Matter Bound By Light

Scientists in the UK have made 2D arrays of particles that are held together by nothing except light. The “optical matter” arrays developed by Colin Bain of Durham University and Christopher Mellor, now at the National Institute for Medical Research, consist of polystyrene nanospheres that are trapped by light that has been scattered off a prism. The arrays provide a new way of assembling matter on the nanoscale, and could also shed light on processes inside crystals that take place at even smaller scales.

Site – http://physicsweb.org

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