Achromat Retarders

Achromatic Retarders

LINOS® Achromatic retarders deliver precise, stable polarization control over broad spectral ranges, making them suitable for demanding optical applications. Offered as half-wave and quarter-wave options, they provide accurate phase manipulation with minimal wavelength dependence, ensuring consistent performance across various broadband light sources. The cemented design improves mechanical stability and long-term alignment while preserving high optical quality.

Our achromatic zero-order waveplates feature transmission exceeding 86%, surface flatness of λ/4 at 633 nm, and high surface quality, supporting low scattering and reliable wavefront preservation with controlled wavefront distortion between λ/2 and 1λ. Mounted versions are fully compatible with Microbench systems, allowing easy integration and precise alignment in laboratory and instrumentation setups where robust polarization control is essential.

Product Achr. retarder 400-700nm; L/2; mounted Achr. retarder 400-700nm; L/4; mounted Achr. retarder 700-1000nm; L/4; mounted Achr. retarder 400-700nm; L/2 Achr. retarder 400-700nm; L/4 Achr. retarder 700-1000nm; L/4
Length 10.0 mm 10.0 mm 10.0 mm
Shape Circular Circular Circular Circular Circular Circular
Optic Size Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm
Mount Microbench Microbench Microbench
Substrate Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2
Clear aperture Ø 12.5 mm Ø 12.5 mm Ø 12.5 mm Ø 12.0 mm Ø 12.0 mm Ø 12.0 mm
Wavelength Range 400.0 - 700.0 nm 400.0 - 700.0 nm 700.0 - 1000.0 nm 400.0 - 700.0 nm 400.0 - 700.0 nm 700.0 - 1000.0 nm
Mounted Mounted Mounted Mounted Unmounted Unmounted Unmounted
Tolerance of optic size - 0.02 mm - 0.02 mm - 0.02 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm
Retardation λ/2 λ/4 λ/4 λ/2 λ/4 λ/4
Flatness (λ) 1/4 1/4 1/4 1/4 1/4 1/4
Outer Mount Diameter 25.0 mm 25.0 mm 25.0 mm
  • Zero-order waveplate for highly stable and accurate polarization control with minimal wavelength sensitivity

  • Available as λ/2 and λ/4 retarders for flexible phase manipulation in a wide range of optical setups

  • Designed for three broad wavelength ranges, ensuring versatile use across multiple spectral applications

  • Cemented construction for enhanced mechanical stability and long-term alignment reliability

  • High transmission (>86%) ensures efficient light throughput and reduced signal loss

  • Uncoated optical surfaces with high surface flatness (λ/4 at 633 nm over the clear aperture) support precise wavefront preservation

  • Excellent surface quality (40–20 scratch-dig) reduces scattering and improves beam quality

  • Controlled wavefront distortion (λ/2 to 1λ) for predictable and stable optical performance

  • High laser damage resistance (>2 kW/cm² CW at 488/514 nm; >200 mJ/cm² for 10 ns pulses at 1064 nm) enables use in demanding laser environments

  • Mounted versions compatible with Microbench systems for easy integration and precise alignment in optical setups

Product Achr. retarder 400-700nm; L/2; mounted Achr. retarder 400-700nm; L/4; mounted Achr. retarder 700-1000nm; L/4; mounted Achr. retarder 400-700nm; L/2 Achr. retarder 400-700nm; L/4 Achr. retarder 700-1000nm; L/4
Length 10.0 mm 10.0 mm 10.0 mm
Shape Circular Circular Circular Circular Circular Circular
Optic Size Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm Ø 14.5 mm
Mount Microbench Microbench Microbench
Substrate Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2 Crystalline Quartz/MgF2
Clear aperture Ø 12.5 mm Ø 12.5 mm Ø 12.5 mm Ø 12.0 mm Ø 12.0 mm Ø 12.0 mm
Wavelength Range 400.0 - 700.0 nm 400.0 - 700.0 nm 700.0 - 1000.0 nm 400.0 - 700.0 nm 400.0 - 700.0 nm 700.0 - 1000.0 nm
Mounted Mounted Mounted Mounted Unmounted Unmounted Unmounted
Tolerance of optic size - 0.02 mm - 0.02 mm - 0.02 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm
Retardation λ/2 λ/4 λ/4 λ/2 λ/4 λ/4
Flatness (λ) 1/4 1/4 1/4 1/4 1/4 1/4
Outer Mount Diameter 25.0 mm 25.0 mm 25.0 mm
  • Zero-order waveplate for highly stable and accurate polarization control with minimal wavelength sensitivity

  • Available as λ/2 and λ/4 retarders for flexible phase manipulation in a wide range of optical setups

  • Designed for three broad wavelength ranges, ensuring versatile use across multiple spectral applications

  • Cemented construction for enhanced mechanical stability and long-term alignment reliability

  • High transmission (>86%) ensures efficient light throughput and reduced signal loss

  • Uncoated optical surfaces with high surface flatness (λ/4 at 633 nm over the clear aperture) support precise wavefront preservation

  • Excellent surface quality (40–20 scratch-dig) reduces scattering and improves beam quality

  • Controlled wavefront distortion (λ/2 to 1λ) for predictable and stable optical performance

  • High laser damage resistance (>2 kW/cm² CW at 488/514 nm; >200 mJ/cm² for 10 ns pulses at 1064 nm) enables use in demanding laser environments

  • Mounted versions compatible with Microbench systems for easy integration and precise alignment in optical setups

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