novaBBS - sci.electronics.design - Re: High-performance visible-light lasers that fit on a fingertip

High-performance visible-light lasers that fit on a fingertip

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From: pNaonStp...@yahoo.com (Jan Panteltje)
Newsgroups: sci.electronics.design
Subject: High-performance visible-light lasers that fit on a fingertip
Date: Fri, 06 Jan 2023 07:21:25 GMT
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by: Jan Panteltje - Fri, 6 Jan 2023 07:21 UTC

High-performance visible-light lasers that fit on a fingertip;
https://www.sciencedaily.com/releases/2023/01/230104135615.htm

"Researchers at Columbia Engineering's Lipson Nanophotonics Group have created visible lasers of very pure colors from near-ultraviolet to near-infrared that fit on a fingertip.
The colors of the lasers can be precisely tuned and extremely fast -- up to 267 petahertz per second,"

Re: High-performance visible-light lasers that fit on a fingertip

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Subject: Re: High-performance visible-light lasers that fit on a fingertip
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From: BobEngel...@comcast.net (Bob Engelhardt)
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by: Bob Engelhardt - Fri, 6 Jan 2023 13:51 UTC

Re: High-performance visible-light lasers that fit on a fingertip

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From: Jef...@invalid.invalid (Jeff Layman)
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Subject: Re: High-performance visible-light lasers that fit on a fingertip
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by: Jeff Layman - Fri, 6 Jan 2023 14:11 UTC

On 06/01/2023 13:51, Bob Engelhardt wrote:
> On 1/6/2023 2:21 AM, Jan Panteltje wrote:
>> [...] petahertz per second
> There goes their credibility.

Are you sure it wasn't accelerating? ;-)

It's an error from ScienceDaily. The original article at
<https://www.nature.com/articles/s41566-022-01120-w> states:
"In addition, we show fine-tuning speeds of up to 267 GHz µs⁻¹ ..."

Even then, 267 GHz would be 0.267 PHz. So two errors for the price of one!

Jeff

Re: High-performance visible-light lasers that fit on a fingertip

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Subject: Re: High-performance visible-light lasers that fit on a fingertip
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by: a a - Fri, 6 Jan 2023 14:42 UTC

On Friday, 6 January 2023 at 15:11:58 UTC+1, Jeff Layman wrote:
> On 06/01/2023 13:51, Bob Engelhardt wrote:
> > On 1/6/2023 2:21 AM, Jan Panteltje wrote:
> >> [...] petahertz per second
> > There goes their credibility.
> Are you sure it wasn't accelerating? ;-)
>
> It's an error from ScienceDaily. The original article at
> <https://www.nature.com/articles/s41566-022-01120-w> states:
> "In addition, we show fine-tuning speeds of up to 267 GHz µs⁻¹ ..."
>
> Even then, 267 GHz would be 0.267 PHz. So two errors for the price of one!
>
> --
>
> Jeff
daily fake by nature science

Re: High-performance visible-light lasers that fit on a fingertip

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From: jer...@nospam.please (Jeroen Belleman)
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Subject: Re: High-performance visible-light lasers that fit on a fingertip
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by: Jeroen Belleman - Fri, 6 Jan 2023 16:36 UTC

On 2023-01-06 15:11, Jeff Layman wrote:
> On 06/01/2023 13:51, Bob Engelhardt wrote:
>> On 1/6/2023 2:21 AM, Jan Panteltje wrote:
>>> [...] petahertz per second
>> There goes their credibility.
>
> Are you sure it wasn't accelerating? ;-)
>
> It's an error from ScienceDaily. The original article at <https://www.nature.com/articles/s41566-022-01120-w> states:
> "In addition, we show fine-tuning speeds of up to 267 GHz µs⁻¹ ..."
>
> Even then, 267 GHz would be 0.267 PHz. So two errors for the price of one!
>

Using multiplier prefixes in both numerator and denominator is a sin
in my eyes, but it *does* translate to a tuning speed of 267 PHz/s,
at least they got that right. Other than that, the article is pretty
much empty of substance, as usual.

Jeroen Belleman

Re: High-performance visible-light lasers that fit on a fingertip

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From: pcdhSpam...@electrooptical.net (Phil Hobbs)
Newsgroups: sci.electronics.design
Subject: Re: High-performance visible-light lasers that fit on a fingertip
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by: Phil Hobbs - Fri, 6 Jan 2023 19:48 UTC

Jeff Layman wrote:
> On 06/01/2023 13:51, Bob Engelhardt wrote:
>> On 1/6/2023 2:21 AM, Jan Panteltje wrote:
>>> [...] petahertz per second
>> There goes their credibility.
>
> Are you sure it wasn't accelerating? ;-)
>
> It's an error from ScienceDaily. The original article at
> <https://www.nature.com/articles/s41566-022-01120-w> states:
> "In addition, we show fine-tuning speeds of up to 267 GHz µs⁻¹ ..."
>
> Even then, 267 GHz would be 0.267 PHz. So two errors for the price of one!
>
0.000267 PHz. ;)

Cheers

Phil Hobbs

Re: High-performance visible-light lasers that fit on a fingertip

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From: Jef...@invalid.invalid (Jeff Layman)
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Subject: Re: High-performance visible-light lasers that fit on a fingertip
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by: Jeff Layman - Fri, 6 Jan 2023 20:09 UTC

On 06/01/2023 16:36, Jeroen Belleman wrote:
> On 2023-01-06 15:11, Jeff Layman wrote:
>> On 06/01/2023 13:51, Bob Engelhardt wrote:
>>> On 1/6/2023 2:21 AM, Jan Panteltje wrote:
>>>> [...] petahertz per second
>>> There goes their credibility.
>>
>> Are you sure it wasn't accelerating? ;-)
>>
>> It's an error from ScienceDaily. The original article at <https://www.nature.com/articles/s41566-022-01120-w> states:
>> "In addition, we show fine-tuning speeds of up to 267 GHz µs⁻¹ ..."
>>
>> Even then, 267 GHz would be 0.267 PHz. So two errors for the price of one!
>>
>
> Using multiplier prefixes in both numerator and denominator is a sin
> in my eyes, but it *does* translate to a tuning speed of 267 PHz/s,
> at least they got that right. Other than that, the article is pretty
> much empty of substance, as usual.

You're right, of course. Where did I put that tera when I needed it?!
But I agree about mixing multipliers.

Jeff

Re: High-performance visible-light lasers that fit on a fingertip

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by: a a - Sun, 8 Jan 2023 05:18 UTC

That does not compute.

tech / sci.electronics.design / Re: High-performance visible-light lasers that fit on a fingertip

Subject	Author
High-performance visible-light lasers that fit on a fingertip	Jan Panteltje
Re: High-performance visible-light lasers that fit on a fingertip	Bob Engelhardt
Re: High-performance visible-light lasers that fit on a fingertip	Jeff Layman
Re: High-performance visible-light lasers that fit on a fingertip	a a
Re: High-performance visible-light lasers that fit on a fingertip	a a
Re: High-performance visible-light lasers that fit on a fingertip	Jeroen Belleman
Re: High-performance visible-light lasers that fit on a fingertip	Jeff Layman
Re: High-performance visible-light lasers that fit on a fingertip	Phil Hobbs