Alt-BEAM Archive
Message #13220
To: beam@sgiblab.sgi.com
From: "Timothy Flytch" beam@sgiblab.sgi.com
Date: Sat, 08 Apr 2000 22:26:45 PDT
Subject: Re: Wacky ideas floating around
Dave ,
Yes, I guess so... I have no real hands on experience with lasers... but it
was covered in one of my classes... I asked the professor what was meant by
"stored up"... The way I understand it is that as the light is changed in
axis (direction of flow???) it is reflected several times... And builds up
till it hits some kind of threshold or is it just proper alignment???...
Then is emitted... In a flash laser it can take a long time after the flash
before it is released... (ten of nano seconds)...
I have to admit, I still don't understand the deference between cohesive and
coherent...
Timothy...
>>lite is "stored up" in the ruby...
>
>I don't think you can consider this as "storing" light, as it's taking
>white light and converting it to a different kind of light (red cohesive
>beam).
>
>I haven't heard of ruby-rod lasers having a hole in the middle; just a
>cylinder with one flat end fully mirrored, and the other flat end partially
>mirrored so the red light can escape out. Is this one you're referring to a
>variation on the same theme?
>
>The only think I can think of that comes close to the concept of "storing
>light" is the glow-in-the-dark effect in the plastic of my daughter's water
>vaporizer!
>
>-Dave
>---------------------------------------------------------------
>"Um, no - that's H,R,Y,N,K,I,W. No, not K,I,U,U, K,I,_W_. Yes,
>that's right. Yes, I know it looks like "HOCKYRINK." Yup, only
> 2 vowels. Pronounciation? _SMITH_".
> http://www.solarbotics.com
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