Wire-Grid Pixelated Polarizers

Wire-Grid Pixelated Polarizers
Wire-Grid Pixelated Polarizers
PIX Series Datasheet
Pixelated polarizers enable real-time, clear imaging when speed and resolution is
critical. Pixelated polarizers are designed using Moxtek® Nanowire® Technology
and are available as two, three and four-state devices in both visible and IR
wavelengths. Customizable pixel pitches are available for specific CCD/CMOS
sensor arrays. In addition, thermal imaging combined with polarization provides
enhanced imaging for target identification, facial recognition, and identification of
oil on water.
Features
Close-up of 4 State Pixelated Polarizer
Applications
• Polarimetry and 3D Cameras
• Biometric facial recognition
• Biological Analysis
Cell differentiation
• Polarization Microscopy
• Polarized Fiber-optic Probes
• Remote Sensing
• Target discrimination
• Interferometry
• Pollution Detection
Benefits
Brightness and contrast uniformity
Nanowire® Technology
>20˚ half angle without performance loss
Wavelength and AOI independent
UV and IR wavelengths
User defined geometries
Pixelation
Low cross-talk
Accurate registration
Allows for single camera systems
Direct Pixel-to-Pixel Overlay
Pixelated polarizers are designed to align with CCD/CMOS camera arrays.
Pixelated polarization enables real-time 3D imaging without the camera image
overlay difficulty. Traditional 3D imaging. requires two images be taken with
different polarizations and two cameras precisely aligned to each other. The
resulting image data must then be carefully overlaid and aligned which requires
added time, equipment, space, and precision.
Courtesy ESA. To meet the extreme polishing and
surface requirements of the James Webb Telescope,
a new interferometer was developed with advanced,
state-of–the-art defining capabilities using Moxtek’s
pixelated polarizer technology.
General Specifications
Substrate Materials Display Grade Glass
Silicon (for MW and LWIR)
Transmission >80% @ 550nm at pixel center
Based on pixel size
Contrast Ratio >200:1 @ 633nm at pixel center
Based on pixel size
Bandwidth 350nm to 3μm
AR Coating Visible spectrum
Substrate Thickness 0.7mm ± 0.07
Index of Refraction
3 to 15μm (based on AR coating design)
Custom engineered for application
0.675 ± 0.095 mm
435.8nm: 1.5198
10.33nm: 3.421
643.8nm: 1.5078
4.132nm: 3.427
Thermal Expansion 31.7 x 10-7/˚C (0-300˚C)
RoHS Compliant
2.6 x 10-6/˚C
Compliant
Application Example of Dynamic Quantitative Phase Imaging
The pixelated phase mask sensor enables a number of different types of images to be obtained simultaneously as
illustrated in images of a protozoa in the figure below.
Images of a protozoa determined from pixelated phase data. (a) Brightfield (irradiance/intensity). (b) Phase contrast (interference – a single
interferogram). (c) Phase gradient magnitudes (simulated dark field). (d) Simulated DIC (x gradient). (e) Pseudo-colored optical thickness (from
phase). (f) 3D optical thickness (from phase).
Dynamic quantitative phase imaging for biological objects using a pixelated phase mask, Biomedical Optics Express, Vol. 3, Issue 11, pp. 2866-2880 (2012)
Standard Dimensional Specifications
Pixel Pitch (X, Y):
Feature Dimensions(x, y):
Feature Spacing (S):
Max Number of Polarization Axes:
9.0µm, 8.0, 7.4µm standard, custom pitches available
Pixel aperture dimensions (typical pitch: -1µm)
≥1µm
4 angle (α, β, γ, and δ) line scan row arrangement available also
452 West 1260 North / Orem, UT 84057
Phone 801.225.0930 / Fax 801.221.1121
www.moxtek.com
[email protected]
MOXTEK
®
The U.S. Department of State has determined that Pixelated Polarizers are not ITAR-controlled.
Pixelated Polarizers that extend the usable spectrum beyond 3 microns (into the MWIR and LWIR
ranges) are EAR-controlled with an ECCN of 0A521. Pixelated Polarizers that do not extend the
usable spectrum beyond 3 microns are EAR-controlled with an ECCN of EAR99 (See CJ 142-14).
OPT-DATA-1005, Rev E
Copyright © 2015, 2016, Moxtek.
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