Researchers used commercially available tabletop lasers to create tiny, atomically sharp nanostructures in samples of a layered 2D material called hexagonal Boron Nitride (hBN). The new nanopatterning technique is a simple way to modify materials with light--and it doesn't involve an expensive and resource-intensive clean room.
Researchers used commercially available tabletop lasers to create tiny, atomically sharp nanostructures in samples of a layered 2D material called hexagonal Boron Nitride . The new nanopatterning technique is a simple way to modify materials with light--and it doesn't involve an expensive and resource-intensive clean room.
The new nanopatterning technique, developed in the lab of Professor Alexander Gaeta, is a simple way to modify materials with light -- and it doesn't involve an expensive and resource-intensive clean room.Several well-established techniques exist to modify materials and create desired nanopatterns, but they tend to require extensive training and expensive overhead.
"Modern society is based on miniaturization, but it's been much harder to shrink devices that rely on light than electrons," explained physics PhD student and co-author Samuel Moore."By harnessing strong hBN atomic vibrations, we can shrink infrared light wavelengths by orders of magnitude." A break can be extended as long as desired once started, and samples as thick as 80 nanometers and as thin as 24 nanometers have been unzipped -- theoretically, the bound could be much lower. This gives researchers plenty of options to modify hBN and explore how its nanopatterning can influence its resulting properties, without having to gear up in a clean room bunny suit."It really just depends on your ultimate goal," said Chen.
That problem shared similarities to other problems Chen tackles in her time outside the lab as a boulderer, a form of rock climbing in which climbers scrabble up low, rugged rock faces without harness equipment to catch them if they fall."In bouldering, the potential climbing routes are called problems, and there's no right answer to solving them," she said.
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