Abstract
The singular nature of a noninteger spiral phase plate allows easy manipulation of spatial degrees of freedom of photon states. Using two such devices, we have observed very high-dimensional spatial entanglement of twin photons generated by spontaneous parametric down-conversion.
- Received 29 April 2005
DOI:https://doi.org/10.1103/PhysRevLett.95.240501
©2005 American Physical Society