Meadowlark Optics
Dual Wavelength Retarder
KEY FEATURES
- Low order
- Wide angular field
- Broad wavelength coverage
- Coated or Uncoated Available
- Mounted or Unmounted Available
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KEY FEATURES
Available Only By Quote
If component has options, configure first to add to cart or quote.
Item # | Size | Retardance 1 | Retardance 2 | Lead Time | Price NOTE Price subject to change if alternate materials are required to fulfill your specified requirements. | Add to Quote |
|---|---|---|---|---|---|---|
1.000 in. (25.40 mm) | λ/2 | λ/2 | 6 weeks | $2,464.00 | ||
1.000 in. (25.40 mm) | λ | λ | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ | λ/2 | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ | λ/2 | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ | λ/4 | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ | λ/4 | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ/2 | λ | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ/2 | λ | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ/2 | λ/2 | 6 weeks | $2,259.00 | ||
0.500 in. (12.70 mm) | λ | λ | 6 weeks | $2,259.00 | ||
0.500 in. (12.70 mm) | λ/2 | λ/4 | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ/2 | λ/4 | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ/4 | λ | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ/4 | λ | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ/4 | λ/2 | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ/4 | λ/2 | 6 weeks | $2,464.00 | ||
0.500 in. (12.70 mm) | λ/4 | λ/4 | 6 weeks | $2,259.00 | ||
1.000 in. (25.40 mm) | λ/4 | λ/4 | 6 weeks | $2,464.00 | ||
1.000 in. (25.40 mm) | λ/2 | λ/2 | 6 weeks | $2,384.00 | ||
1.000 in. (25.40 mm) | λ | λ | 6 weeks | $2,384.00 |
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Dual wavelength retarders can provide the same retardance at two wavelengths that are separated in wavelength by more than the span covered by an achromatic retarder. They can also provide different specified retardances at two different wavelengths. Traditionally these retarders have been made using crystal quartz and are multiorder retarders at both wavelengths.
Our dual wavelength retarders use polymers instead. They are usually much lower order and consequently have a slower change in retardance with angle of incidence as shown in the graph. On average the order is about 20% of that for a comparable quartz dual wavelength retarder. Call for a quote on a custom coating on these normally uncoated retarders. The retardance tolerance is ±0.01waves at both wavelengths. Many custom combinations not listed in the catalog are available. Please call for a quote on your custom requirement. Standard unmounted sizes are 0.50 inches and 1.00 inches.
Custom anti‐reflection coatings to provide less than 0.5% reflection at both wavelengths are available.
Item # NOTE R1,R2 = F for full wave, Q for quarter wave, H for half wave d = Diameter (e.g. ‐100 is 1″ OD)λ1,λ2 = Your design wavelengths. (e.g. 488 nm, 780 nm, etc.) Example: DQH‐200‐λ1,λ2 = > 2-inch waveplate, Quarter @ λ1, Half @ λ2. | Mounting | Dimensions | Retardance 1 | Retardance 2 | Clear Aperture | Thickness NOTE Thickness for retarder not including mount |
|---|---|---|---|---|---|---|
DFF-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ | λ | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DFF-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ | λ | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DFH-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ | λ/2 | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DFH-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ | λ/2 | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DFQ-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ | λ/4 | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DFQ-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ | λ/4 | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DHF-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ/2 | λ | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DHF-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ/2 | λ | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DHH-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ/2 | λ/2 | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DHH-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ/2 | λ/2 | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DHQ-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ/2 | λ/4 | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DHQ-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ/2 | λ/4 | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DQF-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ/4 | λ | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DQF-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ/4 | λ | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DQH-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ/4 | λ/2 | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DQH-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ/4 | λ/2 | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DQQ-050-λ/λ | Unmounted | 0.500 in. (12.70 mm) | λ/4 | λ/4 | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DQQ-100-λ/λ | Unmounted | 1.000 in. (25.40 mm) | λ/4 | λ/4 | 0.800 in. (20.3 mm) | 0.270 in. (6.90 mm) |
DFFM-050-λ/λ | Mounted | 0.500 in. (12.70 mm) | λ | λ | 0.400 in. (10.1 mm) | 0.140 in. (3.56 mm) |
DFFM-100-λ/λ | Mounted | 1.000 in. (25.40 mm) | λ | λ | 0.700 in. (17.7 mm) | 0.270 in. (6.90 mm) |
