Precision Linear Polarizer
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.
Key Features
High extinction ratios
Excellent surface quality
Wide angular acceptance
Low transmitted wavefront distortion
Ultraviolet, visible, near infrared wavelengths
Polarization Suite
Linear Polarizers
Precision Linear Polarizer
High Contrast Linear Polarizer
Ultra‐High Contrast Linear Polarizer
Glan‐Thompson Polarizer
Ultra Broadband Polarizer
MWIR Polarizer
Deep Ultraviolet Polarizer
Beamsplitting Polarizers
Versalight Polarizer
Wire Grid Beam Splitter
Laser Line Beamsplitting Polarizer
Broadband Beamsplitting Polarizer
Polarizing Bandpass Filter
Circular Polarizers
Dichroic Circular Polarizer
Beam Separator
SPECIFICATIONS
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
40 – 20 scratch‐dig
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
ORDERING INFORMATION
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 mm)
0.25 (6.35 mm)
Ø1.00 (Ø25.4 mm)
DPM – 050 – UV1
0.40 (10.2 mm)
0.25 (6.35 mm)
Ø1.00 (Ø25.4 mm)
DPM – 050 – VIS
0.40 (10.2 mm)
0.25 (6.35 mm)
Ø1.00 (Ø25.4 mm)
DPM – 050 – NIR1
0.40 (10.2 mm)
0.25 (6.35 mm)
Ø1.00 (Ø25.4 mm)
DPM – 050 – NIR2 – n
0.70 (17.8 mm)
0.35 (8.9 mm)
Ø1.00 (Ø25.4 mm)
DPM – 100 – UV1
0.70 (17.8 mm)
0.35 (8.9 mm)
Ø1.00 (Ø25.4 mm)
DPM – 100 – VIS
0.70 (17.8 mm)
0.35 (8.9 mm)
Ø1.00 (Ø25.4 mm)
DPM – 100 – NIR1
0.70 (17.8 mm)
0.35 (8.9 mm)
Ø1.00 (Ø25.4 mm)
DPM – 100 – NIR2 – n
1.20 (30.5 mm)
0.50 (12.7 mm)
Ø2.00 (Ø50.8 mm)
DPM – 200 – UV1
1.20 (30.5 mm)
0.50 (12.7 mm)
Ø2.00 (Ø50.8 mm)
DPM – 200 – VIS
1.20 (30.5 mm)
0.50 (12.7 mm)
Ø2.00 (Ø50.8 mm)
DPM – 200 – NIR1
1.20 (30.5 mm)
0.50 (12.7 mm)
Ø2.00 (Ø50.8 mm)
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 mm)
0.13 (3.3 mm)
Ø0.50 (Ø12.7 mm)
DP – 050 – UV1
0.40 (10.2 mm)
0.13 (3.3 mm)
Ø0.50 (Ø12.7 mm)
DP – 050 – VIS
0.40 (10.2 mm)
0.14 (3.6 mm)
Ø0.50 (Ø12.7 mm)
DP – 050 – NIR1
0.40 (10.2 mm)
0.14 (3.6 mm)
Ø0.50 (Ø12.7 mm)
DP – 050 – NIR2 – n
0.80 (20.3 mm)
0.26 (6.6 mm)
Ø1.00 (Ø25.4 mm)
DP – 100 – UV1
0.80 (20.3 mm)
0.26 (6.6 mm)
Ø1.00 (Ø25.4 mm)
DP – 100 – VIS
0.80 (20.3 mm)
0.27 (6.9 mm)
Ø1.00 (Ø25.4 mm)
DP – 100 – NIR1
0.80 (20.3 mm)
0.27 (6.9 mm)
Ø1.00 (Ø25.4 mm)
DP – 100 – NIR2 – n