Polarizer Principles
Meadowlark Optics DOWNLOAD PRINCIPLES Dichroic Polarizers Meadowlark Optics offers an
Precision Linear Polarizer
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$435.00 – $1,145.00
Key Features
- High extinction ratios
- Excellent surface quality
- Wide angular acceptance
- Low transmitted wavefront distortion
- Ultraviolet, visible, near-infrared wavelengths
Meadowlark Optics manufactures Precision Linear Polarizers using dichroic sheet polarizer material laminated between high-quality glass substrates (BK 7 material, λ/10 flat). For visible wavelength polarizers, this construction produces a total transmitted wavefront distortion of less than λ/5.
We use various polarizer materials to cover wavelengths between 320 and 2000 nm. Both visible and near-infrared polarizers are supplied with a high-efficiency, broadband antireflection (AR) coating; single‐layer AR coatings are optional on our ultraviolet polarizers.
Both mounted and unmounted Precision Linear Polarizers are offered as standard products. Meadowlark Optics Precision Linear Polarizers have their transmission axis clearly marked.Common Specifications
Polarizer Material: Dichroic Polymer
Surface Quality: 40 – 20 scratch‐dig
Storage Temperature: ‐ 50˚C to + 50˚C‐
Operating Temperature: ‐ 50˚C to + 50˚C
Laser Damage Threshold:
1 W/cm², CW
200 mJ/cm², 20 ns visible
2 J/cm², 20 ns, 1064 nm
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Item # | Mount | Size | Wavelength | Clear Aperture | Thickness | Lead Time | Price | Quantity | Add to cart |
|---|---|---|---|---|---|---|---|---|---|
DP-050-NIR1 | Unmounted | 0.500 in. (12.70 mm) | 650-790 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DP-050-NIR2-1 | Unmounted | 0.500 in. (12.70 mm) | 650-950 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DP-050-NIR2-2 | Unmounted | 0.500 in. (12.70 mm) | 900-1250 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DP-050-NIR2-3 | Unmounted | 0.500 in. (12.70 mm) | 1200-1700 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DP-050-UV1 | Unmounted | 0.500 in. (12.70 mm) | 300-450 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DP-050-VIS | Unmounted | 0.500 in. (12.70 mm) | 400-700 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DPM-050-NIR1 | Mounted | 0.500 in. (12.70 mm) | 650-790 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DPM-050-NIR2-1 | Mounted | 0.500 in. (12.70 mm) | 650-950 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DPM-050-NIR2-2 | Mounted | 0.500 in. (12.70 mm) | 900-1250 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 | |||
DPM-050-NIR2-3 | Mounted | 0.500 in. (12.70 mm) | 1200-1700 | 0.400 in. (10.16 mm) | 1 - 2 Days | $435.00 |
Precision Linear Polarizer
Both visible and near-infrared polarizers are supplied with a high-efficiency, broadband antireflection (AR) coating; single‐layer AR coatings are optional on our ultraviolet polarizers. Both mounted and unmounted Precision Linear Polarizers are offered as standard products. Meadowlark Optics Precision Linear Polarizers have their transmission axis clearly marked.
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SPECIFICATIONS | |
Substrate Material | |
Ultraviolet | UV Grade Fused Silica |
Polarizer Material | Dichroic Polymer |
Transmitted Wavefront Distortion (P-V @ 632.8 nm) | |
Ultraviolet | ≤ λ/2 |
Surface Quality | 40 – 20 scratch-dig |
Beam Deviation | |
Ultraviolet | ≤ 2 arc-min |
Reflectance (per surface, at normal incidence) | |
Ultraviolet | ~ 4.25 % (uncoated) |
Storage Temperature | |
Ultraviolet | -50˚C to + 50˚C |
Operating Temperature | |
Ultraviolet | – 50˚C to + 50˚C |
Laser Damage Threshold | 1 W/cm², CW |
Ordering Information – Contact Us or Buy Online
ORDERING INFORMATION | |||
Mounted | |||
Clear Aperture | Thickness | Diameter | Part Number |
0.40 | 0.25 | Ø 1.00 | DPM – 050 – UV1 |
0.40 | 0.25 | Ø 1.00 | DPM – 050 – VIS |
0.40 | 0.25 | Ø 1.00 | DPM – 050 – NIR1 |
0.40 | 0.25 | Ø 1.00 | DPM – 050 – NIR2 – n |
0.70 | 0.35 | Ø 1.00 | DPM – 100 – UV1 |
0.70 | 0.35 | Ø 1.00 | DPM – 100 – VIS |
0.70 | 0.35 | Ø 1.00 | DPM – 100 – NIR1 |
0.70 | 0.35 | Ø 1.00 | DPM – 100 – NIR2 – n |
1.20 | 0.50 | Ø 2.00 | DPM – 200 – UV1 |
1.20 | 0.50 | Ø 2.00 | DPM – 200 – VIS |
1.20 | 0.50 | Ø 2.00 | DPM – 200 – NIR1 |
1.20 | 0.50 | Ø 2.00 | DPM – 200 – NIR2 – n |
Unmounted | |||
Clear Aperture | Thickness | Diameter | Part Number |
0.40 | 0.13 | Ø 0.50 | DP – 050 – UV1 |
0.40 | 0.13 | Ø 0.50 | DP – 050 – VIS |
0.40 | 0.14 | Ø 0.50 | DP – 050 – NIR1 |
0.40 | 0.14 | Ø 0.50 | DP – 050 – NIR2 – n |
0.80 | 0.26 | Ø 1.00 | DP – 100 – UV1 |
0.80 | 0.26 | Ø 1.00 | DP – 100 – VIS |
0.80 | 0.27 | Ø 1.00 | DP – 100 – NIR1 |
0.80 | 0.27 | Ø 1.00 | DP – 100 – NIR2 – n |
Custom AR coatings are available on all polarizers. For NIR2 polarizers, choose from the following AR coatings:
NIR2 – 1 covers 650 – 950 nm
NIR2 – 2 covers 900 – 1250 nm
NIR2 – 3 covers 1200 – 1700 nm
Prolonged exposure to strong ultraviolet radiation may damage these polarizers. Custom coatings are available.
Please contact your Meadowlark Optics sales engineer for a custom quote.
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