Optics Publications

Welcome to the Moxtek® Optics Publication page. In this section you will find all Moxtek employee publications in relation to Optics. Optics is a division of physics that studies the properties and behavior of light. These publications explain Moxtek employee findings and developments in this field of study.


Infrared wire grid polarizers: metrology and modeling

Broad and narrow-band wire grid polarizer (WGP) products suitable for MWIR and LWIR applications requiring high contrast were developed on antireflection (AR) coated silicon using Moxtek® nanowire patterning capabilities. Accurate metrology was gathered in both transmission and reflection from the SWIR to LWIR using a combination of FTIR and dispersive spectrometers, as well as laser-based light sources. The WGP structures were analyzed using SEM, FIB, and STEM techniques and optical data was derived from IR VASE, transmission, and reflectance measurements. Modeling of device performance was achieved using rigorous coupled wave analysis. Laser damage thresholds were determined and various damage mechanisms identified.

 

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Nanowire Grid Polarizers for Mid- and Long-Wavelength Infrared Applications Paper

Moxtek® has developed high performance infrared wire grid polarizers on AR-coated silicon suitable for MWIR and LWIR applications. This paper describes preliminary SIR3-5 and SIR7-15 product testing and performance.


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Nanowire Grid Polarizers for Mid- and Long-Wavelength Infrared Applications Poster

Moxtek® has developed high performance infrared wire grid polarizers on AR-coated silicon suitable for MWIR and LWIR applications. This poster describes preliminary SIR3-5 and SIR7-15 product testing and performance.


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An Improved Wire Grid Polarizer For Thermal Infrared Applications Paper

Moxtek® has developed a high contrast infrared wire grid polarizer on AR-coated silicon suitable for LWIR applications.  This paper describes preliminary SIR7-15 product testing and performance.

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An Improved Wire Grid Polarizer For Thermal Infrared Applications Poster

Moxtek® has developed a high contrast infrared wire grid polarizer on AR-coated silicon suitable for LWIR applications. This poster describes preliminary SIR7-15 product testing and performance.

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New, High Performance, Durable Polarizers for Projection Displays

Wire-grid polarizers are now available for broadband visible applications. This type of polarizer is very attractive for projection display applications because of its high efficiency, high contrast, and extreme temperature and flux tolerance.

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An Improved Polarizing Beamsplitter LCOS Projection Display Based on Wire-Grid Polarizers

Moxtek® has developed a new polarizer technology for the visible spectrum based on the technology of nanometer-scale wire-grids. They have named their technology ProFlux® Polarizers. These polarizers are extremely durable in the LCOS and transmissive light valve projector environment. They also offer very attractive optical performance characteristics as beam splitters in the imaging path, especially for an LCOS-type system.

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The Display Applications and Physics of the ProFlux® Wire-Grid Polarizer

Wire-grid polarizers have been known in theory and in certain applications in infra-red and radio for many years. They have not found application in visible optics until now because of the manufacturing challenge involved in producing the nanostructures required. This paper addresses how Moxtek has successfully solved this challenge with a volume manufacturing process capable of producing the required nano-scale wire-grid on many substrate materials. Moxtek has developed the physics of wire-grid polarizers to a point beyond that found in the existing literature.

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Twisted Nematic Reflective Display with Internal Wire Grid Polarizer

We studied the optical performance of reflective wire grid polarizer designed for visible light. The polarizer reflects E-polarization and transmits H-polarization with low losses. When used in a twisted nematic (TN) device as a back polarizer it enhances the brightness and provides high contrast ratio at wide viewing angles. By placing the wire grid polarizer within the cell, viewing parallax is eliminated. The polarizer can also be used as the rear electrode.

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A Comparison to Existing Technologies

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An Image Quality Wire-Grid Polarizing Beamsplitter

Moxtek® introduces a flat ProFlux® wire-grid polarizing beam splitter for use in projection systems where preservation of image quality is required upon reflection at the PBS. This paper discusses advantages obtainable when using the ProFlux flat PBS in projection display architectures, and reasons for these advantages. Specifically, these advantages include high system contrast, simplified designs with various LCOS panels, and inherent high durability.

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ProFlux®Posters

This is a compilation of all ProFlux® Polarizer posters.

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High-Resolution Stereoscopic TFT-LCD with Wire-Grid Polarizer

Moxtek recently developed a 5.5 inch, VGA (640×480×RGB), stereoscopic 3D display using a precisely patterned wire grid polarizer (WGP) with rows of alternating polarization angle. Such a wire grid polarizer is invisible without the polarizer and thus a 2D/3D convertible display can be formed. The proposed structure is free of any limitations on both viewing angle and viewing distance inherent in the conventional stereoscopic displays, whereby enabling several persons to view stereoscopic image simultaneously. Because the proposed structure does not use conventional polarization film of TFT-LCD panel, it can be manufactured with low-cost.

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