Highly efficient spintronic terahertz emitter
WebTerahertz electromagnetic radiation is extremely useful for numerous applications such as imaging and spectroscopy. Therefore, it is highly desirable to have an efficient table-top emitter covering the 1-to-30-THz window whilst being driven by a low-cost, low-power femtosecond laser oscillator. WebApr 10, 2024 · Highly efficient spintronic terahertz emitter enabled by metal-dielectric photonic crystal. Adv. Opt. Mater., 6 (2024), p. ... Perovskite/polymer hybrid thin films for high external quantum efficiency photodetectors with wide spectral response from visible to near-infrared wavelengths. Adv. Opt. Mater., 5 (2024), p.
Highly efficient spintronic terahertz emitter
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Web1 hour ago · To further advance communication systems, increasing both their speed and efficiency, electronics engineers will need to create new and highly performing … WebDec 14, 2024 · So far, spintronic THz emitters have been proven as one class of efficient THz sources with a broadband spectrum while the performance in the lower THz frequency range (0.1–0.5 THz) limits its applications.
WebNature photonics 23. Mai 2016. Terahertz electromagnetic radiation is extremely useful for numerous applications, including imaging and … WebSep 16, 2024 · The spintronic emitter is magnetized by an external magnetic field (20 mT) in the magnetic easy axis direction, which is perpendicular to the direction of the incident …
WebOct 26, 2024 · The hybrid terahertz emitters combine the advantages of spintronic emitters (ultrabroadband, efficient, and highly flexible) with those of metasurfaces, for powerful …
WebOct 22, 2024 · The highest possible THz signal strength from spintronic THz emitters is limited by the of the corresponding heterostructures at the excitation wavelength. For the thickness-optimized spintronic heterostructure, the THz generation efficiency does not saturate with the excitation fluence even up till the damage threshold.
WebNov 18, 2024 · A high-quality terahertz source is an indispensable core component for the application of terahertz technology. Currently, most broadband THz sources are driven by femtosecond laser pulses to generate terahertz pulses. culturetheque primary frenchWebDec 15, 2024 · In this Letter, a unidirectional spintronic terahertz emitter (USTE) integrating a common STE with a metal grating is proposed to manipulate the THz emission process. The dyadic Green's function method and finite element method are adopted to survey the characteristics of the USTE. Simulations show that the metal grating not only has a ... east midlands trains bike reservationWebDec 10, 2024 · A MIMST device is comprised of a spintronic THz emitter and an EITA metamaterial. To achieve a designable spintronic THz emitter, we chose a W/CoFeB/Pt tri-layer heterostructure as the THz radiator (see figure 1(a)). When pumped by the femtosecond laser pulses, a longitudinal spin-polarized current is formed inside the FM … culture\u0027s interrelated nature generatesWebOct 9, 2024 · Spintronic terahertz (THz) emitter provides the advantages such as apparently broader spectrum, significantly lower cost, and more … east midlands traffic management ltdWebDec 15, 2024 · In this Letter, a unidirectional spintronic terahertz emitter (USTE) integrating a common STE with a metal grating is proposed to manipulate the THz emission process. … culture views on mental healthWebSep 21, 2024 · Spintronic terahertz emitters, typically composed of nanometer-thin magnetic multilayer, have the outstanding capability of producing high-quality, broadband terahertz pulses using extremely simple heterostructures. A question remains on whether an efficient and cheap integration with other silicon-based technologies can be achieved. east midlands train mapWebJul 9, 2024 · Spintronic terahertz (THz) emitter provides the advantages such as apparently broader spectrum, significantly lower cost, and more flexibility in compared with the … culture vs christianity