Precision Linear Polarizer
KEY FEATURES
- High extinction ratios
- Excellent surface quality
- Wide angular acceptance
- Low transmitted wavefront distortion
- Ultraviolet, visible, near infrared wavelengths
DESCRIPTION
Meadowlark Optics manufactures Precision Linear Polarizers using dichroic sheet polarizer material laminated between high quality glass substrates. For visible wavelength polarizers, this construction produces a peak-to-valley transmitted wavefront distortion of less than λ/5. Various polarizer materials are used to cover wavelengths within 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. To facilitate use, our Precision Linear Polarizers have the transmission axis marked on the part.
| Specifications - Precision Linear Polarizer | |
| Substrate Material | |
|
Ultraviolet Visible Near Infrared |
UV Grade Fused Silica N-BK7 N-BK7 |
| Polarizer Material | Dichroic Polymer |
| Transmitted Wavefront Distortion (P-V @ 632.8 nm) | |
|
Ultraviolet Visible Near Infrared |
≤ λ/2 ≤ λ/5 ≤ λ/2 |
| Surface Quality (scratch-dig) | 40-20 |
| Beam Deviation | |
|
Ultraviolet Visible Near Infrared |
≤ 2 arc-min ≤ 1arc-min ≤ 2 arc-min |
| Reflectance (per surface, at normal incidence) | |
|
Ultraviolet Visible Near Infrared |
~4.25% (uncoated) ≤ 0.5% ≤ 0.5% |
| Storage Temperature | |
|
Ultraviolet Visible Near Infrared |
-50˚C to +50˚C -50˚C to +50˚C -50˚C to +50˚C |
| Operating Temperature | |
|
Ultraviolet Visible Near Infrared |
-50˚C to +50˚C -50˚C to +50˚C -50˚C to +50˚C |
| Laser Damage Threshold |
1W/cm2, CW 200 mJ/cm2, 20 ns, visible 2 J/cm2, 20 ns, 1064 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. |
|
| Ordering Information - Precision Linear Polarizers | |||
| Mounted | |||
|
Clear Aperture in. [mm] |
Thickness ± 0.020 in. [±0.51 mm] |
Diameter ± 0.005 in. [± 0.13 mm] |
Part Number |
|
0.40 [10.2] |
0.25 [6.35] |
Ø1.00 [Ø25.4] |
DPM-050-UV1 |
|
0.40 [10.2] |
0.25 [6.35] |
Ø1.00 [Ø25.4] |
DPM-050-VIS |
|
0.40 [10.2] |
0.25 [6.35] |
Ø1.00 [Ø25.4] |
DPM-050-NIR1 |
|
0.40 [10.2] |
0.25 [6.35] |
Ø1.00 [Ø25.4] |
DPM-050-NIR2-n |
|
0.70 [17.8] |
0.35 [8.9] |
Ø1.00 [Ø25.4] |
DPM-100-UV1 |
|
0.70 [17.8] |
0.35 [8.9] |
Ø1.00 [Ø25.4] |
DPM-100-VIS |
|
0.70 [17.8] |
0.35 [8.9] |
Ø1.00 [Ø25.4] |
DPM-100-NIR1 |
|
0.70 [17.8] |
0.35 [8.9] |
Ø1.00 [Ø25.4] |
DPM-100-NIR2-n |
|
1.20 [30.5] |
0.50 [12.7] |
Ø2.00 [Ø50.8] |
DPM-200-UV1 |
|
1.20 [30.5] |
0.50 [12.7] |
Ø2.00 [Ø50.8] |
DPM-200-VIS |
|
1.20 [30.5] |
0.50 [12.7] |
Ø2.00 [Ø50.8] |
DPM-200-NIR1 |
|
1.20 [30.5] |
0.50 [12.7] |
Ø2.00 [Ø50.8] |
DPM-200-NIR2-n |
| Unmounted | |||
|
Clear Aperture in. [mm] |
Thickness ± 0.020 in. [±0.51 mm] |
Diameter +0/-0.010 in [+0/-0.25mm] |
Part Number |
|
0.40 [10.2] |
0.13 [3.3] |
Ø0.50 [Ø12.7] |
DP-050-UV1 |
|
0.40 [10.2] |
0.13 [3.3] |
Ø0.50 [Ø12.7] |
DP-050-VIS |
|
0.40 [10.2] |
0.14 [3.6] |
Ø0.50 [Ø12.7] |
DP-050-NIR1 |
|
0.40 [10.2] |
0.14 [3.6] |
Ø0.50 [Ø12.7] |
DP-050-NIR2-n |
|
0.80 [20.3] |
0.26 [6.6] |
Ø1.00 [Ø25.4] |
DP-100-UV1 |
|
0.80 [20.3] |
0.26 [6.6] |
Ø1.00 [Ø25.4] |
DP-100-VIS |
|
0.80 [20.3] |
0.27 [6.9] |
Ø1.00 [Ø25.4] |
DP-100-NIR1 |
|
0.80 [20.3] |
0.27 [6.9] |
Ø1.00 [Ø25.4] |
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 |
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