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Old 07-22-2017, 09:53 AM #17
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Default Re: The quest for yellow, orange semiconductor diodes

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I changed it back already Radim I agree though, it's a great series! I really like the older episodes with I think the Canadian narrator I think he is? Really creates a good atmosphere when you watch. I've seen almost all the episodes I have no more to watch

-Alex
True. Still all are great compared to new series from different producers which are focussed much more on "tabloid" perception instead of complexity analysis of the accident case and story of investigation. That new approach for masses I do not like and it bothers me. But these Canadian series is great, you can almost learn how to fly airliner from this.


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Old 07-22-2017, 12:30 PM #18
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Default Re: The quest for yellow, orange semiconductor diodes

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Originally Posted by diachi View Post
Man, haven't seen you around in a while! Welcome back!

It'll be a while before yellow diodes are affordable for us, if they ever are. With any lucky they'll find a use for them in the entertainment industry, that's the only reason we have most of the diodes we typically use at affordable prices really. Mass production for DVD writers, then HD-DVD/BluRay, then high power blue for projectors and now high power green for the same thing.

There were some experimental orange diodes kicking around years ago that came from an auction, as far as I remember. Think they were 608nm or 612nm. A few folk here picked those up. They had to be run at a very low temperature, well below freezing IIRC, in order to reach that. May even have been "cryogenic" diodes. Anyone's memory better than mine? I can remember the guy that was selling them, can't for the life of me figure out how to spell his username. "Huerresciences" something like that?
Medical applications also drive the research to produce electrically driven diodes.
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Old 07-22-2017, 12:33 PM #19
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Default Re: The quest for yellow, orange semiconductor diodes

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Originally Posted by Sta View Post
Pretty sure this is fairly old news, and not much of a big development. Quantum well laser diodes are very, very hard to produce.

Btw, I'm back.
Both articles are year plus a few days old.
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