Phase Plate for Altering Orbital Angular Momentum (IMAGE)

Joint Quantum Institute

Phase Plate for Altering Orbital Angular Momentum

Caption

This is a schematic phase plate for imparting extra quantum units of orbital angular momentum. Neutron waves fall on the face of this plate, made by milling a dowel of aluminum into a ramp-shaped spiral. The steeper the pitch of the milled phase plate, the more orbital angular momentum will be imparted to the neutron beam.

Credit

Ivar Taminiau

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.