Zero Order Vortex Half Wave Retarder

About Zero Order Vortex Half Wave Retarder

Vortex Retarders are half-wave retarders are meant to affect the radial and azimuthal polarization of optical fields. A vortex retarder has a constant retardance across the clear aperture but its fast axis rotates continuously over the area of the optic. Vortex retarders convert standard TEM00 Gaussian beams into so-called "donut hole" Laguerre-Gaussian modes

Beam Size	Upto 21mm
Angle of arrival	+- 20 Deg
Wavelength of Operation	532 nm - 1550 nm
Topological charge (m)	1 , 2

Advanced Polarization Control

This vortex half wave retarder allows for precise alteration of the polarization state of transmitted light through zero-order birefringence. With selectable topological charge and half-wave (/2) phase shift, users can manipulate and control light beams in demanding optical setups, such as laser systems and microscopy applications. The device is engineered to deliver consistent performance across the visible spectrum and can be tuned for bespoke wavelengths.


High-Precision Performance

Guaranteed for surface flatness of /10 at 632.8 nm and phase accuracy within /50, our retarder ensures minimal phase error even in sensitive optical experiments. Its damage threshold exceeds 1 GW/cm2, making it highly durable for intense laser applications, while the AR coatings on both sides reduce unwanted reflections and maximize throughput.


Customizable and Durable Design

Standard devices provide a 25.4 mm diameter and 1.1 mm thickness, but custom dimensions and mounting options are readily available to fit specialized setups. Constructed from fused silica or quartz, this retarder is lightweight (less than 50 grams), transparent, and suited for operation between -20C and +70C. The high-quality construction facilitates long-term stability in professional environments.