Polarizer Principles
Meadowlark Optics DOWNLOAD PRINCIPLES Dichroic Polarizers Meadowlark Optics offers an
Broadband Beamsplitting Polarizer
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$593.00 – $678.00
Key Features
- Broadband use
- Reflective polarizer
- Large acceptance angle
For applications involving broadband or tunable wavelength sources, Meadowlark Optics presents a line of Broadband Beamsplitting Polarizers covering the visible to near infrared region. These cubes offer increased utility for a range of polarization needs. As with the Laser Line Beamsplitting Polarizers, two usable polarization forms result, conveniently separated by 90°.
For unpolarized input, incident light will be equally split, 50% transmitted and reflected. Varying the input polarization axis will change the split ratio. These broadband designs require well-collimated input and accurate angular alignment for optimal performance. All four entrance and exit faces are antireflection coated to minimize losses.
Common Specifications
Substrate Material: SF 2
Surface Quality: 40 – 20 scratch-dig
Surface Flatness: ≤ λ/8 (@ 633 nm)
Beam Deviation: ≤ 3 arc-min
Dimension Tolerance: ≤ + 0 / – 0.20 mm
Reflectance (per surface): ≤ 0.5 % avg
Contrast Ratio: ≥ 500:1 (Average)
Transmission (p-polarized light): ≥ 90 % avg
Transmission (s-polarized light): ≥ 99.8 % avg
Clear Aperture: Central 85 % diameter
Temperature Range: – 50 ˚C to + 80 ˚C
Laser Damage Threshold: ≥ 0.5 J/cm² (10 ns)
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Item # | Mount | Size | Wavelength | Reflectivity | Clear Aperture | Lead Time | Price | Quantity | Add to cart |
|---|---|---|---|---|---|---|---|---|---|
BB-050-IR3 | Unmounted | 0.500 x 0.500 x 0.500 in. (12.70 x 12.70 x 12.70 mm) | 1200-1600 | ≥ 0.425 in. (10.80 mm) centered | 2 weeks | $593.00 | |||
BB-050-VIS | Unmounted | 0.500 x 0.500 x 0.500 in. (12.70 x 12.70 x 12.70 mm) | 440-680 | ≥ 0.425 in. (10.80 mm) centered | 2 weeks | $593.00 | |||
BB-050-IR1 | Unmounted | 0.500 x 0.500 x 0.500 in. (12.70 x 12.70 x 12.70 mm) | 650-1000 | ≥ 0.425 in. (10.80 mm) centered | 2 weeks | $593.00 | |||
BB-050-IR2 | Unmounted | 0.500 x 0.500 x 0.500 in. (12.70 x 12.70 x 12.70 mm) | 900-1400 | ≥ 0.425 in. (10.80 mm) centered | 2 weeks | $593.00 | |||
BB-100-IR3 | Unmounted | 1.000 x 1.000 x 1.000 in. (25.40 x 25.40 x 25.40 mm) | 1200-1600 | ≥ 0.850 in. (21.59 mm) centered | 2 weeks | $678.00 | |||
BB-100-VIS | Unmounted | 1.000 x 1.000 x 1.000 in. (25.40 x 25.40 x 25.40 mm) | 440-680 | ≥ 0.850 in. (21.59 mm) centered | 2 weeks | $678.00 | |||
BB-100-IR1 | Unmounted | 1.000 x 1.000 x 1.000 in. (25.40 x 25.40 x 25.40 mm) | 650-1000 | ≥ 0.850 in. (21.59 mm) centered | 2 weeks | $678.00 | |||
BB-100-IR2 | Unmounted | 1.000 x 1.000 x 1.000 in. (25.40 x 25.40 x 25.40 mm) | 900-1400 | ≥ 0.850 in. (21.59 mm) centered | 2 weeks | $678.00 |
Broadband Beamsplitting Polarizer
See Details
SPECIFICATIONS | |
Wavelength Range | |
Visible | 440 – 680 nm |
Substrate Material | SF 2 |
Surface Quality | 40 – 20 scratch-dig |
Surface Flatness | ≤ λ/8 (@ 633 nm) |
Beam Deviation | ≤ 3 arc-min |
Dimension Tolerance | ≤ + 0 / – 0.20 mm |
Reflectance (per surface) | ≤ 0.5 % avg |
Contrast Ratio | ≥ 500:1 (Average) |
Transmission (p-polarized light) | ≥ 90 % avg |
Clear Aperture | Central 85 % diameter |
Temperature Range | – 50 ˚C to + 80 ˚C |
Laser Damage Threshold | ≥ 0.5 J/cm² (10 ns) |
Prolonged exposure to strong ultraviolet radiation may damage these polarizers.
Ordering Information – Contact Us or Buy Online
ORDERING INFORMATION | ||
Clear Aperture | Dimensions | Part Number |
Visible (440 – 680 nm) | ||
0.425 × 0.425 × 0.425 | 0.50 × 0.50 × 0.50 | BB – 050 – VIS |
0.85 × 0.85 × 0.85 | 1.00 × 1.00 × 1.00 | BB – 100 – VIS |
Near IR1 (650 – 1000 nm) | ||
0.425 × 0.425 × 0.425 | 0.50 × 0.50 × 0.50 | BB – 050 – IR1 |
0.85 × 0.85 × 0.85 | 1.00 × 1.00 × 1.00 | BB – 100 – IR1 |
Near IR2 (900 – 1400 nm) | ||
0.425 × 0.425 × 0.425 | 0.50 × 0.50 × 0.50 | BB – 050 – IR2 |
0.85 × 0.85 × 0.85 | 1.00 × 1.00 × 1.00 | BB – 100 – IR2 |
Near IR3 (1200 – 1600 nm) | ||
0.425 × 0.425 × 0.425 | 0.50 × 0.50 × 0.50 | BB – 050 – IR3 |
0.85 × 0.85 × 0.85 | 1.00 × 1.00 × 1.00 | BB – 100 – IR3 |
Custom sizes available. Please contact one of our Solutions Engineers for more information.
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