LBTek

Polymer Achromatic Quarter-Wave Plate — AQWP25-VNIR-A-M

AQWP25-VNIR-A-M
$791.89
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Polymer Achromatic Quarter-Wave Plate (SM1 Mount) — Model AQWP25-VNIR-A-M

Broadband polymer λ/4 waveplate for 600 nm-800 nm, SM1 lens tube (SM1-8A-SP with D-step).

Overview

LBTek's Polymer Achromatic Quarter-Wave Plate uses a Liquid Crystal Polymer (LCP) layer sandwiched between two N-BK7 windows to deliver true λ/4 retardance across the broadband range of 600 nm-800 nm. The polymer achromatic design provides excellent retardance uniformity and wide acceptance angle (±15° AOI), making it ideal for applications requiring achromatic polarization conversion. Each plate is supplied as SM1 lens tube (SM1-8A-SP with D-step).

Key Features

  • Polymer achromatic design: uniform λ/4 retardance across 600 nm-800 nm
  • Liquid Crystal Polymer between two N-BK7 windows
  • Wide acceptance angle: ±15° AOI
  • Delay Uniformity: ±5 nm
  • Fast-axis accuracy: ±3°
  • Transmitted Wavefront Error: < λ/2 @ 633 nm (RMS)
  • Mounted in SM1-8A-SP housing with D-step, SM1 thread

Applications

  • Broadband polarization state conversion (linear ↔ circular)
  • White-light and multi-wavelength microscopy
  • Ellipsometry and polarimetry
  • Optical coherence tomography (OCT)
  • Machine vision polarization systems
Component MaterialLiquid crystal polymer/N-BK7 Window
Retardanceλ/4
Component sizeØ25.4×3.0 mm
Delay Uniformity±5 nm
Operating Wavelength600 nm-800 nm
Retardance Accuracy±λ/50@600-640 nm & 740-800 nm; ±λ/80@640-740 nm
Clear ApertureØ21.5 mm
Angle of Incidence (AOI)±15 °
Surface Quality (Scratch/Dig)60/40
Fast axis accuracy±3 °
AR Coating400-1100 nm
Transmittance>95 %
ReflectivityRavg<0.5% (0° angle of incidence)
Wavefront Error (RMS)<λ/2@633 nm
Mechanical housing specificationsSM1-8A-SP (with D-type step)
Transmitted light deflection (without mechanical housing installed)<1 arcmin
Operating Temperature-20~80 °C
Transmitted light deflection (with mechanical housing installed)<10 arcmin
CAD Drawing Download

Product Family: Polymer Achromatic Quarter-Wave Plates (5 variants)

Product ▴▾ SKU Component size ▴▾ Operating Wavelength ▴▾ Retardance ▴▾
Polymer Achromatic Quarter-Wave Plate — AQWP51-SNIR-A AQWP51-SNIR-A Ø50.8×3.0 mm 700 nm-1100 nm λ/4View
Polymer Achromatic Quarter-Wave Plate — AQWP51-VIS-A AQWP51-VIS-A Ø50.8×3.0 mm 450 nm-700 nm λ/4View
Polymer Achromatic Quarter-Wave Plate — AQWP25-SNIR-A-M AQWP25-SNIR-A-M Ø25.4×3.0 mm 700 nm-1100 nm λ/4View
Polymer Achromatic Quarter-Wave Plate — AQWP25-VNIR-A-M Current AQWP25-VNIR-A-M Ø25.4×3.0 mm 600 nm-800 nm λ/4
Polymer Achromatic Quarter-Wave Plate — AQWP25-VIS-A-M AQWP25-VIS-A-M Ø25.4×3.0 mm 400 nm-700 nm λ/4View