RETRACTED: Modeling and imprint fabrication of an infrared wire-grid polarizer with an antireflection grating structure

Yamada, Itsunari; Yamashita, Naoto; Einishi, Toshihiko; Saito, Mitsunori; Fukumi, Kohei; Nishii, Junji

doi:10.1016/j.infrared.2014.01.002

Cited by 10 publications

(6 citation statements)

References 26 publications

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“…Ultrathin polarizers have been extensively studied both theoretically and experimentally including using metamaterials, metasurfaces, wire-grid polarizers and guided resonance-based polarizers, as indispensable elements in integrated optical systems [41][42][43]. However, the extinction ratio and the efficiency of the polarizers are greatly restricted by the considerable metallic losses, in particular, in the shorter wavelength ranges for the wire-grid polarizers.…”

Section: Ultrathin Graphene Oxide Polarizermentioning

confidence: 99%

“…Also the thickness of the GO thin film is optimized at 100 nm, not only to support the guided resonances, but also to reduce the linear absorptions. As a result, the transmittance efficiency as large as 80% of the ultrathin GO polarizer has been achieved, surpassing the performance of the metallic wire-grid or metasurface polarizers [41][42][43]. The working wavelength can be tuned over a broadband range from the visible (600 nm) to the NIR (1.6 µm) due to the dispersionless nature of the GO film, largely extending the current working wavelength range (1.5 µm) of silicon or indium phosphide materials.…”

Section: Ultrathin Graphene Oxide Polarizermentioning

confidence: 99%

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Laser trimming of graphene oxide for functional photonic applications

Zheng¹,

Lin²,

Yang³

et al. 2017

J. Phys. D: Appl. Phys.

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This article reviews the recent photonic applications on graphene oxide and reduced graphene oxide films via the direct laser printing method. Attention has been paid to the unique optical property modulations of graphene oxide films during the laser reduction process, which enable a wide range of functional photonic and optoelectronic devices. The exotic properties of graphene oxide during the laser reduction process, including the tunable dispersion relation, flexible patterning capability, surface functionalization possibility, wavefront shaping ability, and the mechanical robustness and strength, make it a promising integratable platform for the next-generation ultrathin, lightweight and flexible photonic and optoelectronic applications.

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Section: Ultrathin Graphene Oxide Polarizermentioning

confidence: 99%

Section: Ultrathin Graphene Oxide Polarizermentioning

confidence: 99%

Laser trimming of graphene oxide for functional photonic applications

Zheng¹,

Lin²,

Yang³

et al. 2017

J. Phys. D: Appl. Phys.

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“…They can be integrated directly onto the focal plane array (FPA) of an IR imaging system, and used for measuring synchronously the Stokes vector components within a single image frame. [5][6][7] Such devices can overcome the challenges posed by unique natural environment in polarization detection and improve the reconnaissance capability of MWIR detection. [8][9][10] Baker et al 11 integrated the metal WGPs with four polarization directions into a camera, whose edge detection sensitivity is superior.…”

Section: Introductionmentioning

confidence: 99%

Design of an Au–Pt–Ti wire-grid polarizer based on midinfrared pixelated micropolarizer arrays

Shaohu

Zhao

et al. 2023

Opt. Eng.

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Polarization information is widely used in complex applications such as industrial detection, biomedicine, earth remote sensing, modern military, and aerospace. However, traditional polarization devices cannot adequately satisfy the requirements of increasingly complex environments. A subwavelength grating consisting of three types of materials, namely, aurum, platinum, and titanium, was designed to improve the performance of the polarimetric components of a midwavelength infrared polarization imaging system. The morphological structure parameters of the designed grating were optimized by analyzing the effects on the polarization performance through the rigorous coupled wave theory. The proposed Au-Pt-Ti composite grating could address the problem of grating peeling off from the substrate because of high temperature during preparation. The composite grating has some advantages such as high mechanical stability, lower oxidation, and great polarization properties. The diffraction can be reduced and the extinction ratio (ER) can be effectively enhanced in a midwave infrared (MWIR) focal plane array through appropriate reduction in the termination edge spacing and the addition of a gold frame between polarizer pixels. The grating with a period of 0.8 μm was designed for application in the MWIR band. The fill factor was 0.5 and the depths of Au-Pt-Ti in the grating region were 0.44 μm. Each pixel was separated by a 3.2-μm wide gold frame. Modeling results revealed that the ER of grating was higher than 28.68 and 32.77 above the incident wavelengths of 3.89 and 4.57 μm, respectively. Additionally, excellent polarization capability was observed over a wide MWIR spectrum. Furthermore, the current manufacturing process level may generate polarizers with the aforementioned structural specifications.

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Section: Introductionmentioning

confidence: 99%

“…Conversely, when the horizontal polarization direction of incident electromagnetic wave is parallel to the polarized wire grid, the horizontal polarized electromagnetic wave is reflected and the vertical polarized electromagnetic wave transmits completely. 2,3 The winding machine in this paper is used to manufacture the polarized wire grid and it has experienced the process of mechanical, semiautomatic, and automatic system. Currently, the rotation motion of grid frame and the winding motion are controlled by electric mode, which can guarantee an accurate fit between two motions, achieve high-precision manufacturing, and increase productivity dramatically.…”

Section: Introductionmentioning

confidence: 99%

A winding machine for polarized wire grid of microwave radiometer calibration

Shen

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part G:

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Polarized wire grid has been used as a low-energy polarization separator in many calibration systems. A novel machine was developed for winding the polarized wire grids with different sizes and shapes. In this paper, the process of design including parameters calculation, structural analysis, and the calibration for the winding device is presented. Finally, taking an oval grid as an example, the fabrication and the testing results is shown. A 250 mm×350 mm oval polarized wire grid is fabricated by using this machine, with 0.1 mm diameter molybdenum wires at the distance of 0.3 ± 0.02 mm. And it achieved the 01. mm flatness requirement. The machine used is robust and can be easily extended to even 200 × 200 mm2 – 500 mm × 500 mm grids with 0.08–0.2 mm diameter wires at the distance of 0.1–0.5 mm.

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RETRACTED: Modeling and imprint fabrication of an infrared wire-grid polarizer with an antireflection grating structure

Cited by 10 publications

References 26 publications

Laser trimming of graphene oxide for functional photonic applications

Laser trimming of graphene oxide for functional photonic applications

Design of an Au–Pt–Ti wire-grid polarizer based on midinfrared pixelated micropolarizer arrays

A winding machine for polarized wire grid of microwave radiometer calibration

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