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Hello

I'm trying to solve a problem where I'm asked to find the optimum index of refraction for an antireflective coating on a piece of glass. In trying to derive an equation for it I keep coming across this in the internet (where 1,0, and s should be subscripts)

n1=sqrt(n0ns)

where n1 is the index of refraction of the coating, n0 is that of the air, and ns is the glass (see here - http://en.wikipedia.org/wiki/Antireflection_coating) [Broken]. I can't work out how this was derived for the life of me and can't find it anywhere in books or the internet. Does anyone have any ideas?

Thanks a lot

Robert

I'm trying to solve a problem where I'm asked to find the optimum index of refraction for an antireflective coating on a piece of glass. In trying to derive an equation for it I keep coming across this in the internet (where 1,0, and s should be subscripts)

n1=sqrt(n0ns)

where n1 is the index of refraction of the coating, n0 is that of the air, and ns is the glass (see here - http://en.wikipedia.org/wiki/Antireflection_coating) [Broken]. I can't work out how this was derived for the life of me and can't find it anywhere in books or the internet. Does anyone have any ideas?

Thanks a lot

Robert

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