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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