LBTEK polymer achromatic quarter-wave plates (AQWP) are made with an N-BK7 glass substrate and liquid crystal polymer (LCP) material, consisting of three layers of liquid crystal true zero-order waveplates arranged at specific angles. In each layer of the LCP film, the liquid crystal molecules' fast axis orientation is consistent, and the three layers are stacked according to the design angles to form the overall fast axis orientation of the achromatic waveplate. The phase delay is controlled by adjusting the thickness of each LCP film layer and the relative fast axis angles.

The achromatic quarter-wave plate has a phase delay of π/2 and is commonly used to convert linearly polarized light into circularly polarized light. Polymer achromatic waveplates feature nearly true zero-order characteristics, support large incident angles, and exhibit low sensitivity to wavelength and temperature variations. Unlike traditional single-wavelength waveplates, they are not limited to specific working wavelengths and can change the polarization state of light across a wavelength range. Compared to traditional achromatic waveplates, they offer adjustable wavelength ranges, customizable substrate sizes and shapes, and support ultra-large aperture fabrication, making them more adaptable to customer needs.

The standard polymer achromatic quarter-wave plates are available in design wavelength ranges of 400-700 nm, 600-800 nm, and 700-1100 nm, with component sizes of Ø25.4 mm and Ø50.8 mm. The one-inch standard version is mounted in a standard SM1 lens tube, with the tube surface engraved with the product model, phase delay, working wavelength, and fast axis identification line. The two-inch standard version comes unmounted, with a single-side flat edge aligned with the fast axis direction, making it easy for customers to identify and use.

LBTEK polymer achromatic quarter-wave plates are commonly used to convert linearly polarized light into circularly polarized light within the design wavelength range. After passing through the achromatic quarter-wave plate, the optical path difference generated is λ/4, and the phase delay is π/2. The one-inch standard polymer achromatic quarter-wave plate is mounted in a standard SM1 lens tube, with the surface of the tube engraved with the product model, phase delay, design wavelength, and fast axis direction, making it easy for users to quickly identify and use the waveplate.