We Solve for X: Prashant Jain on optical computing

Problem: Moore's law won't continue forever. Transistors are now so small that they have reached the quantum scale and it will simply not be physically possible to make them smaller.
Solution: Many people have proposed optical computing as the next technology to continue Moore's Law because photons move several orders of magnitude faster than electrons, do not lose energy while moving. Prashant Jain and his colleagues have developed an optical transistor - a device that could serve as the underlying logic gate for optical computing.
Technology that might make it possible: The optical transistor is built using doped metal nanoparticles that absorb and emit photons at specific frequencies of light when a voltage potential is applied.
More at we.SolveforX.com.

[@overunityinventor]

We can also use TIR as transistor as it refracts at one angle and reflects the ray at slightly different angle.

[@archeos0]

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.

[@the80386]

Pretty much every reputable university these days have photonics research group in their EECS departments.

[@aleksandar5323]

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?

[@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?

[@rohitkunjappa4065]

Very informative and a good presentation!

[@analodimripe4816]

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.

[@runguy1098]

very cool presentation, actually using this for my own presentation in my school!

[@ConceptHut]

That was awesome. Great job. Hope to see this in computer tech in the next few years.

weeeee still waiting :D

[@coolbionicle]

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?

[@newjerseylion4804]

No they are stimulate by light

[@abbaszaini1983]

People, videos and discussion about this idea have just stopped and disappeared! Why? Am I missing out?

[@ConceptHut]

Happens a lot with really great ideas. Hopefully it gets picked up.

[@ekaterinavalinakova2643]

Great presentation

[@SeanLumly]

This is incredible stuff...

[@ThompPL1]

Lots of unmentioned physical issues here . . . e.g. What about the Wavelength of Light vs. Electron ?

[@AORD72]

Why are you wanting to use electrons for the gate control. We need photons of same frequency for gate, input and emitter.

[@_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.

[@Sam-ev1oi]

Yeah quantum computers will only really be available to big industry (specifically the NSA, because decryption and all that). Then again the modern computer used to only be used by big organizations. But quantum computers have to be cooled to near absolute zero, so this strictly confines the creativity to engineer it in a way for the private consumer. I foresee Quantum computers will only really begin to become personal in the next 50+ years. Photonics on the other hand appear to have massive potential for little, with not nearly as much inherent limitatations as quantum computing.

[@letmedwight]

1:53 Now it is 2020, how do the sience look now with it?

[@cantseewhatcantbeseen4485]

I believe we are at around 7nm for high end chips.

[@ericpham8205]

Less remote control or hack if optical processor

[@zxuiji]

Here's a logic gate for light, it covers both AND & XOR, the green line is a mirror, the blue line a refactor, the orange & yellow is the 2 beams of light coloured differently for clarity, the collision provides a 1 for the AND result, anything else provides 0, the refactor is for directing the light to XOR result, the mirror is likewise for directing to the XOR result, the rest is just utilising angles & capturing the output, the excess light from a collision can just be sent to a capacitor or clock or something ensuring the energy is not wasted. drive.google.com/file/d/10D-1ML0Bag-JMOBKCmNcZWgtRRwu8e1q/view?usp=sharing

[@absolute___zero]

what paper describes this method with more detail?

[@zxuiji]

@@absolute___zero None that I know of, I got the idea after some veritasium vid mentioned prisms (been a while since I posted the comment above, don't remember if it was on the vid I mentioning), I'm too lazy to experiment with the idea so whoever wants to run with it do so, just remember if you manage to make money off of it I would appreciate some of it being sent my way, even if it's just 1%, it'll still help since I'm on UC atm

[@sonofhendrix1618]

So what would be an estimate for the fastest clockspeed of an optical processor.

[@coolbionicle]

sonof hendrix Suposing this works with non ionizing radiation and they find a way to use the light wave itself as data bits. I think the max clock speed would be the same frequency as just bellow UV light.

[@humanistwriting5477]

Sonof hendrix; if your still here The maximum clock speed is fully dependent on the gate speed of the light entering. Even in crude electro-photinic hybrids made with electro optical switches in the 1980's the max clockspeeds where in the Thz range. Currently it is in the single digit picosecond per pulse range. Pico seconds are of course currently believed to be the smallest unit of time measurement possible, and will remain as such unless someone finds loopholes in the lightspeed constant.

