A New Twist to Optical Detectors
Optics & Photonics Focus
Volume 19 Story 5 - 28/3/2013

Detecting the twist of light

The orbital angular momentum (OAM) of light can be detected after having been converted into surface waves, known as surface plasmons. This is the principle behind the new detector of OAM proposed by researchers at Harvard University.
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Detecting the twist of light. The orbital angular momentum (OAM) of light can be detected after having been converted into surface waves, known as surface plasmons. This is the principle behind the new detector of OAM proposed by researchers at Harvard University.