3D Dirac Semimetal Elliptical Fiber Supported THz Tunable Hybrid Plasmonic Waveguides

Wang, Guangqing; Cao, Wenhan; He, Xiaoyong

doi:10.1109/jstqe.2023.3284231

Cited by 16 publications

(4 citation statements)

References 45 publications

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“…Graphene has been experimentally demonstrated to exhibit an exceptionally strong third-order nonlinear susceptibility in the THz region [17,18], originating from the intraband electron transitions and the resonant nature of the interactions between light and graphene [19]. Graphene can support propagating or localized surface plasmon polaritons (SPPs) like metals and 3D Dirac semimetal [20][21][22]. The excitation of these highly localized SPPs in is accompanied by much stronger increase in the surface localized field, and the nonlinear optical processes are further strongly enhanced due to the dependence of the nonlinearity on the intensity.…”

Section: Introductionmentioning

confidence: 99%

Enhanced terahertz frequency mixing in all-dielectric metamaterial with multiple surface plasmon polaritons resonances

Wang,

Yan,

Tian

et al. 2024

J. Phys. D: Appl. Phys.

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Nonlinear metamaterials hold a promising platform for generating terahertz (THz) waves. In this paper, we present an all-dielectric metamaterial with multiple surface plasmon polariton (SPP) resonances for enhanced THz frequency mixing. The metamaterial is composed of graphene ribbons, a dielectric layer, and a one-dimensional photonic crystal, displaying the multiple absorptions with simultaneous excitation of three SPP resonances. Taking advantage of SPP resonances with high Q factor and strong localized field at the input frequency, the third-order nonlinear processes are remarkably enhanced, including third-harmonic generation (THG) and four-wave mixing (FWM), producing a variety of frequencies in the THz range. The proposed efficient nonlinear metamaterials offer promising applications for THz frequency synthesis.

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Section: Introductionmentioning

confidence: 99%

Enhanced terahertz frequency mixing in all-dielectric metamaterial with multiple surface plasmon polaritons resonances

Wang,

Yan,

Tian

et al. 2024

J. Phys. D: Appl. Phys.

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“…Nonlinear optical (NLO) properties found in various materials are of immense importance because of their comprehensive applications in the optical field, especially in the development of all-optical modulation, alloptical switching, optical limiting, and many other applications [1][2][3]. The importance of the design of optical devices, such as modulators and switchers, has also led researchers to discover and introduce new materials that can be used to advance the fields of photonics and communications [4][5][6][7]. On the other hand, the utilization of NLO responses has recently gained prominence as a viable approach to authentication and fraud detection in various materials [8,9].…”

Section: Introductionmentioning

confidence: 99%

Investigating the nonlinear optical response of virgin cherry kernel oil and its application to detecting adulteration

Hassan,

Haddad,

Golestanifar

et al. 2024

Phys. Scr.

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The nonlinear optical (NLO) response of materials is the basis for their use in various applications, including optical switching, optical data storage, and optical limiting. Additionally, it can be used as an innovative method of authentication. In this study, the NLO properties of virgin cherry kernel oil (VCKO) were studied through the observation of spatial self-phase modulation (SSPM) diffraction rings using a 532 nm continuous-wave laser beam. Based on the intensity-dependent number of symmetric diffraction rings, the nonlinear refraction coefficient and thermo-optical coefficient of VCKO were estimated to be 3.81×10-6 cm2/W and 5.34×10-4 K-1 , respectively, for the first time according to the authors' knowledge. Furthermore, we employed the SSPM technique for adulteration detection in the VCKO by analyzing its NLO properties. To accomplish this, we prepared different adulterated samples by mixing VCKO with cheaper commercial oils such as virgin sunflower oil (VSFO) and virgin canola oil (VCO) at various concentration ratios. In mixed VCKO samples that were adulterated, the measured NLO parameters were correlated highly with the amount of adulteration. The results confirm the ability of the SSPM technique to determine the degree of adulteration in oil samples by measuring and comparing their NLO properties. In addition, our results indicate that cherry kernel oil can be a viable candidate as a nonlinear medium for optical applications.

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“…1a ) 1 . However, recent advancements in technologies such as optical rectification using femtosecond laser pulses, quantum cascade lasers (QCLs) 2 , tunable THz waveguide 3 – 5 and free electron lasers 6 have significantly expanded access to the THz part of the electromagnetic spectrum, overcoming previous limitations and creating new opportunities for research and applications in fields including THz spectroscopy, material science, communication, agriculture, environment, medical imaging, security screening and food 7 – 14 . Particularly in the field of material science, THz spectroscopy has been successfully employed to characterize different physical properties of materials, such as complex dielectric constant, refractive index, conductivities and so on.…”

Section: Introductionmentioning

confidence: 99%

Emerging probing perspective of two-dimensional materials physics: terahertz emission spectroscopy

Wu,

Wang,

Bao

et al. 2024

Light Sci Appl

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Terahertz (THz) emission spectroscopy (TES) has emerged as a highly effective and versatile technique for investigating the photoelectric properties of diverse materials and nonlinear physical processes in the past few decades. Concurrently, research on two-dimensional (2D) materials has experienced substantial growth due to their atomically thin structures, exceptional mechanical and optoelectronic properties, and the potential for applications in flexible electronics, sensing, and nanoelectronics. Specifically, these materials offer advantages such as tunable bandgap, high carrier mobility, wideband optical absorption, and relatively short carrier lifetime. By applying TES to investigate the 2D materials, their interfaces and heterostructures, rich information about the interplay among photons, charges, phonons and spins can be unfolded, which provides fundamental understanding for future applications. Thus it is timely to review the nonlinear processes underlying THz emission in 2D materials including optical rectification, photon-drag, high-order harmonic generation and spin-to-charge conversion, showcasing the rich diversity of the TES employed to unravel the complex nature of these materials. Typical applications based on THz emissions, such as THz lasers, ultrafast imaging and biosensors, are also discussed. Step further, we analyzed the unique advantages of spintronic terahertz emitters and the future technological advancements in the development of new THz generation mechanisms leading to advanced THz sources characterized by wide bandwidth, high power and integration, suitable for industrial and commercial applications. The continuous advancement and integration of TES with the study of 2D materials and heterostructures promise to revolutionize research in different areas, including basic materials physics, novel optoelectronic devices, and chips for post-Moore’s era.

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3D Dirac Semimetal Elliptical Fiber Supported THz Tunable Hybrid Plasmonic Waveguides

Cited by 16 publications

References 45 publications

Enhanced terahertz frequency mixing in all-dielectric metamaterial with multiple surface plasmon polaritons resonances

Enhanced terahertz frequency mixing in all-dielectric metamaterial with multiple surface plasmon polaritons resonances

Investigating the nonlinear optical response of virgin cherry kernel oil and its application to detecting adulteration

Emerging probing perspective of two-dimensional materials physics: terahertz emission spectroscopy

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