Thin-film interference

Rarity: Common

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At a glance

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Notion

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Science and technology

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What Wikipedia says

Thin-film interference occurs when light waves reflected by the upper and lower boundaries of a thin film interfere with one another, increasing reflection at some wavelengths and decreasing it at others. When white light is incident on a thin film, this effect produces colorful reflections.

Excerpt from the Wikipedia article “Thin-film interference”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Auteur inconnu, Public domain, via Wikimedia Commons.