Pixelated Polarizers
Pixelated polarizers are designed to incorporate different polarization angles into a single array, which can be aligned with CCD/CMOS camera arrays, enabling real-time polarimetry. Traditional polarimetry requires multiple images be taken with different polarizations and multiple cameras precisely aligned to each other. The resulting image data must then be carefully overlaid and aligned which requires added time, equipment, and precision. Pixelated polarizers enable real- time imaging when speed and resolution is critical. Recently, Moxtek has further developed a NanoImprint Lithography (NIL) fabrication process, rendering improved performance and uniformity across pixels while allowing potential wafer level imprint with alignment. Contact Moxtek for polarizer to camera attachment options.
Features
Benefits
Nanowire® Technology
Superior Transmission and Contrast
±20˚ AOI Without Depolarization
Wavelength and AOI Independent
Visible and IR Wavelengths
Broadband Visible and IR Wavelengths
NIL Pixelation
User Defined Pixel Geometries and Layouts
Uniform Cross-Pixel Performance
Potential Wafer-Level Imprint with Alignment
Inorganic
High Heat Resistance
Applications
• Polarimetry and 3D Cameras
• Biometric Facial Recognition
• Polarization Microscopy
• Polarized Fiber-Optic Probes
• Remote Sensing
• Interferometry
• Pollution Detection
Micro and Nano Optics
Standard Product Options
Product Name
Description
PIX058C
5.86µm pixels
PIX065C
6.5µm pixels
PIX074C
7.4µm pixels
PIX080C
8.0µm pixels
PIX090C
9.0µm pixels
Standard products come with visible AR Coating. For non-AR coated requirement, please contact Moxtek for more information.
Other customized pixel sizes are available. Please contact Moxtek for more information.
4 state polarizers are standard.
General Specifications
Visible Options
IR Options
Wavelength Range:
400-700nm (400-2500nm upon request)
3-5µm, 8-12µm
Substrate Type:
Display Grade Glass
Silicon
Thickness:
0.7 ± 0.07mm
0.675 ± 0.095mm
Index of Refraction:
435.8nm: 1.5198
643.8nm: 1.5078
10.33µm: 3.421
4.132µm: 3.427
Thermal Expansion:
31.7 x 10-7/˚C (0-300˚C)
2.6 x 10-6/˚C
AOI (Angle of Incidence):
0˚± 20˚
0˚± 20˚
AR Coating:
Depending on operation wavelength
Depending on operation wavelength
Maximum Temperature:
200˚C, > -5,000 hours
200˚C, > -5,000 hours
Transmission Axis (TA):
Referenced to long side
Referenced to long side
TA Tolerance:
± 1˚
± 1˚
RoHS:
Compliant
Compliant
Transmission:
>80% @ 650nm at pixel center
Contact for information
Contrast Ratio:
>200:1 @ 650nm at pixel center
Contact for information
Standard Dimensional Specifications
Pixel Pitch (X, Y): 5.5, 5.8, 5.9, 6.5, 7.4, 8.0, 8.8., 9.0, 9.8, 10, 15, 16.5µm standard (custom pitch sizes available)
Feature Dimensions(x, y):Pixel aperture dimensions (aperture = typical pitch -1μm)
Application Examples of Quantitative Thermal Polarization Imaging
The pixelated polarizer, when attached to an image sensor, enables a number of different types of images to be obtained simultaneously as illustrated in the figures below. Data taken with Pyxis LWIR imagers and courtesy of Polaris Sensor Technologies (PolarisSensor.com).
(a) Brightfield and eTherm (Thermal + Polarization) images identifying oil spill after a marina fire near Huntsville, AL (b) Thermal and eTherm images for target identification. (c) Visible, Thermal, Polarization and processed eTherm images showing different data products in a target identification application.
商品属性 [波长范围] 400-700nm/3-5µm, 8-12µm