Meadowlark Optics’ Liquid Crystal Polarization Gratings use varying birefringence to create highly efficient polarization-sensitive gratings. They efficiently diffract circularly polarized light into either the first positive or negative order, depending on the incident light’s handedness. By stacking these gratings and using half-waveplate switches, it’s possible to steer light into 2N discrete angles in 1-D or 2-D arrays.
Also known as geometric phase gratings, Pancharatnam-Berry phase gratings, and diffractive waveplates, these gratings can be customized by Meadowlark. They offer wide-angle beam steering (> 100°), large apertures (> 20 cm), sub-millisecond switching times, reduced size, weight, and power (SWaP) requirements, random-access, inertia-less beam steering, and dynamic focusing. Contact a Meadowlark Optics Solutions Engineer for assistance with your unique needs.
Benefits of LCPG Beam Steering
Liquid Crystal Polarization Grating (LCPG) Technology
Non-mechanically reconfigurable optics with vastly superior size, weight, and power requirements compared to their mechanical counterparts.
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Item # | Dimensions | Dimensional Tolerance | Lead Time | Price | QTY | Add to cart |
---|---|---|---|---|---|---|
3.3 x 6.0 x 2.2 in. (8.4 x 15.2 x 5.6 cm) | nominal | 1 – 2 Days | $695.00 | Max: Min: 1 Step: 1 |
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Meadowlark Optics is excited to announce the release of the Model B1010, our new Analog Liquid Crystal Controller. This liquid crystal (LC) driver is designed to integrate with any single (standard) Meadowlark Optics LC device currently offered as well as any nematic Liquid Crystal device compatible with the specifications listed.
Independent voltage settings allow easy and repeatable selection of two retardance values. Often, it is desirable to modulate between the two states. For example, switching between quarter-wave and three-quarter-wave retardance changes linearly polarized light between left and right circular. A manual toggle allows easy switching between two states. Banana jacks between the knobs allow for continuous voltage monitoring without interfering with LC device connections.
Each Meadowlark Optics Liquid Crystal Variable Retarder is supplied with a plot of its actual retardance versus voltage. Using your Model B1010 Controller and this retardance plot ensures accurate retardance to voltage correlation.
For specification, please contact Sales at 303.833.4333 or sales@meadowlark.com. Working with us personally ensures that you receive the exact component or system you need every time.