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Have a look at my answer to Make a semi transparent mirror with copperMake a semi transparent mirror with copper

Although the question is about a different metal the principle is the same. Note however that 40% transmission requires a very thin film, and at those thicknesses the film has a tendancy to form islands of metal with voids between them. This causes some deviation from a simple exponential law.

Have a look at my answer to Make a semi transparent mirror with copper

Although the question is about a different metal the principle is the same. Note however that 40% transmission requires a very thin film, and at those thicknesses the film has a tendancy to form islands of metal with voids between them. This causes some deviation from a simple exponential law.

Have a look at my answer to Make a semi transparent mirror with copper

Although the question is about a different metal the principle is the same. Note however that 40% transmission requires a very thin film, and at those thicknesses the film has a tendancy to form islands of metal with voids between them. This causes some deviation from a simple exponential law.

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John Rennie
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Have a look at my answer to Make a semi transparent mirror with copper

Although the question is about a different metal the principle is the same. Note however that 40% transmission requires a very thin film, and at those thicknesses the film has a tendancy to form islands of metal with voids between them. This causes some deviation from a simple exponential law.