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Product Description

Liquid crystal polymer/N-BK7 window material, 3-layer glass substrate + 3-layer LCP film
Uniform fast-axis orientation of the liquid crystal molecules within each single layer of the LCP film, with the overall fast-axis alignment of the achromatic waveplate formed by stacking three layers of the LCP film
Commonly used for polarization state transformation of the light at any wavelength within a specific band
Broadband compatibility, large incident angles, and suitable for the ultra-large aperture
Operating wavelength: 400-700 nm, 600-800 nm, 700-1100 nm optional
Component size: Ø25.4 mm and Ø50.8 mm optional
Custom services for parameter specifications available

The LBTEK Polymer Achromatic Half-Wave Plate utilizes an N-BK7 glass substrate and Liquid Crystal Polymer (LCP) material, consisting of three layers of quartz true zero-order waveplates designed and combined at specific angles. Each single-layer LCP film has a uniform fast-axis orientation of liquid crystal molecules, while the three LCP films are stacked according to the designed angles to form the overall fast-axis orientation of the achromatic waveplate. The total retardation is controlled by adjusting the thickness of each LCP film layer and the relative fast-axis angle. The LBTEK Polymer Achromatic Half-Wave Plate provides a phase retardation of π within the designed wavelength range and is commonly used to rotate the polarization direction of linearly polarized light. Polymer achromatic waveplates feature near true zero-order characteristics, support large incident angles, and exhibit low sensitivity to wavelength and temperature variations. Compared with traditional single-wavelength waveplates, they are not limited to specific operating wavelengths and can alter the polarization direction of the polarized light across a broad wavelength range. In contrast to conventional achromatic waveplates, they offer adjustable wavelength ranges, customizable substrate sizes and shapes, and support for ultra-large apertures, making them more adaptable to customization needs. Standard polymer achromatic half-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 product is mounted in a standard SM1 lens tube, with the tube surface engraved with the product model, retardation value, operating wavelength, and the fast-axis marking line of the waveplate. The two-inch standard product does not include a mechanical housing but features a single-sided chamfer aligned with the fast-axis direction for easy identification and use. In addition to standard products, LBTEK offers flexible customization of parameters and specifications. For specific customization needs, please contact LBTEK Technical Support.

Attribute

Component MaterialLiquid crystal polymer/N-BK7 Window

Transmission Wavefront Error＜λ/2@633 nm

Surface finish (scratches/pits)60/40

ReflectivityRavg < 0.5% (0° incidence angle)

Angle of Incidence (AOI)±15 °

Delay Uniformity±5 nm

Polymer Achromatic Half-Wave Plates, Mounted, Ø25.4 mm

Liquid crystal polymer/N-BK7 Window
Clear Aperture: Ø21.5 mm
Commonly used for deflecting the polarization direction of the linearly polarized light

The LBTEK Polymer Achromatic Half-Wave Plate is commonly used to deflect the polarization direction of the linearly polarized light within the designed wavelength range. When the linearly polarized light passes through the achromatic half-wave plate, it introduces an optical path difference of λ/2 and a phase retardation of π. The one-inch polymer achromatic half-wave plate is mounted in a standard SM1 lens tube, with product model, retardation value, design wavelength, and fast axis direction engraved on the tube surface for easy identification and use.

The LBTEK Ø25.4 mm Achromatic Waveplate is commonly installed on the rotation mount CRM-1A

Product Model	Operating Wavelength	Clear Aperture	Unit Price	Lead Time
AHWP25-VIS-A-M	400 nm-700 nm	Ø21.5 mm	$499.3	4 weeks
AHWP25-VNIR-A-M	600 nm-800 nm	Ø21.5 mm	$499.3	4 weeks
AHWP25-SNIR-A-M	700 nm-1100 nm	Ø21.5 mm	$499.3	4 weeks

Polymer Achromatic Half-Wave Plates, Unmounted, Ø50.8 mm

Liquid crystal polymer/N-BK7 Window
Clear Aperture: Ø45 mm
Commonly used for deflecting the polarization direction of the linearly polarized light

The LBTEK Polymer Achromatic Half-Wave Plate is commonly used to deflect the polarization direction of the linearly polarized light within the designed wavelength range. When the linearly polarized light passes through the achromatic half-wave plate, it generates an optical path difference of λ/2 and a phase retardation of π. The two-inch polymer achromatic half-wave plate comes without a mechanical housing, and the optical component features a single-sided chamfer aligned with the fast-axis direction for easy identification and use by customers.

The LBTEK Ø50.8 mm Achromatic Waveplate is commonly installed on the rotation mount CRM-2A

	Product Model	Operating Wavelength	Clear Aperture	Unit Price	Compare	Lead Time
	AHWP51-VIS-A	450 nm-700 nm	Ø45 mm	$998.6		4 weeks
	AHWP51-SNIR-A	700 nm-1100 nm	Ø45 mm	$998.6		4 weeks