anonymous Coward · · Score: 0

    1. Planetbusters (anime, 1984)

    2. Real Genius (1985)

  36. World's Newest, Most Powerful Laser Comes Online by Daimanta · · Score: 1

    Scriptkiddies ready to hack newest laser.

    --
    Knowledge is power. Knowledge shared is power lost.
  37. The six most exciting words in the article by DreadfulGrape · · Score: 3, Funny

    "ultra high electric field initiated photodisintegration"

    Gawd, I get a chubby just thinking about that.....

    --
    sig has been sent away for a few small repairs...
    1. Re:The six most exciting words in the article by ag3ntugly · · Score: 0

      I don't pretend to understand those words completely, but yeah it sounds like it'd be something cool to do to someone's car.

      --
      i have a roll of electrical tape.
  38. Brody: by peterpi · · Score: 1

    "We're gonna need a bigger shark"

    1. Re:Brody: by CrazyTalk · · Score: 1

      Hey, that movie is over *30* years old, so everyone complaining about the Austin Powers references have been beat.

  39. Re:And once again science reporters gets it all wr by MemoryAid · · Score: 1
    One petawatt? One kiloterawatt? Megagigawatt!

    10E15 watts?

    9090909 libraries of congress?

    One Pinatubo?

    --
    Language students: Don't try to learn English here. This ain't it.
  40. Cool!!! by dharmadove · · Score: 1

    Ultra high electric field initiated photodisintegration. When will the NCC-1701-D be upgraded with one of these?

  41. Soooo, you should be able to by spineboy · · Score: 1

    Shoot down an enemy ICBM, even with rotating heat shields, reflective surfaces, etc.

    Nice to have since other countries are working on their atomic programs, and missile systems. Suitcase nukes on the other hand :-(

    --
    ..........FULL STOP.
  42. Re:And once again science reporters gets it all wr by LordVader717 · · Score: 1

    When you say "consumption" you generally refer to the derivative of the value, so in this case energy consumtion := power.

    If I say "my car consumes a lot of fuel", I primarily mean that my car isn't very efficient, not that I drive a lot.

  43. Kent? This is Jesus, Kent by Theatetus · · Score: 1

    Nice that we can create things hotter than the sun in a lab.

    --
    All's true that is mistrusted
  44. Where is the ZPM so we can use this at full power. by Joe+The+Dragon · · Score: 1

    Where is the ZPM so we can use this at full power.

  45. Online? by Cyko_01 · · Score: 1

    ok, so what is the website? I've got a few target of my own *cough* RIAA *cough*

  46. Uh-oh... by Warg!+The+Orcs!! · · Score: 1

    ...bad news for pins everywhere :(

    --
    Travelling forward in time at a rate of 1 second per second.
  47. Re:And once again science reporters gets it all wr by kestasjk · · Score: 1

    q(t)=Qe^(-t/(RC))
    I(t)=q'(t)=-(Q/RC)e^(-t/(RC))
    Max I=(Q/CR)
    Max Power = I^2*R = (Q/C)^2*(1/R)
    Voltage = (Q/C) = V across capacitor
    Max Power = V^2/R
    i.e. It's like making a spring release all the world's power for a short period of time; it needs to be really compressed and spring out really quickly to release such a tiny amount of energy at the same rate that the whole world releases energy.
    --
    // MD_Update(&m,buf,j);
  48. Now if we made a big mirror... by Anonymous Coward · · Score: 1, Funny

    how much popcorn could this thing pop when fired from space or a test aircraft?

  49. I pity the folks in my generation. by patio11 · · Score: 1

    Your generation looks back at the movies of yesteryear and remembers Star Wars. My generation looks back at the movies of yesteryear and remembers... Star Wars.

  50. Re:And once again science reporters gets it all wr by peas_n_carrots · · Score: 2, Insightful

    Their statement is recursive:
    "For a fleeting fraction of a second, it will deliver a beam of infrared light at 1054 nm that is more powerful than the total energy consumption of all human activity on the planet"

    Last I checked, Rochester (and the laser there) are located on planet earth. Strictly speaking, it could only consume all the power on the planet if everything else were shut off. 'Course, that statement would apply to everything else, including a blender. Here's a suggestion for the poster: "...more powerful than the total energy consumption of all other human activity on the planet..."

  51. power vs. energy records by davidwr · · Score: 1

    I want to see records for
    * power for single-pulse laser, in watts
    * energy per pulse of single-pulse laser, in joules
    * power of continuous laser, in watts
    * average energy per second for single-pulse lasers firing as rapidly as possible, in joules

    --
    Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
    1. Re:power vs. energy records by deglr6328 · · Score: 1

      I'm sorry the article didn't contain all the information I included when I submitted it. ./ edited the shit out of it.

      the instantaneous power for a single pulse is in the range of 1 petawatt (million billion watts)

      the energy per pulse is a maximum of ~1 kilojoule for a petawatt pulse (1 picosecond) and 2-3kj for nanosecond pulses - we're limited by laser power damage thresholds for optics like 4 foot wide diffraction gratings etc.

      the laser cannot operate in CW mode

      the average energy is LOOOWWWWW, we can only do one pulse per hour because the neodymium laser glass heats up so much during a shot and produces wavefront aberrations in the beam.

      I would be glad to answer any other questions you may have....

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
    2. Re:power vs. energy records by davidwr · · Score: 1

      Actually, I was more interested in a web site that maintained an up-to-date records and maybe even "top-5" or "top-10" lists for all of those categories, with pointers back to the research labs that run the high-power and high-energy lasers.

