Multi-Directional Plasmonic Splitter and Polarization Analyzer Based on the Catenary Metasurface

Chen, Panpan; Chen, Cong; Xi, Jianxin; Du, Xiang; Li, Liang; Mi, Jiajia; Shi, Jianping

doi:10.1007/s11468-021-01482-x

Cited by 4 publications

(2 citation statements)

References 46 publications

(38 reference statements)

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“…Beam splitters have become integral components of modern optical devices, finding extensive applications in the teleportation of squeezed states, 1 photonic circuits, 2 – 4 optical communication, 5 – 7 displacement measurement, 8 , 9 nonreciprocal thermal emitter, 10 – 12 and optical sensing 13 , 14 . As an important type of beam splitter grating, multi-channel beam splitters have gained significant attention from researchers 15 …”

Section: Introductionmentioning

confidence: 99%

Polarization insensitivity induced for 1 × 9 splitter with T-type SiO2 grating ridge

Liang,

Wang,

Shi

et al. 2024

Opt. Eng.

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To reduce the polarization sensitivity, a T-type grating with the material SiO 2 is proposed on a reflective layer made of aluminum material. Based on structural parameters derived from rigorous coupled-wave analysis and simulated annealing, the described reflection beam splitter enables a nine-port separation under normal incidence. In addition, it demonstrates exceptional and uniform diffraction efficiency. For transverse electric polarization, the diffraction efficiencies of 0th, ±1st, ±2nd, ±3rd, and ±4th are 10.02%, 11.70%, 10.85%, 11.00%, and 10.03%, respectively. For transverse magnetic polarization, the diffraction efficiencies of 0th, ±1st, ±2nd, ±3rd, and ±4th are 12.54%, 10.13%, 9.51%, 10.46%, and 11.89%, respectively. The finite element technique is used to verify the diffraction efficiency values. In addition, a thorough analysis of the fabrication tolerance, wavelength bandwidth, and electromagnetic field dispersion is conducted. The outcome shows that the suggested grating structure has outstanding uniformity and efficiency, and these studies greatly enhance our knowledge of and progress toward the creation of the nine-port beam splitter. Consequently, there is a lot of room for the implementation of the suggested grating in multi-channel optical communication systems.

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Section: Introductionmentioning

confidence: 99%

Polarization insensitivity induced for 1 × 9 splitter with T-type SiO2 grating ridge

Liang,

Wang,

Shi

et al. 2024

Opt. Eng.

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“…Beam splitter have a crucial role in various optical systems that can be widely used in the design of optical components [1][2][3][4], such as sensors [5,6], interferometers [7][8][9], photonic crystal [10][11][12][13][14], and optical communication [15][16][17][18][19], etc. Reflective beam splitter is an important type of beam splitter [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Efficient infrared nine-channel reflective polarization-dependent splitter

Liang,

Wang,

2023

Phys. Scr.

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In order to meet the requirements of a multi-beam splitter in optical communication systems, an efficient infrared nine-channel reflective polarization-dependent beam splitter based on an addition-shaped ridge structure is proposed. All structural parameters of this polarization-dependent beam splitter are derived from the rigorous coupled-wave analysis. Upon the vertical entry of a plane wave with a wavelength of 800 nm into the grating, for transverse magnetic polarization, the diffraction efficiencies are 10.66%, 10.69%, 10.69%, 10.65%, and 10.67% at 0th, ±1st, ±2nd, ±3rd and ±4th orders, respectively. For transverse electric polarization, the diffraction efficiencies of the 0th, ±1st, ±2nd, ±3rd and ±4th orders are 10.79%, 10.86%, 10.88%, 10.84%, and 10.86%, respectively. In addition, the tolerance analysis in this paper reveals the practicality and efficiency of this beam splitter. Therefore, the addition-shaped ridge structure has a good performance of uniformity and broad application prospects in nine-channel reflective applications.

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Plasmonic Characteristics of the Graphene-Photonic Crystal Composite Structure in the IR Regime

et al. 2022

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In this work a graphene-photonic crystal composite structure is proposed, in which graphene nanoribbons are placed on top of a photonic crystal that is composed of two alternating dielectric materials. The optical properties of the composite structure are investigated in the infrared regime, by varying the Fermi energy, the layer number of the graphene, as well as the polarization angle of the incident light. Plasmonic resonance effects are revealed and the resonance wavelength, the peak width, and the peak intensity are determined. Quantitatively, the polarization-angle dependent peak intensity is well fitted to a trigonometric function. It is demonstrated that the resonance peak is quite sensitive to the dielectric material that is adjacent to the graphene. It is also shown that the structure has a high sensitivity of 7660 nm/RIU to the refractive index of the surrounding environment, with a figure of merit of 6.38. Based on the results, the graphene-photonic crystal composite structure proposed in this work may have potential applications in designing of plasmonic devices, such as ones that can be used to detect subtle variations in the refractive index of surrounding environments.

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Multi-Directional Plasmonic Splitter and Polarization Analyzer Based on the Catenary Metasurface

Cited by 4 publications

References 46 publications

Polarization insensitivity induced for 1 × 9 splitter with T-type SiO2 grating ridge

Polarization insensitivity induced for 1 × 9 splitter with T-type SiO2 grating ridge

Efficient infrared nine-channel reflective polarization-dependent splitter

Plasmonic Characteristics of the Graphene-Photonic Crystal Composite Structure in the IR Regime

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