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An international scientific team led by researchers at ITMO University demonstrated experimentally what it believes to be the world’s most compact semiconductor laser operating in the visible range at room temperature. The nanolaser produces green coherent light at room temperature. This light can be easily registered and even seen by the naked eye using a standard optical microscope.
The researchers used halide perovskite as the material for their nanolaser. The perovskite provided two key elements — an active medium that allowed for the generation of coherent stimulated emission and an optical resonator that helped confine electromagnetic energy.
To generate laser radiation at room temperature, the scientists…READ MORE