Laser Physics upside down
Vienna, Austria (SPX) Jun 20, 2014 - At the Vienna University of Technology a system of coupled lasers has been created which exhibits truly paradoxical behaviour: An increase in energy supply switches the lasers off, reducing the energy can switch them on. Sound waves fade, water waves ebb, light waves are dissipated by a wall. The absorption of waves is a very common phenomenon. But only recently have physicists realized th ... more
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