Precision Superachromatic Retarder

AddThis Button

Precision Superachromatic Retarder

KEY FEATURES
  • Ultra-broadband wavelength range
  • 420 to 1100 nm and 800 to 1700 nm
  • Custom wavelength ranges available
  • Custom retardances available
  • Superior field of view

DESCRIPTION

Meadowlark Optics is proud to introduce our new Precision Superachromatic Retarder - now with the broadest wavelength coverage of our entire retarder product line. These are available standard for two wavelength ranges - 420 to 1100 nm and 800 to 1700 nm - and in both quarter and half wave retardances. Custom devices are available for other wavelength ranges and retardances. Stock items are not anti-reflection coated due to the broad wavelength coverage but custom coatings can be provided.

The Superachromatic Retarders contain carefully aligned birefringent polymer sheets laminated between precision polished optically flat N-BK7 windows.

Read More...

Meadowlark Optics is proud to introduce our new Precision Superachromatic Retarder - now with the broadest wavelength coverage of our entire retarder product line. These are available standard for two wavelength ranges - 420 to 1100 nm and 800 to 1700 nm - and in both quarter and half wave retardances. Custom devices are available for other wavelength ranges and retardances. Stock items are not anti-reflection coated due to the broad wavelength coverage but custom coatings can be provided.

The Superachromatic Retarders contain carefully aligned birefringent polymer sheets laminated between precision polished optically flat N-BK7 windows. While assembly is quite similar to that of our Precision Retarders, optical transmission is slightly reduced because there are more polymer layers and there is no antireflection coating.

These retarders are accurate to ± λ/50 over the entire wavelength range; we ship retardance measurements at more than 25 wavelengths accurate to ±0.001 waves with every Precision Superachromatic Retarder.

Read Less...

Specifications - Precision Superachromatic Retarder
Retarder Material Birefringent Polymer
Substrate Material N-BK7
Wavelength Ranges 420-1100 nm
800-1700 nm
TWD (1.00 in.) λ/4 (P-V @ 633)
[λ/16 (RMS @ 633)]
Retardance Accuracy ≤ λ/50
Acceptance Angle ±10°
Surface Quality 40-20 scratch-dig
Beam Deviation ≤ 2 arc-min
Temperature Range 10°C to 50°C (Operating)
Laser Damage Threshold 500 W/cm 2, CW 
300 mJ/cm2, 10ns, VIS
500 mJ/cm2, 10ns, 1064 nm
 

 

Ordering Information - Precision Superachromatic Retarder
Mounted
Diameter ±0.005 in.
[±0.13 mm]
Clear Aperture
in. [mm]
Thickness 
±0.020 in.
[±0.51 mm]
Wavelength
Range [nm]
λ/4
Part #
λ/2
Part #
1.00 [25.4] 0.70 [17.8] 0.36 [9.1] 420 - 1100 AQM - 100S AHM - 100S
1.00 [25.4] 0.70 [17.8] 0.36 [9.1] 800 - 1700 AQM - 100L AHM - 100L
2.00 [50.8] 1.20 [30.5] 0.50 [12.7] 420 - 1100 AQM - 200S AHM - 200S
2.00 [50.8] 1.20 [30.5] 0.50 [12.7] 800 - 1700 AQM - 200L AHM - 100L
Unmounted
Diameter ±0.010 in.
[±0.25 mm]
Clear Aperture
in. [mm]
Thickness 
±0.020 in.
[±0.51 mm]
Wavelength
Range [mm]
λ/4
Part #
λ/2
Part #
1.00 [25.4] 0.80 [20.3] 0.27 [6.9] 420 - 1100 AQ - 100S AH - 100S
1.00 [25.4] 0.80 [20.3] 0.27 [6.9] 800 - 1700 AQ  - 100L AH - 100L
2.00 [50.8] 1.60 [40.6] 0.51 [13.0] 420 - 1100 AQ - 200S AH - 200S
2.00 [50.8] 1.60 [40.6] 0.51 [13.0] 800 - 1700 AQ - 200L AH - 200L
Custom sizes and retardance values are available. Please contact your Meadowlark Optics sales engineer for a custom quote.