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After 50 years of effort, researchers made silicon emit light

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Re: After 50 years of effort, researchers made silicon emit light

#11

On a scale of zero to really big deal. How much of a big deal is this?

"Integrating photonic circuits on conventional electronic chips would enable faster data transfer and lower energy consumption without raising the chip’s temperature, which could make it particularly useful for data-intensive applications like machine learning."

Sounds potentially like a big deal :)

Re: After 50 years of effort, researchers made silicon emit light

#12
post #5

> Modern transistors, which function as a computer’s brain cells Who's the target audience for this analogy? If you understand what a brain cell is then you probably know what a transistor is too. I would bet that more people know what a transistor is than what a brain cell is.

I would bet that more people know what a transistor is than what a brain cell is.

No chance. Everyone knows what a brain cell is, to some extent. Even people who have too few to rub together don't really feel like they know what a transistor is after reading the Wikipedia page for them, twice...

Re: After 50 years of effort, researchers made silicon emit light

#13
Super cool -- one challenge will be that in order to live on the hot processors of today, these emitters will need to still work at around 400K -- the good news is that these appear to still work well at around 300K -- but it sounds like these go to nearly no bandgap at higher temperatures and shift into the infrafred. But yea, pretty awesome stuff..

Re: After 50 years of effort, researchers made silicon emit light

#14
post #5

> Modern transistors, which function as a computer’s brain cells Who's the target audience for this analogy? If you understand what a brain cell is then you probably know what a transistor is too. I would bet that more people know what a transistor is than what a brain cell is.

The source paper[1], "Single-chip microprocessor that communicates directly using light" may be closer to your preferred level.

[1] - https://www.nature.com/articles/nature16454.epdf

Re: After 50 years of effort, researchers made silicon emit light

#17
post #13

Super cool -- one challenge will be that in order to live on the hot processors of today, these emitters will need to still work at around 400K -- the good news is that these appear to still work well at around 300K -- but it sounds like these go to nearly no bandgap at higher temperatures and shift into the infrafred. But yea, pretty awesome stuff..

Wouldn't infrared be acceptable for data transmission?

Re: After 50 years of effort, researchers made silicon emit light

#18
post #5

> Modern transistors, which function as a computer’s brain cells Who's the target audience for this analogy? If you understand what a brain cell is then you probably know what a transistor is too. I would bet that more people know what a transistor is than what a brain cell is.

You don't need to know the details of a brain cell to get the analogy. If I say "transistor" to my mom, she wouldn't be able to tell me what it is. If I say "It's like the brain cells for the computer", she would probably understand that "Ah, so a computer has many transistors that helps it think", which seems good enough for an article with a broad audience. > I would bet that more people know what a transistor is t…

I would take that bet, too. If you say “transistor” to non-technical people over 50 or so, they more likely would think of small portable radios (https://en.m.wikipedia.org/wiki/Transistor_radio). To them, and many others, computers don’t have transistors, they have chips.

They _might_ know the transistor replaced vacuum tubes, but I doubt many would be able to tell what function either had, or be able to point out the transistors inside such a radio.

Re: After 50 years of effort, researchers made silicon emit light

#19
post #14
post #5

> Modern transistors, which function as a computer’s brain cells Who's the target audience for this analogy? If you understand what a brain cell is then you probably know what a transistor is too. I would bet that more people know what a transistor is than what a brain cell is.

The source paper[1], "Single-chip microprocessor that communicates directly using light" may be closer to your preferred level. [1] - https://www.nature.com/articles/nature16454.epdf

It seems to be paywalled, though.
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