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Mon Apr 26, 2021, 04:29 AM

Photonic device makes light any color by manipulating individual photons

By Michael Irving
April 25, 2021



A new optical device manipulates the frequencies of individual photons to change the color of light on demand NataliGiado/Depositphotos

Engineers at Stanford have created a new optical device that can easily manipulate light into basically any color desired. The system uses a series of modulators to fine-tune the frequencies of individual photons to change their color.

Our eyes perceive the color of light based on the frequency at which its photons resonate. Lower frequencies correlate with longer wavelengths, which is a measure from one peak to the next if you map out those frequencies. In the visible light spectrum, we can see from the longer wavelengths of red light to the shorter wavelengths of blue light.

The Stanford team has now created an optical device that can tweak the frequencies of individual photons. That not only changes their color, but by mixing these photons of different colors to different degrees, a beam of light can be fine tuned into basically any color that’s needed.

The new device consists of a low-loss wire, with a series of rings dotted along it. As photons travel through this wire, they move into the rings where modulators transform their frequency. There can be as many rings as necessary to change the light into the desired color.

More:
https://newatlas.com/electronics/photonics-color-light-photons/

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Arrow 16 replies Author Time Post
Reply Photonic device makes light any color by manipulating individual photons (Original post)
Judi Lynn Apr 26 OP
abqtommy Apr 26 #1
Unknown Beatle Apr 26 #2
Bernardo de La Paz Apr 26 #4
Pobeka Apr 26 #7
housecat Apr 26 #8
Loki Liesmith Apr 30 #15
bucolic_frolic Apr 26 #3
BobsYourUncle Apr 26 #5
Blues Heron Apr 26 #6
yonder Apr 30 #16
JohnnyRingo Apr 26 #9
caraher Apr 26 #10
Mr. Scorpio Apr 27 #11
mac2766 Apr 29 #13
mac2766 Apr 29 #14
LudwigPastorius Apr 27 #12

Response to Judi Lynn (Original post)

Mon Apr 26, 2021, 05:36 AM

1. I think that at some point it's time to stop all this messing about. I don't see any good

coming out of doing things just because we can.

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Response to abqtommy (Reply #1)

Mon Apr 26, 2021, 05:50 AM

2. From the linked article.

The team says that this powerful new tool could have a range of applications in the field of photonics, including communications, quantum computing and AI, and its design should allow for more compact devices.

“It’s very versatile,” says Shanhui Fan, senior author of the study. “The engineer can control the frequencies and proportions very accurately and a wide variety of transformations are possible. It puts new power in the engineer’s hands. How they will use it is up to them.”


It has a range of applications.

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Response to abqtommy (Reply #1)

Mon Apr 26, 2021, 06:46 AM

4. What? !?!? Fundamental research gave you the computer you posted with. Ref Wernher von Braun


"Research is what I am doing when I don't know what I am doing." -- Wernher von Braun.

I think that at some point it's time to stop all this messing about. I don't see any good coming out of doing things just because we can.


What the heck would lead you to write such arrant nonsense?

Fundamental research is incredibly important. You would be tilling the earth behind an ox if not for fundamental research. Get real.

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Response to Bernardo de La Paz (Reply #4)

Mon Apr 26, 2021, 10:09 AM

7. +1 ! n/t

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Response to abqtommy (Reply #1)

Mon Apr 26, 2021, 10:48 AM

8. maybe not immediately, but for those with imagination....

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Response to abqtommy (Reply #1)

Fri Apr 30, 2021, 01:36 AM

15. This is one of the single silliest statements that I've ever heard

I suppose congratulations are in order.

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Response to Judi Lynn (Original post)

Mon Apr 26, 2021, 06:07 AM

3. Sounds like it would be great for color blind people and cool people

Get me some Color Wave glasses.

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Response to bucolic_frolic (Reply #3)

Mon Apr 26, 2021, 07:20 AM

5. Proton computer so small...

that you just put in your Apple color-wave contacts and download your workday or your favorite AR game, if it’s your day off. COOL!!!

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Response to Judi Lynn (Original post)

Mon Apr 26, 2021, 08:41 AM

6. maybe they can warm up those god-awful "welding torch" LEDs

While they're at it put a lampshade on those things! Whatever happened to shaded bulbs? Every new LED security light these days is bare bulb - WTF?

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Response to Blues Heron (Reply #6)

Fri Apr 30, 2021, 02:21 PM

16. Agree. Those ubiquitous, blue/white, high K lights

make my skin crawl. It's like being around someone who talks too much: I'm always looking for the quickest and easiest exit.

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Response to Judi Lynn (Original post)

Mon Apr 26, 2021, 12:04 PM

9. Rock bands rejoice!

Imagine the light show if Pink Floyd had this tech.

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Response to Judi Lynn (Original post)

Mon Apr 26, 2021, 08:36 PM

10. Weird writing - "low-loss wire"

They're talking about optical waveguides, not wires - in other words, fiber-optics.

This is about single photons for computer/communication applications, not "color" in the sense of something you perceive with your eyes. I mean yes, it is about that, but at the single photon level it's not light you would see directly.

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Response to Judi Lynn (Original post)

Tue Apr 27, 2021, 09:17 PM

11. How soon do we get cloaking devices?

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Response to Mr. Scorpio (Reply #11)

Thu Apr 29, 2021, 09:03 AM

13. That's what I was thinking...

The Invisible Man has arrived.

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Response to Mr. Scorpio (Reply #11)

Thu Apr 29, 2021, 09:03 AM

14. That's what I was thinking...

The Invisible Man has arrived.

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Response to Judi Lynn (Original post)

Tue Apr 27, 2021, 11:35 PM

12. With this, soon we'll be able to set the Holodeck to...


recreate a groovy, day-glo day in Haight-Ashbury circa 1967.

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