Bogdan Chesaru's profile

Light interference



What am I looking at?

A soap film is a thin layer of water bounded by two layers of surfactant molecules. The iridescent colors arise from the interference of light waves reflecting off the front and back surfaces of the film. This natural phenomenon is known as thin-film interference.

Significantly thinner than a normal soap bubble, the dark regions are surfactant bilayers (Newton black film). Trapped inside the molecular sandwich, the bright filaments of aqueous solution are shaped by gravity and molecular forces.


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Light interference
Published:

Light interference

Published: