Waveplate Principles
Download Principles Retarders are used in applications where control or
Precision and NEW Standard Waveplates
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$275.00 – $1,727.00
Key Features
- True zero-order retarders
- Excellent off-axis performance
- Unequaled measured accuracy
- Less temperature dependence than quartz waveplates
- Lower cost than compound zero-order waveplates
- Better angular acceptance than compound zero-order quartz waveplates
Common Specifications
Retarder Material: Birefringent Polymer
Custom Wavelengths: 400 – 1800 nm
Surface Quality (scratch-dig): 40 – 20
Beam Deviation: ≤ 1 arc-min
Reflectance (per surface): ≤ 0.5 % at normal incidence
Laser Damage Threshold:
500 W/cm², CW
600 mJ/cm², 20 ns, visible
4 J/cm², 20 ns, 1064 nm
Operating Temperature Range: – 20˚C to 50˚C
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Item # | Mount | Size | Wavelength | Retardance | Retardance Accuracy | Clear Aperture | Thickness | Lead Time | Price | Add to cart |
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RHM–050–1550 | Mounted | 0.500 in. (12.70 mm) | 1550 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RHM–050–1064 | Mounted | 0.500 in. (12.70 mm) | 1064 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RHM–050–850 | Mounted | 0.500 in. (12.70 mm) | 850 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RHM–050–780 | Mounted | 0.500 in. (12.70 mm) | 780 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RHM–050–670 | Mounted | 0.500 in. (12.70 mm) | 670 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RHM–050–633 | Mounted | 0.500 in. (12.70 mm) | 633 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RHM–050–532 | Mounted | 0.500 in. (12.70 mm) | 532 | λ/2 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RQM–050–1550 | Mounted | 0.500 in. (12.70 mm) | 1550 | λ/4 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RQM–050–1064 | Mounted | 0.500 in. (12.70 mm) | 1064 | λ/4 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 | |
RQM–050–850 | Mounted | 0.500 in. (12.70 mm) | 850 | λ/4 | ≤ λ/150 | 0.400 in. (10.1 mm) | 0.250 in. (6.35 mm) | 1 - 2 Days | $275.00 |
Precision and NEW Standard Waveplates
Precision Retarders are supplied with a broadband antireflection coating. Optical transmittance of a Precision Retarder is typically greater than 97%. The retardance δ at a wavelength λ that is different from the center wavelength λc is given by:
δ ≈ δc(λc /λ)
where δc is the retardance at λc…
This relationship is very important when using sources which vary in wavelength from their nominal value. The 2 graphs show the retardance behavior as a function of relative wavelength for a quarter- and half-wave retarder, respectively. The Mueller calculus can be used to calculate the transmitted polarization state based upon the retardance differences from the ideal case.
Since polymer retarders are true zero-order devices, they offer the significant advantage of improved angular performance. You can expect less than 1% retardance change over ± 10° incidence angle.
See Details
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SPECIFICATIONS |
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Standard Waveplate |
Precision Waveplate |
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Retarder Material |
Birefringent Polymer |
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Substrate Material |
Fused Silica |
N-BK7 |
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Standard Wavelengths |
532, 632, 670, 780, 850, 1064, and 1550 nm |
Any Wavelength |
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Custom Wavelengths |
400 – 1800 nm (please specify) |
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Standard Retardances |
λ/2 and λ/4 |
Any Retardance |
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Retardance Accuracy |
≤ λ/150 |
≤ λ/350 |
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Retardance Change (at 30˚tilt) |
≤ λ/32 (Half-Wave) and ≤ λ/59 (Quarter-Wave) |
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Transmitted Wavefront Distortion |
≤ λ/3 |
≤ λ/5 |
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Surface Quality (scratch-dig) |
40 – 20 |
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Beam Deviation |
≤ 1 arc-min |
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Reflectance (per surface) |
≤ 0.5 % at normal incidence |
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Threshold |
500 W/cm2, CW |
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Operating Temperature Range |
– 20 ˚C to 50 ˚C |
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Ordering Information – Contact Us or Buy Online
ORDERING INFORMATION |
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Mounted |
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Clear Aperture |
Dimensions |
Thickness |
Part Number |
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Half-Wave |
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0.40 |
Ø 1.00 |
0.25 |
NHM – 050 – λ |
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0.70 |
Ø 1.00 |
0.35 |
NHM – 100 – λ |
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1.20 |
Ø 2.00 |
0.50 |
NHM – 200 – λ |
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Quarter-Wave |
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0.40 |
Ø 1.00 |
0.25 |
NQM – 050 – λ |
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0.70 |
Ø 1.00 |
0.35 |
NQM – 100 – λ |
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1.20 |
Ø 2.00 |
0.50 |
NQM – 200 – λ |
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Unmounted |
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Clear |
Dimensions |
Thickness |
Part Number |
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Half-Wave |
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0.40 |
Ø 0.50 |
0.13 |
NH – 050 – λ |
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0.80 |
Ø 1.00 |
0.26 |
NH – 100 – λ |
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1.60 |
Ø 2.00 |
0.51 |
NH – 200 – λ |
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Quarter-Wave |
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0.40 |
Ø 0.50 |
0.13 |
NQ – 050 – λ |
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0.80 |
Ø 1.00 |
0.26 |
NQ – 100 – λ |
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1.60 |
Ø 2.00 |
0.51 |
NQ – 200 – λ |
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ORDERING INFORMATION – Standard Waveplate, Mounted |
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Clear Aperture |
Dimensions |
Thickness |
Part Number |
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Half-Wave |
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0.40 (10.2) |
Ø1.000 (Ø25.4) |
0.25 (6.35) |
RHM – 050 – λ |
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Quarter-Wave |
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0.40 (10.2) |
Ø1.000 (Ø25.4) |
0.25 (6.35) |
RQM – 050 – λ |
Please specify your center wavelength λ in nanometers when ordering.
Custom sizes and shapes with improved transmitted wavefront distortion and/or beam deviation are available.
Contact us below for a custom quote.
Graphs & Figures
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Basic Polarization Techniques and Devices
Meadowlark Optics Basic Polarization Techniques and Devices © 2005 Meadowlark
