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NIST scientists create 'any wavelength' lasers

130 pointsby rbanffyyesterday at 8:54 PM62 commentsview on HN

Comments

adzmyesterday at 10:59 PM

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

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nabakintoday at 12:14 AM

> When it comes to information transfer and processing, light can do things that electricity can’t. Photons — particles of light — are far zippier than electrons at working their way through circuits.

Electrons themselves don't move at the speed of light, but information transfer (i.e. communication) via electrons does happen close to the speed of light.

A subtle, but important, distinction that's often misunderstood and means computational performance gains would probably come from bandwidth, not latency.

maptyesterday at 10:05 PM

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

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spacedoutmantoday at 12:23 AM

My first thought is this will be used as a weapon to bypass protections against specific wavelengths

spaqinyesterday at 11:58 PM

That's most certainly good news (depending on the final cost) for ion trapping quantum computing - the wavelength of the laser they require to trap an ion depends on the molecule chosen, and most setups are expensive, finicky and difficult to calibrate, or sometimes messy if it's a dye laser.

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jagged-chiselyesterday at 11:32 PM

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?

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himata4113yesterday at 11:43 PM

since the light range is so high, technically speaking as the technology improves does that mean we could end up sending petabytes a second over a single fiber optic core?

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evotoday at 12:02 AM

I wonder if this is a nuclear proliferation risk--could it be used for AVLIS/SILEX?

jcimsyesterday at 11:01 PM

Can each device vary the color or is it fixed based on how it’s built? Seems the latter?

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deepsunyesterday at 11:40 PM

Would I finally be able to see bright brown?

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aftbityesterday at 10:11 PM

Cool, can I get a "proper" yellow diode laser from this? What's the efficiency look like?

cheschireyesterday at 10:27 PM

Yes but can it do any color a mantis shrimp would like?

https://theoatmeal.com/comics/mantis_shrimp

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__MatrixMan__yesterday at 11:03 PM

I'll take one in gamma please.

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guzfipyesterday at 11:13 PM

Very cool stuff. I regret wasting my life in software when I see other fields still doing interesting work.

analog8374yesterday at 10:22 PM

can they do microwave?

if you do the exact right color you can make certain things melt very precisely.

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jiveturkeyyesterday at 10:14 PM

But can it produce magenta?

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staplungyesterday at 10:14 PM

What if I like magenta? Or brown?

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rogmashtoday at 12:30 AM

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