When you beam intense pulses of light into a thin circle, strange things will happen, according to new research based on the optical equivalent of a whispering gallery.
Inside tiny loops of transparent fibre, waves of light can be forced to break step and change the orientation of their wiggle in odd ways, bending the rules and potentially giving future engineers new tools for emerging optical technology.
Researchers from the UK’s National Physical Laboratory (NPL) and Heriot-Watt University in Edinburgh have watched light break its usual symmetrical patterns inside devices called optical ring resonators.
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