Meadowlark Optics
Dual-Wavelength Retarder
Dual wavelength retarders made using crystal quartz have traditionally been used to provide the same or different retardances at two wavelengths. Our dual wavelength retarders use polymers instead of quartz and have a slower change in retardance with angle of incidence. The average order is about 20% of that for a comparable quartz dual wavelength retarder. They have a retardance tolerance of ±0.01 waves at both wavelengths. Standard unmounted sizes are 0.50 inches and 1.00 inches, uncoated. Contact a Meadowlark Optics Solutions Engineer for assistance with your unique needs.
Dual-Wavelength Retarder
KEY FEATURES
- Low order
- Wide angular field
- Broad wavelength coverage
- Coated or Uncoated Available
- Mounted or Unmounted Available
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.
Use the arrow icon – – below the preview to enlarge the pdf. Escape key exits fullscreen. Download Data Sheet
Filters Sort results Reset Apply Item # Size Retardance 1 Retardance 2 Lead Time Price DHHM-100-λ/λ 1.000 in. (25.40 mm) λ/2 λ/2 6 weeks To Be Quoted DFFM-100-λ/λ 1.000 in. (25.40 mm) λ λ 6 weeks To Be Quoted DFHM-050-λ/λ 0.500 in. (12.70 mm) λ λ/2 6 weeks To Be Quoted DFHM-100-λ/λ 1.000 in. (25.40 mm) λ λ/2 6 weeks To Be Quoted DFQM-050-λ/λ 0.500 in. (12.70 mm) λ λ/4 6 weeks To Be Quoted DFQM-100-λ/λ 1.000 in. (25.40 mm) λ λ/4 6 weeks To Be Quoted DHFM-050-λ/λ 0.500 in. (12.70 mm) λ/2 λ 6 weeks To Be Quoted DHFM-100-λ/λ 1.000 in. (25.40 mm) λ/2 λ 6 weeks To Be Quoted DHHM-050-λ/λ 0.500 in. (12.70 mm) λ/2 λ/2 6 weeks To Be Quoted DFFM-050-λ/λ 0.500 in. (12.70 mm) λ λ 6 weeks To Be Quoted DHQM-050-λ/λ 0.500 in. (12.70 mm) λ/2 λ/4 6 weeks To Be Quoted DHQM-100-λ/λ 1.000 in. (25.40 mm) λ/2 λ/4 6 weeks To Be Quoted DQFM-050-λ/λ 0.500 in. (12.70 mm) λ/4 λ 6 weeks To Be Quoted DQFM-100-λ/λ 1.000 in. (25.40 mm) λ/4 λ 6 weeks To Be Quoted DQHM-050-λ/λ 0.500 in. (12.70 mm) λ/4 λ/2 6 weeks To Be Quoted DQHM-100-λ/λ 1.000 in. (25.40 mm) λ/4 λ/2 6 weeks To Be Quoted DQQM-050-λ/λ 0.500 in. (12.70 mm) λ/4 λ/4 6 weeks To Be Quoted DQQM-100-λ/λ 1.000 in. (25.40 mm) λ/4 λ/4 6 weeks To Be Quoted DHH-100-λ/λ 1.000 in. (25.40 mm) λ/2 λ/2 6 weeks To Be Quoted DFF-100-λ/λ 1.000 in. (25.40 mm) λ λ 6 weeks To Be Quoted
Item # | Size | Retardance 1 | Retardance 2 | Lead Time | Price |
---|---|---|---|---|---|
DHHM-100-λ/λ | 1.000 in. (25.40 mm) | λ/2 | λ/2 | 6 weeks | To Be Quoted |
DFFM-100-λ/λ | 1.000 in. (25.40 mm) | λ | λ | 6 weeks | To Be Quoted |
DFHM-050-λ/λ | 0.500 in. (12.70 mm) | λ | λ/2 | 6 weeks | To Be Quoted |
DFHM-100-λ/λ | 1.000 in. (25.40 mm) | λ | λ/2 | 6 weeks | To Be Quoted |
DFQM-050-λ/λ | 0.500 in. (12.70 mm) | λ | λ/4 | 6 weeks | To Be Quoted |
DFQM-100-λ/λ | 1.000 in. (25.40 mm) | λ | λ/4 | 6 weeks | To Be Quoted |
DHFM-050-λ/λ | 0.500 in. (12.70 mm) | λ/2 | λ | 6 weeks | To Be Quoted |
DHFM-100-λ/λ | 1.000 in. (25.40 mm) | λ/2 | λ | 6 weeks | To Be Quoted |
DHHM-050-λ/λ | 0.500 in. (12.70 mm) | λ/2 | λ/2 | 6 weeks | To Be Quoted |
DFFM-050-λ/λ | 0.500 in. (12.70 mm) | λ | λ | 6 weeks | To Be Quoted |
DHQM-050-λ/λ | 0.500 in. (12.70 mm) | λ/2 | λ/4 | 6 weeks | To Be Quoted |
DHQM-100-λ/λ | 1.000 in. (25.40 mm) | λ/2 | λ/4 | 6 weeks | To Be Quoted |
DQFM-050-λ/λ | 0.500 in. (12.70 mm) | λ/4 | λ | 6 weeks | To Be Quoted |
DQFM-100-λ/λ | 1.000 in. (25.40 mm) | λ/4 | λ | 6 weeks | To Be Quoted |
DQHM-050-λ/λ | 0.500 in. (12.70 mm) | λ/4 | λ/2 | 6 weeks | To Be Quoted |
DQHM-100-λ/λ | 1.000 in. (25.40 mm) | λ/4 | λ/2 | 6 weeks | To Be Quoted |
DQQM-050-λ/λ | 0.500 in. (12.70 mm) | λ/4 | λ/4 | 6 weeks | To Be Quoted |
DQQM-100-λ/λ | 1.000 in. (25.40 mm) | λ/4 | λ/4 | 6 weeks | To Be Quoted |
DHH-100-λ/λ | 1.000 in. (25.40 mm) | λ/2 | λ/2 | 6 weeks | To Be Quoted |
DFF-100-λ/λ | 1.000 in. (25.40 mm) | λ | λ | 6 weeks | To Be Quoted |
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) |
You will not be charged until our Solutions Team has verified that your requested retardance-wavelength combination is possible. We will then contact you with your quote.
Filters Sort results Reset Apply Item # Size Retardance 1 Retardance 2 Lead Time Price Dual Wavelength Retarder 0.500 in. (12.70 mm) ⋅ 1.000 in. (25.40 mm) λ ⋅ λ/2 ⋅ λ/4 λ ⋅ λ/2 ⋅ λ/4 6 weeks $2,179.00–$2,464.00
Item # | Size | Retardance 1 | Retardance 2 | Lead Time | Price |
---|---|---|---|---|---|
Dual Wavelength Retarder | 0.500 in. (12.70 mm) ⋅ 1.000 in. (25.40 mm) | λ ⋅ λ/2 ⋅ λ/4 | λ ⋅ λ/2 ⋅ λ/4 | 6 weeks | $2,179.00–$2,464.00 |