Waveplate

A waveplate is an optical device widely used to alter the polarization of a wave of light travelling through it. This is available in different types such as half-wave plate that shifts the polarization direction and the quarter-wave plate that changes the circularly polarized light into linearly polarized light. It is designed from birefringent material in different thickness range that depends on the dimension of the crystal, the light wavelength, and index of refraction.

It is widely used in optical mineralogy. In addition, it is also used to make the optical identification of a range of minerals easier and faster.This plate is placed between the upright polarizers to permit two different procedures to be conducted for investigating the mineral.

Features of Waveplates:

1) Ideal to distinguish the direction of the optical indicatrix relative.
2) Transmits light and modifies polarization state.
3) Air-spaced design to ensure high damage threshold.
4) No wear, abrasion, cuts or scratches.
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Cemented True Zero Order Waveplate

  • Material: crystal quartz / BK7 optical glass
  • Diameter tolerance: +0.0, -0.1mm
  • Wavefront distortion: λ/8@632.8nm
  • Retardation tolerance: λ/500
  • Wavelength range: 400-2100nm
  • Parallelism: < 1 arc second
  • Surface quality: 20-10 scratch & dig
  • Coating: AR/AR coating, R < 0.2% on both surface at central wavelength

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Low Order Waveplate

  • Material: Crystal Quartz
  • Diameter tolerance: +0.0, -0.1mm
  • Wavefront distortion: λ/8
  • Retardation tolerance:  λ/500
  • Wavelength range:  240-2100nm
  • Parallelism: < 1 arc second
  • Surface quality: 20-10 scratch & dig
  • Coating: AR coating, R<0.2% on both surface at central wavelength

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Cemented Zero Order Waveplate

  • Material: crystal quartz
  • Diameter Tolerance: +0.0, -0.2mm
  • Wavefront Distortion: λ/4@632.8mm
  • Retardation Tolerance: λ/500
  • Wavelength Range: 400-2100nm
  • Parallelism: < 1 arc second
  • Surface Quality: 20-10 scratch & dig
  • Coating: AR/AR, R < 0.2% on both surface at central wavelength

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Optically Contact Zero Order Waveplate

  • Material: crystal quartz
  • Diameter tolerance: +0.0, -0.2mm
  • Wavefront distortion: λ/4@632.8mm
  • Retardation tolerance: λ/500
  • Wavelength range: 400-2100nm
  • Parallelism: < 1 arc second
  • Surface quality: 20-10 scratch & dig

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Air-spaced zero order waveplate

  • Material: crystal quartz
  • Diameter tolerance: +0.0, -0.2mm
  • Wavefront distortion: λ/8@632.8mm
  • Retardation tolerance: λ/500
  • Wavelength range: 240-2100nm
  • Parallelism: < 1 arc second (single quartz plate)
  • Surface quality: 20-10 scratch & dig
  • Coating: AR/AR, R < 0.2% on both surface at central wavelength

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Achromatic Waveplate

  • Material: crystal quartz and MgF2
  • Diameter tolerance: +0.0, -0.1mm
  • Wavefront distortion: λ/4@632.8mm
  • Retardation tolerance: λ/100
  • Wavelength range: VIS: 465-610nm, NIR: 700-1000nm, IR: 1200-1650nm
  • Parallelism: < 10 arc second
  • Surface quality: 20-10 scratch & dig
  • Coating: AR/AR, R < 0.2% on both surface at central wavelength

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Dual Wavelength Waveplate

  • Material: Crystal Quartz
  • Diameter tolerance: +0.0, -0.1mm
  • Wavefront distortion: Lambda/8
  • Retardation tolerance: Lambda/500
  • Wavelength range: 240-1200nm
  • Parallelism: < 1 arc second
  • Surface quality: 20-10 scratch & dig
  • Coating: AR/AR coating, R<0.2% at fundamental wavelength, R<0.5% at SHG wavelength

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Single Plate True Zero Order Waveplate

  • Material: crystal quartz
  • Diameter tolerance: +0.0, -0.1mm
  • Wavefront distortion: Lambda/8@632.8nm
  • Retardation tolerance: Lambda/500
  • Wavelength range: 400-2100nm
  • Parallelism: < 1 arc second
  • Surface quality: 20-10 scratch & dig
  • Coating: AR/AR coating, R < 0.2% on both surface at central wavelength

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