I'm not buying one until you can set it to stun.
Posted on 07/17/2023 12:46:47 PM PDT by algore
Semiconductor lasers, unlike bulky gas lasers and fiber lasers, are tiny, energy efficient, and highly controllable. The one thing they can’t do is deliver their competitor’s steel-slicing brightness.
In results reported last week in Nature, a group of researchers at Kyoto University, in Japan, led by IEEE Fellow Susumu Noda, has taken a big step in overcoming the limitations of semiconductor laser brightness by changing the structure of photonic-crystal surface-emitting lasers (PCSELs). A photonic crystal is composed of a semiconductor sheet punched through with regular, nanometer-scale air-filled holes. Photonic crystal lasers are attractive candidates for high-brightness lasers, but until now engineers haven’t been able to scale them up to deliver beams bright enough for practical metal cutting and processing.
Noda’s group, which has been working on PCSELs for more than two decades, was able to develop a laser with a diameter of 3 millimeters, a tenfold areal jump up from previous 1-millimeter-diameter PCSEL devices. The new laser has a power output of 50 watts, a similar increase from the 5- to 10-W power output of the 1-mm PCSELs. The new laser’s brightness, about 1 GW/cm2/str, is now high enough for applications currently dominated by bulky gas lasers and fiber lasers, such as precision smart manufacturing in the electronics and automotive industries.
It’s also high enough for more exotic applications such as satellite communications and propulsion.
Noda’s group used photonic crystals embedded within the laser, combined with adjustments to an internal reflector, to allow single-mode oscillation over a wider area and to compensate for thermal disruption. These two changes allowed the PCSEL to maintain high beam quality even while continuously operating.
(Excerpt) Read more at spectrum.ieee.org ...
I’ll see your 4 axis and raise you 5 axis.
Does it seem that most new high tech breakthroughs and research are being done in Japan, Korea, or by CHinese in US colleges.
Can I get one in the 40W range?
Wavelength??
Soldering has just gotten faster................
Impressive. Can I get one in a rifle configuration?
“Can I get one in the 40W range?”
Just what you see, pal!
CC
Can we get one that can be used for photolithography? Then we can use it for making chips and retire the gas lasers.
I’m not buying one until you can set it to “annihilate. “
“I want one that can attach to a 4 axis cnc machine”
How would you control depth of cut?
So, not only will terrorists be able to blind pilots, they’ll be able to shoot down the plane that’s carrying them.
Time and laser power
I just got one of these for soldering
https://www.pine64.org/pinecil/
very impressed. it heats up in about 20 seconds and it runs off usb-c PD so any usb-c adaptor with 65w or more
I can even use it portably with my powerbank
Just because they can doesn’t mean they should.
Thats Kamala level AI.
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