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Re: [ATM] What is the "dielectric" in dielectric coatings?

>
> A single dielectric layer may have a seemingly minor affect of the
> reflection.  The addition of a properly selected different dielectric 
> layers
> creates a larger overall affect..
>

In gaz lasers, mirrors constitute the ends of a resonnance cavity. Ther 
coefficient of reflection is enhanced up to 99.9 % with complex 
dielectric layers. Simple metallic reflexion is not better than 98%

JMB 


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