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Thin-film interference is a natural phenomenon in which 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.
This interference is between light reflected from different surfaces of a thin film; thus, the effect is known as thin-film interference. Its effects and applications are everywhere: in incredibly precise optical devices, anti-forgery measures, and in cameras and projectors. As described below, Katharine Burr Blodgett's pioneering invention of ...
This interference is between light reflected from different surfaces of a thin film; thus, the effect is known as thin-film interference. As we noted before, interference effects are most prominent when light interacts with something having a size similar to its wavelength.
This interference is between light reflected from different surfaces of a thin film; thus, the effect is known as thin film interference. As noticed before, interference effects are most prominent when light interacts with something having a size similar to its wavelength.
This effect, known as thin-film interference, is observable in soap bubbles and oil slicks. More general periodic structures, not limited to planar layers, exhibit structural coloration with more complex dependence on angle, and are known as photonic crystals .
Thin-Film. Interference. in Lossy, Ultra-Thin Layers. Mikhail A. Kats, Romain Blanchard, Shriram Ramanathan and Federico Capasso. Although much thinner than conventional optical interference coatings, nanometer-thick films made of optically absorbing materials can display strong interference effects.
Thin film interference occurs when light reflects multiple times off the two sides of a thin transparent material. Thicknesses on the order of 0.1 μm~10 μm ( ¼λ~10λ of visible light within the film) are considered "thin". Thin film interference can be both constructive and destructive.
