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Photo taken on Sept. 6, 2017 shows red fluorescence from the rare earth ions in an yttrium orthosilicate crystal interacting with a (yellow) laser beam in the Australian National University (ANU), Canberra.
Australian scientists have made a significant breakthrough in developing an "unhackable" quantum internet, it was announced on Sept. 12.
Doctor Rose Ahlefeldt (L) and Associate Professor Matthew Sellars operate a high resolution dye laser, which they use to study rare earth crystals in the Australian National University (ANU).