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Pixelated Micropolarizer Array Based on Carbon Nanotube Films.

Hui Zhang^1,2,3, Yanji Yi^1,2,3, Yibin Wang^1,2,3

¹Chinese Academy of Sciences Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230022, China.

Nanomaterials (Basel, Switzerland)

|February 11, 2023

Summary

A novel micropolarizer array (MPA) using carbon nanotube (CNT) films enables real-time polarization measurement in scientific cameras. This thin, dual-tier MPA offers high polarization degrees and reduced crosstalk for broad spectral applications.

Keywords:

material of polarization micropolarizer array polarimetry polarization-sensitive devices

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Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Published on: July 2, 2012

Area of Science:

Optics and Photonics
Materials Science

Background:

Polarimetry is crucial for extracting light polarization parameters.
Conventional micropolarizer arrays (MPAs) face limitations in thickness and spectral range.

Purpose of the Study:

To propose and characterize a novel carbon nanotube (CNT)-based MPA for scientific cameras.
To demonstrate real-time polarization measurement capabilities.

Main Methods:

Fabrication of a dual-tier CNT pixel plane with 0° and 45° orientations.
Characterization of the MPA's thickness, pixel size, and degree of polarization.
Utilizing CNTs' inherent anisotropy and spectral selectivity.

Main Results:

Achieved a high degree of polarization of 93% at 632 nm.
Developed a dual-tier CNT-MPA with a thickness under 2 μm and pixel size of 7.45 μm × 7.45 μm.
Demonstrated potential for reduced crosstalk compared to conventional MPAs.

Conclusions:

The CNT-based MPA is a promising real-time polarimeter for scientific imaging.
The design offers advantages in thinness, reduced crosstalk, and wide spectral applicability.
Further development can enhance its integration into advanced scientific cameras.