[@annaoaulinovna]

Video of videos. A few years later we will run optical computers. OPTO/CPU coming soon.

[@darianharrison4836]

this is very cool

[@newjerseylion4804]

This is not an all optical transistor because you still need to apply electrical chemical current to let copper sulfide allow the light single pass through.

[@absolute___zero]

well noted. and the gate delay of doped semiconductor of 5-30 picoseconds kills all performance you are getting when computing with photons

[@ibrax1]

500 years later....

[@simdimdim]

Still a long way? :D

[@MrSupervin94]

Now is 2019 and the Iphone Xr has 7nm transistors, the Moore's law is going as expected. Waiting for next year.

[@zaboomafia]

Research takes time to become mainstream. I wish we had more scientists and engineers.

[@gofastER]

504 years later....

[@onetruekeeper]

Make circuits and transistors out of pure light holograms suspended in a semiconducting gas that is affected by varying light intensity.

[@vishnushankar1702]

There is no resistance while photon is moving......wonder why intensity of a light decreases with distance..

[@carlosrodolfo2019]

Well, intensity decreases because of absorption and scattering of light in the medium. There is no resistance like collision. But I think you may think of that like a kind of resistance (actually attenuation, transmission loss).

[@rallokkcaz]

Carlos Rodolfo ^this

[@charlesalary5496]

Someone give this guy a glass of water!!!

[@ericpham8205]

If optical computing base on transitor concept or digital then who need it. Right idea but wrong perception

[@tgoddard1988]

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?

[@newjerseylion4804]

Nope that’s science.

[@perspective500]

Just the nature of science

[@luizspies]

We are at 2020 amd Rezende 9 is 7nm

[@spec_wasted]

Finally got one comment from 2020

[@ericpham8205]

With optical processor we will process image, sound and calculation million times old way of silicon semiconductor

[@absolute___zero]

excuse me, but the atom is about 200 picometers in width, and the electron is much smaller than the atom. What quantum is he talking about at 5nm ( 2:11 ) , 5 nanometers is 5000 picometers, and in this space there are 25 atoms there for electrons to travel

[@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... www.trustedreviews.com/opinions/intel-s-14nm-revolution-everything-you-need-to-know

[@sonofhendrix1618]

They did not stop at 22nm they will continue down to at least 10nm.

[@Sergiuss555]

one hydrogen atom is 0.1 nm.

[@ushim7]

That's why it's called "research"

[@zaboomafia]

We need more researchers. More scientists.

[@deltoid77-nick]

Who is this guy?

[@max_ishere]

Dear, 2020. Coronavirus is in the way of our super computing.

[@ericpham8205]

Use lenses and no need photonic chip

[@ericpham8205]

Most light computer are smart television until optical processor come out will thrust the world and life into light speed including teleporting money into your wallet in second

[@yungsloth8336]

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 >:(

[@vladark138]

LOL maybe he was so excited that he wanted his followers to know, hell maybe whole world :)

[@jonathangilliam875]

Declan Graham Was gonna make the same comment

[@yungsloth8336]

***** Coincidence? I think not Illuminati confirmed.

[@jonathangilliam875]

Declan Graham Illuminati check.

[@jamestkirk6000]

A smartphone is a perfect text script device and controller for slide shows/power point presentation. lol.

[@olumsuzks3718]

what ever you do you will still limited by the phisics of electronic

[@kosmox]

I thought a photon travels with a speed of 30m to the power of 7 p/s, not 10m to the power of 8 p/s lol

[@khalidikan3801]

maybe the X is in front of you but you can't until now see it

[@CheapSushi]

+Khalid Ikan John Cena

[@khalidikan3801]

***** no it's Rendi Ortan

[@Rajyadav-qm1dq]

Hindi me bat kro ji

[@alfaphone3675]

😂shist

[@ferashamdan4252]

مضيعة للوقت

[@MrAmalthejus]

that fake accent though

[@zaboomafia]

Sada moda lar gar