Manipulation of visible-light polarization with dendritic cell-cluster metasurfaces

Fang, Zhenhua; Chen, Huan; An, Di; Chen, Luo; Zhao, Xiaopeng

doi:10.1038/s41598-018-28030-8

Cited by 16 publications

(8 citation statements)

References 40 publications

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“…where t xx and t xy represent transmission coefficients for X to X and X to Y polarization conversion as shown in Equations (4) and (5), respectively. ϕ xx and ϕ xy are phase angles corresponding to t xx and t xy , respectively.…”

Section: Principle Of Operationmentioning

confidence: 99%

“…With the advancement in THz sources and detectors, these investigations have gained great interest from researchers. Polarization manipulators, in their applications to rotate or convert polarization states of electromagnetic waves, have been comprehensively explored for stealth, cloaking and in diode-like applications [5][6][7][8]. Circular polarization is a preferred choice for THz wireless communication due to its lower sensitivity towards multipath fading and polarization mismatch with receiver mobility.…”

Section: Introductionmentioning

confidence: 99%

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Dual-Wide-Band Dual Polarization Terahertz Linear to Circular Polarization Converters based on Bi-Layered Transmissive Metasurfaces

2019

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Transmissive metasurface-based dual-wide-band dual circular polarized operation is needed to facilitate volume and size reduction along with polarization diversity for future THz wireless communication. In this paper, a novel dual-wide-band THz linear polarization to circular polarization (LP-to-CP) converter is proposed using transmissive metasurfaces. It converts incident X polarized waves into transmitted left-hand circular polarized (LHCP) and right-hand circular polarized (RHCP) waves at two frequency bands. The structure consists of bi-layered metasurfaces having an outer conductor square ring and three inner conductor squares diagonally intersecting each other. The proposed converter works equally well with incident Y polarizations. Operational bandwidths for the dual-band LP-to-CP are 1.16 THz to 1.634 THz (34% fractional bandwidth) and 3.935 THz to 5.29 THz (29% fractional bandwidth). The electromagnetic simulation was carried out in two industry-standard software packages, High Frequency Structure Simulator (HFSS) and Computer Simulation Technology (CST), using frequency and time domain solvers respectively. Close agreement between results depicts the validity and reliability of the proposed design. The idea is supported by equivalent circuits and physical mechanisms involved in the dual-wide-band dual polarization operation. The impact of different geometrical parameters of the unit cell on the performance of LP-to-CP operation is also investigated.

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Section: Principle Of Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual-Wide-Band Dual Polarization Terahertz Linear to Circular Polarization Converters based on Bi-Layered Transmissive Metasurfaces

2019

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“…Examples of such applications are excellent lenses [7], an invisibility cloak [8], a superior absorber [9], and a PC [10]. So far, PCs relying on MS structures have been utilized in the microwave [10], infrared [11], and visible regimes [12], [13] due to their flexible and easy profile.…”

Section: Introductionmentioning

confidence: 99%

A Nested Square Shaped Metasurface-Based Broadband Linear Polarization Converter for Ku-Band Applications

Kaya

2023

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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This paper presents a wideband, thin, low-cost, and easy to fabricate linear polarization (LP) converter design utilizing metasurface (MS) for Ku-band (12-18 GHz) applications (also in the 18-19 GHz part of the K-band (18-27 GHz)). The design has a topology on a 1.6 mm thick FR-4 dielectric material with copper MS on the front and an entirely copper slab on the back. The presented design shows a polarization conversion ratio (PCR) of beyond 90% within the 12-19 GHz frequency band and also over 99% in the 12.5-13.1 and 16.32-17.64 GHz frequency ranges. To further give insight into the physical structure of the suggested MS-based polarization converter (PC), both the u – v axes are analyzed, and the existing surface behaviors at resonance frequencies are investigated. We compare the performance outputs with other Ku-band PCs, and the efficiencies of the suggested strategy over current MS-based LP converters are emphasized.

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“…These steps are towards more complex quantum system to control scalable quantum technologies [14]. In recent research photonic structures, metasurfaces [15] and dendritic cell clusters [16] are found useful for manipulation, transmission, and absorption of light. These metasurfaces give additional degrees of freedom to the polarization of light [17].…”

Section: Introductionmentioning

confidence: 99%

Orbital Angular Momentum Wave Generation and Multiplexing: Experiments and Analysis Using Classical and Quantum Optics

Khulbe

Parthasarathy

2022

Wireless Communications and Mobile Computing

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Optical fiber communication is known as the backbone of communication today for voice, video, and data transmission. Recent advancements in optical technologies are leading us to many new forms of generation of orbital angular momentum (OAM) waves and its transmission technologies. Among them are hypergeometric waveform (HG), Bessel’s waveforms, Laguerre Gaussian waveforms, and other forms of OAMs. This mode of communication is by the twisted form of electromagnetic wave which can accommodate a larger number of channels making communication simpler for wired and wireless communication. In this paper, various methods of OAM waveform generation are presented and are compared in details discussing the various needs in communication. OAM multiplexing is done by spatial division multiplexing (SDM) and wavelength division multiplexing (WDM). Methods of OAM communication, generation techniques, power analysis, and bit error analysis prove efficient transmission capability of OAM waves using low power consumption and low bit error rate in optical communication networks. OAM from fiber can be directly communicated to atmosphere which is found very useful for short distance wireless communication. Experimental validation is discussed for HG, Bessel’s waveforms, and LG waveforms. Pure Optical Vertices (OV) are generated by VCSELs (vertical cavity surface emitting lasers) and transmitted by (MMF) multimode fibers. Various atmospheric effects and challenges are also elaborated in this paper. RSoft OptSim software is used for simulation.

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Manipulation of visible-light polarization with dendritic cell-cluster metasurfaces

Cited by 16 publications

References 40 publications

Dual-Wide-Band Dual Polarization Terahertz Linear to Circular Polarization Converters based on Bi-Layered Transmissive Metasurfaces

Dual-Wide-Band Dual Polarization Terahertz Linear to Circular Polarization Converters based on Bi-Layered Transmissive Metasurfaces

A Nested Square Shaped Metasurface-Based Broadband Linear Polarization Converter for Ku-Band Applications

Orbital Angular Momentum Wave Generation and Multiplexing: Experiments and Analysis Using Classical and Quantum Optics

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