28 Comments

  • Tristan Goddard

    Amazing stuff, but by the end of it I felt like they have solved one problem but come up with a huge list of bigger ones…. Or is it just me?

  • CH1PSET

    I honestly think optical computers will replace our traditional electronic computers. Quantum computers have potential, but they remain basically random, they work on far different principles and require environments where quantum interference is down to a minimum. That's not good for personal use. Optics though, work in almost the same way electronics do, but many times faster. I don't think it'll be long before optical computers are a reality. I have lots of hope.

  • foresakenlion

    Sounds great but then the pulling the electrons out unless you can achieve that with a laser will be limited by electronics.

    Watching this I got an idea. What if you build your circuits as light tunnels for photons, in the middle you read the current state, at the end you have a nano crystal trap. Why couldn't you use the gap between the photon pulses as the off gate and therefore represent 1/0 as a constant stream of photons.

  • Yung Sloth

    10:20 Seriously, a dudes texting? While this man talks about the future of the very technology he is holding in his hands? What a butt-hole >:(

  • Aleksandar

    Cool!!! Do you believe there exists such a material , that when you apply light at wavelength A it allows light at wavelength B to go through. And then when you stop applying light at wavelength A , it stops to allow wavelength B to pass through?

  • Deo-Deuce

    You would need to create Photonics science branch just like Electronics and teach future photo-engineers about operating just with light and photonic components – not electronic parts. Such schools don't exist yet and probably will not exist for longer time until we reach significant limits of electro-computations.

  • gmoschwarz

    There is a problem with this talk. CPU stopped shrinking in 2005, because the quantum effects didn't allow to make smaller CPUs.

    One Hidrogen atom is 1 nm wide. Circuits stopped shrinking at 22 nm, because you get circuit lines as thick as 1 atom, you cannot get thinner than that.

    Until now, that is… http://www.trustedreviews.com/opinions/intel-s-14nm-revolution-everything-you-need-to-know

  • AnaloDim Ripe

    Transistors are to slow and cook even with light when you need is an inner crystal surface that when hit by light from the 2 directions the output light goes through the other hole. This system would process light bijectively as opposed to with on and off. Simply turning light off or on with a transistor requires more power and means slowing light down a bit using components prone to cooking. I propose a 2 light point geometric light processor as opposed to a an on off system as being far more efficient and scalable in 3d at the nano scale.

  • Angel Gonzalez

    Wait a minute, the gates are still being stimulated by an electric charge, how will you manage to fix that? I mean, wouldn't the ideal scenario be a photonic transistor which gate be controlled by light as well?

  • Chrismofer

    Given that there exist ways to finely attenuate, amplify, phase shift and frequency shift light using only optics and additional pump light, you can build optical logic gates, which means you can make memory flip flops, adders, with a comparator and even a clock with some phosphur as an optical capacitor. can't you build a whole turing machine with no semiconductors in it? how fast could that machine go if made small?

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