Design technique for all-dielectric non-polarizing beam splitter plate

Rizea, A.

doi:10.2478/s11772-012-0012-3

Cited by 14 publications

(6 citation statements)

References 9 publications

(9 reference statements)

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“…It makes normal BS hard to integrate into compact optical systems. Some flat-type BSs like plate BS [ 5 ], grating BS [ 6 ], and dichroic BS [ 7 ] have been previously demonstrated. Although their sizes are significantly smaller than cube BS, these BSs are still not suitable for integration owing to their fixed splitter ratio, different lengths of beam paths, and expensive materials.…”

Section: Introductionmentioning

confidence: 99%

All-Dielectric Metasurface-Based Beam Splitter with Arbitrary Splitting Ratio

Chen

Zou

et al. 2021

Nanomaterials

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The development of optical systems is heading to multi-branch circuit design and miniaturization. A beam splitter is a common device for dividing an incident beam into two separate beams. Conventional beam splitters are constructed using coated prisms or glass plate. Their bulky size, right-angled output direction, and fixed splitting ratio greatly limit the design of optical arrangement and also hinder the system integration. Here, an all-dielectric metasurface composed of symmetric nano-rings as a beam splitter are designed by Finite-Difference Time-Domain method. By changing the inner and outer radiuses of the nano-rings, the wavefront phase of the emergence beam can be adjusted to form a phase gradient, and the incident beam of arbitrary polarization is divided into two beams according to the designed transmittance and angle. The initial phase of the emergence beam can be changed by adjusting the refractive index of the substrate or adding the silicon film to the substrate, and the splitting ratio can be adjusted from 0.5:1 to 1:1. The simulation demonstrates that the metasurface-based beam splitter is independent of polarization and the power efficiency is over 92% with a compact area of 33.6 μm × 33.6 μm. This compact metasurface-based beam splitter has promising potential for enabling new types of compact optical systems and advancing metasurface-based functional integrated photonic applications.

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Section: Introductionmentioning

confidence: 99%

All-Dielectric Metasurface-Based Beam Splitter with Arbitrary Splitting Ratio

Chen

Zou

et al. 2021

Nanomaterials

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“…With terahertz technology gaining its popularity, utility terahertz systems are in great demand for efficient, flexible and low-cost beam splitters. Conventionally, metallic wire-grating along with pellicle and silicon are commonly adopted in the terahertz systems as polarizing and non-polarizing beam splitters [3][4][5][6][7][8], however, they face with the nuisance like oblique illumination requirement and complicated fabrication process [4].…”

Section: Introductionmentioning

confidence: 99%

All-Dielectric Metasurface-Based Quad-Beam Splitter in the Terahertz Regime

Ouyang

Zhang

et al. 2020

IEEE Photonics J.

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Seeking the unprecedented ability of metasurfaces to manipulate terahertz waves in a desired manner has attracted increasing interest. We design and investigate a kind of multi-channel, polarization-dependent transmission-type dielectric metasurface-based terahertz beam splitter. It is numerically demonstrated that such metasurfaces can manipulate terahertz beam, and split it into four channels with alterable angles and orthogonal polarizations, under the linearly polarized incidence with both the x-and y-polarization components. The suggested regime may alleviate the shortage of advanced multifunctional devices and provide extra freedom for terahertz functional device design.

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“…Beam splitting control of terahertz wave is one of the key research contents of terahertz science and technology [1,2]. Terahertz beam splitter is the basic device of a terahertz system, which is widely used in coherent terahertz measurement systems and structural analysis of complex organic materials [3]. With the rapid development of terahertz technology, there is a great demand for high efficiency, flexibility and low-cost terahertz beam splitters.…”

Section: Introductionmentioning

confidence: 99%

Terahertz Beam Splitter Based on I-Shaped Metasurface

Wu¹,

Wang²,

Chen³

et al. 2020

PIER M

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A linear polarization beam splitter operating in terahertz band is proposed and experimentally verified in this paper. The unit cell of the beam splitter is composed of the top "I" type metal pattern, the middle dielectric layer, and the bottom metal layer. Each subarray structure of the device consists of four unit cells that rotate progressively at an angle of 45 •. The horizontal and vertical sub-arrays form the gradient metasurface of 4 × 4. The incident linear polarized terahertz wave is reflected by the device and divided into four beams with approximately equal power, while having different propagating directions in the 0.18-0.30 THz band. The proposed terahertz beam splitter has the advantages of small size, low cost, and easy processing, and it can be applied to terahertz stealth and terahertz imaging.

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Design technique for all-dielectric non-polarizing beam splitter plate

Cited by 14 publications

References 9 publications

All-Dielectric Metasurface-Based Beam Splitter with Arbitrary Splitting Ratio

All-Dielectric Metasurface-Based Beam Splitter with Arbitrary Splitting Ratio

All-Dielectric Metasurface-Based Quad-Beam Splitter in the Terahertz Regime

Terahertz Beam Splitter Based on I-Shaped Metasurface

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