To demonstrate the new technology, the researchers used concave reflective lenses to
With this technology, scientists will be able to createstrictly controlled microbubbles that can be changed depending on the needs of scientists. In the future, these lenses can be used as graphene microbubbles as dynamic and high-precision nanophotonic components for miniature laboratory-on-a-chip devices, as well as for wide application in high-resolution spectroscopy.
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This is why the group used graphene oxidematerials that consist of a graphene film decorated with oxygen functional groups. Gases cannot penetrate graphene oxide materials, so the researchers used a laser to locally irradiate the film to create gases that would be embedded inside the film and form microbubbles, such as balls.
Researchers have already presented concave reflectivelenses for focusing light. The team says the lens is a high quality focal spot and can be used as a light source for microscopic imaging.
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