Converting a Gaussian beam into an optical vortex beam, the Spiral Phase Plate SPP-1064-1-D25.4 is also known as a vortex phase plate or a vortex lens.The spiral phase plate (SPP) is a phase-type diffractive optical element (DOE) whose optical thickness is proportional to the rotation of the azimuth angle.
A special light field including a spiral phase structure and orbital angular momentum (OAM), Vortex beam has been widely used in many fieldssuch as optical communications, optical tweezers, quantum information transmission, Solar coronagraphs and the super -resolution imaging.
Standard wavelength is 532nm, 632.8nm, 969nm, 1064nm, and 1550nm. Other wavelengths, component sizes and topological charges of SPPs are also available. Same of them are available in stock.

The data sheet of Spiral phase plate SPP-1064-1-D25.4
| Parameters | |
| Wavelength [nm] | 1064 |
| Beam Mode (SM/MM | Single Mode TEM00 |
| Element Size | ø25.4 |
| Element Type | Window |
| Material | Fused Silica |
| Coating | NO coating |
| Topological Charge | 1 |
| Transmission efficiency | >99% |
| Overall Efficiency | ~88% |
| Accuracy | ±30nm |


