Featured Vortex Phase Plates
RPC Photonics is now offering a vortex phase plate with charge 2 (VPP-2) in addition to its current VPP-1 product for charge-1 vortices.
Vortex phase plates impart a spiral phase to an incoming wavefront and are used in a wide variety of fields such as communications, astronomy, and particle trapping.
RPC Photonics utilizes its laserwriting process to produce vortex phase plates as analog surface-relief patterns and has offered for some time a vortex phase plate product that includes several charge-1 vortex patterns designed for wavelengths in the range of 400 to 1000 microns.
We are now offering a similar product, model VPP-2, with continuous-phase charge 2 vortex phase plates also designed for wavelengths in the range of 400 to 1000 microns.
Measured surface profile of charge-2 vortex pattern
The geometry for our current vortex products is shown below, offered as polymer replicas on a glass substrate.
The layout of vortex patters is illustrated below ( the center singularity is not usable):
| 370.1 |
394.0 |
419.1 |
436.1 |
465.2 |
Wavelength map (nm) associated with 2π phase depth for product vPP-2 (master u7155). |
| 493.6 |
521.0 |
544.4 |
567.8 |
598.0 |
| 638.2 |
661.2 |
|
708.9 |
748.5 |
| 779.8 |
806.8 |
828.8 |
851.9 |
897.0 |
| 925.7 |
954.3 |
978.1 |
1004.1 |
1026.8 |
|
|
|
 |