      --
      Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
    3. Re:power vs. energy records by deglr6328 · · Score: 1

      I am unaware of a single website which has such a list though this used to maintain such a list, it hasn't been updated in ~8 years and is GROSSLY outdated and inaccurate now. Certain International Atomic Energy Agency papers in their journal of fusion research have moderately complete lists. Also, I have put together a list of most of the biggest / highest energy fusion related lasers (both historic and current) in wikipedia's pages though even that's getting a bit outdated now.

      The top 5 highest energy lasers though are: NIF (the National Ignition Facility at Livermore Labs at ~100KJ /pulse now and planned to be 2 MEGAJOULES within a year or so when it's completed), OMEGA (at the lab for laser energetics at 30 KJ/pulse in the UV spectrum), NOVA (at LLNL in the 80's and 90's, now defunct but used to produce ~30-40 KJ shots), GEKKO XII (in Japan at 5-10KJ / pulse), and then OMEGA EP (in long pulse mode at up to 5 KJ/ shot).

      As to the top 5 most powerful I really don't know. We're the most powerful right now with OMEGA EP, next powerful might be either the Vulcan petawatt at RAL un the UK or Japan's 500J petawatt. Both lasers incidentally use parts from the dismantled NOVA laser from LLNL.

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
  52. To quote Daffy Duck by hcdejong · · Score: 1

    ...and brother, when it disintegrates, it disintegrates (about his trusty Acme Disintegrating Pistol)
  53. How do you test for Hawking radiation? by paratiritis · · Score: 1

    The new OMEGA EP laser will be able to manifest power densities sufficient to examine Unruh and Hawking radiation-like phenomena in the laboratory Does it create a black hole? If not then it doesn't test for Hawing radiation. You can test for the Unruh effect and invoke the equivalence principle (check the wikipedia articles) but that is not the same as testing for Hawking directly. Pity. Creating a black hole would be the ultimate physics hack.
  54. This is just wonderful by Prince+Vegeta+SSJ4 · · Score: 1
    more powerful than the total energy consumption of all human activity on the planet

    In other news, Exxon cites laser testing as the reason for the increasing demand in energy. To quote an Exxon representative: "Total energy consumption has quintupled due to rising shark populations, and the need to attach this laser to their heads.

  55. Ahah, by deesine · · Score: 1

    you homed in on that phrase too! It feels like something gets destroyed every time I say that.

    Electric Field Initiated Photodisintegration -- take that!

    --
    damaged by dogma
  56. /Real Genius by Zarian · · Score: 1

    Yeah but will it be able to cook a house filled with popcorn?

  57. Re:And once again science reporters gets it all wr by Anonymous Coward · · Score: 0

    Step 5. Profit!

  58. In layman's terms by LM741N · · Score: 2, Interesting

    you take a car battery and discharge all of its energy in a picosecond or less, and for that split second, you are generating as much power as this laser.

    Big deal.

    1. Re:In layman's terms by bh_doc · · Score: 1

      I'd like to see you discharge a car battery in a picosecond or less, let alone in a unidirectional single-wavelength coherent beam of infrared light. Good luck with that.

      It might not be a whole hell of a lot of energy in total, but it'll still burn a hole through your face.

    2. Re:In layman's terms by Anonymous Coward · · Score: 0

      Yes, except you could never discharge a car battery in 1 picosecond. The internal resistance + parasitic capacitances will generate a time constant of order ~ milliseconds.

  59. Re:And once again science reporters gets it all wr by Anonymous Coward · · Score: 0

    Create a short with a small piece of iron filament from heavy steel wool. Wind a coil and place it in series with this wire and place the coil so it is parallel to the wire in such a way that when the wire turns to iron plasma the coil will pull the plasma and focus it. Now short this series circuit to your charged capacitors.

    Describe the results.

  60. Re:And once again science reporters gets it all wr by deglr6328 · · Score: 1

    you're right,it certainly could've been worded more accurately, but in my defense, /. edited the HELL out of what I submitted - removing links everywhere and CUTTING OUT A LOT of more interesting information like gee, I don't know what the laser will mainly be be used for. Which is really annoying because the hawking radiation stuff is only a minor part of what we're doing. They sat on the submission for a whole day and to answer the question of the poster below, NO it wasn't an accident that this was submitted on the 48th anniversary of the first laser being created and I mentioned that in my post. Very disappointing the editors here seem to think their readers can't handle a little hard science anymore. I think I'll go elsewhere when I want to submit a story from now on.....

    --
    - "Hear that?! The percolations are imminent! Cease your ingress!"
  61. Obligatory by eli+pabst · · Score: 1

    Lazlo: "Looks at the facts: very high power, portable, limited firing time, unlimited range. All you'd need is a big spinning mirror and you could vaporize a human target from space."
    (Mitch glances at Chris.)
    Chris: "This is not good."

  62. So... by hyperz69 · · Score: 1

    When can I buy it on thinkgeek? I need to melt some trashbags...



    from 1000 miles away.

  63. Give it a week.. by cheros · · Score: 1

    .. and they'll be selling them on wickedlasers.com :-)

    --
    Insert .sig here. Send no money now. Owner may sue, contents will settle. Batteries not included.
  64. Re:And once again science reporters gets it all wr by sir+fer · · Score: 0

    watts are joules per second...that's why a kilojoule in a picosecond makes a shitload of watts... 1000 joules / 10^-12 seconds = 10^15 joules per second or watts ...simple...altho not to those on /. it would seem

    --
    Debian FTW ;o)
  65. Que bad 80s synth pop by zolon · · Score: 0, Offtopic

    He's Howard The Duck!

    --
    Merf
  66. whatcouldpossiblygowrong by Anonymous Coward · · Score: 0

    captcha possibly

  67. Re:And once again science reporters gets it all wr by TapeCutter · · Score: 1

    "One Pinatubo?

    Several, unless you count the magma blob below.

    --
    And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.