Darren New nous apporta ses lumieres en ce 2007/11/08 19:28:
> Alain wrote:
>> A wave guide have ior <1 for radio waves. You can't find the 
>> equivalent for IR and visible light.
> 
> Huh. Why not?  Just because of the size of the atoms you'd have to build 
> it from or something?
> 
A wave guide ior tend to go higher as the wave length go shorter. There is a 
wave length rhere it's ior is = 1, and at shorter wave length, it goes > 1.
If you reduce the openings, the critical wave length diminish, but only by a 
diminishing fraction of the change.

-- 
Alain
-------------------------------------------------
It is the passion that is in a kiss that gives to it its sweetness; it is the 
affection in a kiss that sanctifies it.
~Christian Nevell Bovee

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