Ultra-Thin Lenses Point To Slimmer Mobile Phones

Ultra-Thin Lenses Point To Slimmer Mobile Phones - Electronics Featured Graphene
Baohua Jia with a sheet of . Credit: EAMON GALLAGHER

A lens just a billionth of a metre thick could transform phone cameras. Researchers at Swinburne University in Melbourne, Australia, have created ultra-thin lenses that cap an optical fibre, and can produce images with the quality and sharpness of much larger glass lenses.

“Compared with current lenses, our graphene lens only needs one film to achieve the same resolution,” says Professor Baohua Jia, a leader at Swinburne’s Centre for Micro-Photonics.

“In the future, phones could be much thinner, without having to sacrifice the quality of their cameras. Our lens also allows infrared light to pass through, which glass lenses don’t.”

Producing graphene can be costly and challenging, so Baohua and her colleagues used a laser to pattern layers of graphene oxide (graphene combined with oxygen). By then removing the oxygen, they produced low-cost, patterned of graphene, a thousand times thinner than a human hair.

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Source: Cosmos