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NIST scientists create 'any wavelength' lasers

nist.gov

41–50 of 201 posts

Re: NIST scientists create 'any wavelength' lasers

#42
post #24

Everyone talking about magenta and brown, but you can see an illusory color right now even without lasers! https://dynomight.net/colors/ behold, some kind of hyper-turquoise

The whole idea of colour and light frequency is fascinating.

These are just frequencies of light, but the subjective experience of them is so much more.

And the whole thing of my perception of "red" or what I call "red" could be very different to someone else's subjective perception. But we would both call it red and associate it with the same thing, fire, love, heat, danger etc.

Re: NIST scientists create 'any wavelength' lasers

#44
post #42
post #24

Everyone talking about magenta and brown, but you can see an illusory color right now even without lasers! https://dynomight.net/colors/ behold, some kind of hyper-turquoise

The whole idea of colour and light frequency is fascinating. These are just frequencies of light, but the subjective experience of them is so much more. And the whole thing of my perception of "red" or what I call "red" could be very different to someone else's subjective perception. But we would both call it red and associate it with the same thing, fire, love, heat, danger etc.

But also - colours don't exist without a name

eg. Before Orange, there was only shades of yellow or reds

Re: NIST scientists create 'any wavelength' lasers

#45

The "shrinking" circle: I did as asked and clicked the image to see the animation. I saw no shrinking. My eyes did fatigue and I saw the border between the red and green become a blurred gradient. What should I have experienced?

State for longer. It starts shrinking only after a minute.

Re: NIST scientists create 'any wavelength' lasers

#48
post #7
post #2

Is there a single person here interested in photonic computing that wants to explain to the class if there's any "there" there?

It’s like any other fundamental research: you don’t know how much it’s worth until people start using it to solve real problems. This is something that is literally impossible to guess ahead of time. The most abstract mathematical techniques could turn into a trillion–dollar industry (number theory begat RSA encryption which now underpins _everything_ we do). But I will say that precise control of laser wavelength is…

Hopefully the billions money in AI will find some of its to turn this into real life applications. AI inference would love some more faster more efficient communication.

I mean, Photonic computing already got the attention of these big tech companies.

Re: NIST scientists create 'any wavelength' lasers

#50
post #42
post #24

Everyone talking about magenta and brown, but you can see an illusory color right now even without lasers! https://dynomight.net/colors/ behold, some kind of hyper-turquoise

The whole idea of colour and light frequency is fascinating. These are just frequencies of light, but the subjective experience of them is so much more. And the whole thing of my perception of "red" or what I call "red" could be very different to someone else's subjective perception. But we would both call it red and associate it with the same thing, fire, love, heat, danger etc.

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