Deborah Kane
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Thin-film interference is the phenomenon that is a result of lightwave being reflected off two surfaces that are at a distance comparable to its wavelength. When light waves that reflect off the top and bottom surfaces interfere with one another, we see different coloured patterns.
- The thin-film interference depends on the thickness of the film, light wavelength and refractive indices.
- The phenomenon of thin-film interference occurs when a light wave is reflected off two surfaces at a distance equal to its wavelength. We witness v...
- The emergence of multiple colours of light from soap bubbles and oil films, after reflection, is due to thin-film interference.
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.
When a film of oil spreads over the surface of water, or a thin glass plate is illuminated by light, interference occurs between the light waves reflected from the film, and also between the light waves transmitted through the film.
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.
Figure 3.5.1 – Thin Film Destructive Interference. In the figure above, part of the incoming wave reflects off the front surface of the transparent film (the red wave), and the rest of it is transmitted into the film, after which it reflects off the rear surface (the blue wave).
Feb 20, 2022 · 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.
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What is thin film interference?
What type of interference occurs when light is reflected from a thin film?
What causes destructive interference?
Can thin films interfere with reflected light?
Jan 13, 2021 · 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.
