The ultra-thin lens can revolutionize next generation computers and cameras.
Scientists have managed to create the thinnest camera lens ever. The lens is remarkably tiny, more than 2,000 times thinner than the human hair and holds promise for various fields from medicine to science to technology. Even the compound eyes of insects could also be replicated with these lenses.
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The new ultra-thin lens is made up of special ingredient molybdenum disulphide crystal and is 6.3 nanometers in size, smashing previous record of previous smallest 50 nanomaters thick lens.
“Molybdenum disulphide is an amazing crystal. It survives at high temperatures, is a lubricant, a good semiconductor and can emit photos too.” Lead researcher Dr Yuerui Lu from The Australian National University (ANU) said in a statement.
“This type of material is the perfect candidate of future flexible displays.”
To create the lens, researchers peeled of a large chunk of Molybdenum disulphide with tape. Then, they shaved off the layers of the crystal atom by atom using ion beam until they got dome shaped lens.
Researchers found that single layer of molybdenum disulphide, almost 0.7 nanometers thick, has remarkable optical property known as optical path length. When a ray of light travels along a path between two points, the optical path is the reflective index and determines interference and bending of light.
“At the beginning we couldn’t imagine why molybdenum disulphide had such surprising properties,” said Dr Lu.
“The capability of manipulating the flow of light in atomic scale opens an exciting avenue towards unprecedented miniaturization of optical components and the integration of advanced optical functionalities.”
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Researchers also demonstrated how light bounce back and forth many times inside crystal layers before passing through. This technology could revolutionize miniature camera, phones and can help create computer screens with bending capabilities.