Half Wave (λ/2) Waveplates and Retardation Plates Datasheets

Achromatic Waveplates
from Dayoptics, Inc.

Dayoptics has special designed achromatic waveplates by using two pieces of plates. It is similar to Zero-order waveplate except that the two plates are made from different materials,such as crystal quartz and magnesium fluoride. Since the dispersion of the birefringence can be different for the two... [See More]

  • Retardation: Quarter; Half
  • Polarizer Application: Infrared; Visible
  • Order: Zero
  • Wavelength Range: 465 to 1750
Mica Retarder -- RQM2504
from Knight Optical (USA) LLC

Mica retarder - 1/2 Wave Plate.25mmdia.543nm. The natural cleavage of mica allows accurate zero-order retarders to be made at much lower cost than in quartz. The mica is laminated between glass plates for ease of handling. The quarter-wave plate converts linear to circular polarisation and is often... [See More]

  • Retardation: Half
  • Diameter: 25
  • Wavelength Range: 543
  • Material: Mica
Retardation Plates
from Qioptiq

Made of crystal quartz. Antireflective coating (R < 0.2 % at central wavelength). Wavefront distortion: λ/8 (at 632.8 nm). Surface quality: 2 x 0.063 (20/10 scratch and dig). Parallelism better than 1". Retardation tolerance λ/500 (typical). Type S: Single plate (multiple order). [See More]

  • Retardation: Quarter; Half
  • Polarizer Application: Infrared; Visible
  • Order: Zero; Multiple
  • Wavelength Range: 488 to 1064
Achromatic Waveplates
from Artifex Engineering

Achromatic half or quater waveplates with a retardation tolerance of λ/100. Extremely broad wavelength range with only one optic. Specifications: Material: Birefringent Crystals. Wavefront distortion: λ /4 @ 632.8nm. Retardation Tolerance: λ /100. Parallelism: <10 arc second... [See More]

  • Retardation: Quarter (optional feature); Half (optional feature)
  • Wavelength Range: 450 to 2100
  • Polarizer Application: Infrared (optional feature); Visible (optional feature)
  • Material: Achromatic
from CVI Laser Optics

Waveplates and polarization rotators use birefringence to transform, control, or analyze the polarization state of light.   Our catalog line of high energy quartz retarders include 90 ° polarization rotators, multiple-order and compound zero-order waveplates, as well as Nd:YAG dual... [See More]

  • Retardation: Quarter (optional feature); Half (optional feature)
  • Wavelength Range: 193 to 2020
  • Polarizer Application: Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature)
  • Diameter: 12.7 to 50.8
1" Dia. Liquid Crystal Retarder 400-700nm Compensated -- NT63-039
from Edmund Optics Inc.

Electrically Controlled Retardance up to ½ λ. Manual or Computer Interface Control. Easy Mounting with 8-32 Tapped Hole. Liquid Crystal Variable Waveplates (Retarders) are constructed using precision polished, optically flat fused silica windows spaced a few microns apart. The cavity... [See More]

  • Retardation: Half
  • Operating Temperature: 10 to 50
  • Wavelength Range: 400 to 700
  • Material: Nematic Liquid Crystal
Wavelength Plate -- Bonding Type
from NDK

The bonding-type plate enables the influence on phaseaccuracy caused by variations in optical rotation and the laserincident angle to be ignored. Therefore, it can be embedded inan optical system more easily. [See More]

  • Retardation: Quarter (optional feature); Half (optional feature)
  • Diameter: 5 to 10
  • Polarizer Application: Visible
  • Thickness: 0.5000 to 1
Achromatic Zero-Order Quartz-MgF2Wave Plates
from Newport Corporation

These achromatic zero-order wave plates consist of two different birefringent crystals — crystalline quartz and magnesium fluoride (MgF2) — in an air-spaced design. Compared to zero-order quartz wave plates, achromatic quartz-MgF2 wave plates offer better retardation accuracy over... [See More]

  • Retardation: Quarter; Half
  • Polarizer Application: Infrared; Visible
  • Order: Zero
  • Wavelength Range: 400 to 1600
Dual Wavelength Waveplate -- W-HPD212
from Ross Optical Industries

The low (multiple) order waveplate is designed to give a retardance of several full waves, plus the desired fraction. This results in a single, physically robust component with desired performance. However, even small changes in wavelength or temperature will result in significant changes in the... [See More]

  • Retardation: Half
  • Polarizer Application: Infrared; Visible; Ultraviolet
  • Order: Multiple
  • Wavelength Range: 266 to 1550