Terahertz Emission from Compensated Magnetic Heterostructures
Sign Up to like & getrecommendations! Published in 2018 at "Advanced Optical Materials"
DOI: 10.1002/adom.201800430
Abstract: Terahertz emission spectroscopy (TES) has recently played an important role in unveiling the spin dynamics at a terahertz (THz) frequency range. So far, ferromagnetic (FM)/nonmagnetic (NM) heterostructures have been intensively studied as THz sources. Compensated… read more here.
Keywords: thz; terahertz emission; compensated magnetic; magnetic heterostructures ... See more keywords
Ultrafast Shift Current in SnS2 Single Crystals: Structure Considerations, Modeling, and THz Emission Spectroscopy
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Optical Materials"
DOI: 10.1002/adom.202400244
Abstract: Above‐band gap optical excitation of non‐centrosymmetric semiconductors can lead to the spatial shift of the center of electron charge in a process known as shift current. Shift current is investigated in single‐crystal SnS2, a layered… read more here.
Keywords: spectroscopy; shift current; thz emission; emission spectroscopy ... See more keywords
Luminescence and carrier dynamics in nanostructured silicon
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2017.02.012
Abstract: Abstract We report increased radiation in the visible and terahertz (THz) regimes in silicon(Si)-based nanostructures. The nanostructures, Si nanowires (SiNWs) and porous Si (PSi), were synthesized via electroless and electrochemical surface modification, respectively. In particular,… read more here.
Keywords: dynamics nanostructured; carrier dynamics; carrier; luminescence carrier ... See more keywords
Direct observation of terahertz emission from ultrafast spin dynamics in thick ferromagnetic films
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5087236
Abstract: We have experimentally investigated the field- and fluence-dependent terahertz (THz) emission behaviors by a femtosecond optical pump in Co ferromagnetic films, together with the time-resolved magneto-optical Kerr effect measurement. The thickness of Co and Ta… read more here.
Keywords: thz emission; ferromagnetic films; spin; terahertz ... See more keywords
Terahertz emission from transient currents and coherent phonons in layered MoSe2 and WSe2
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Applied Physics"
DOI: 10.1063/5.0146489
Abstract: Terahertz (THz) time-domain emission spectroscopy was performed on layered 2H-MoSe 2 and 2H-WSe 2. The THz emission shows an initial cycle attributed to surge currents and is followed by oscillations attributed to coherent interlayer phonon… read more here.
Keywords: emission transient; spectroscopy; thz emission; transient currents ... See more keywords
Enhanced THz emission from spintronic emitters with Pt-Al alloys
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Letters"
DOI: 10.1063/5.0294491
Abstract: Platinum (Pt) is the element with the largest spin Hall conductivity and is known as the most efficient spin-to-charge conversion material in spintronic THz emitters. By alloying with aluminum (Al), its resistivity can be substantially… read more here.
Keywords: thz; enhanced thz; spin hall; thz emission ... See more keywords
THz emission manipulation and thermal robustness in CoFeB films via boron doping
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Letters"
DOI: 10.1063/5.0294609
Abstract: Spintronic terahertz emitters (STEs) based on ferromagnet/nonmagnet heterostructures present a compelling alternative to conventional THz sources. In this work, we systematically investigate the effects of boron (B) doping and post-deposition annealing on spin transport and… read more here.
Keywords: thz emission; doping thz; emission; emission manipulation ... See more keywords
Ultrafast inverse chirality-induced spin selectivity observed by THz emission.
Sign Up to like & getrecommendations! Published in 2025 at "Science"
DOI: 10.1126/science.ady4885
Abstract: Chirality-induced spin selectivity (CISS) phenomena arise from an interplay among structural chirality, electron spin orientation, and charge current. Steady-state observations such as magnetoresistance offer little insight into the timescales that govern the spin-charge interconversion and… read more here.
Keywords: charge current; thz emission; charge; chirality induced ... See more keywords
Enhancing THz emission from nonlinear metasurfaces by a Bragg perfect absorber.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.489887
Abstract: Nonlinear plasmonic metasurfaces were demonstrated recently as ultracompact tetrahertz (THz) sources, emitting relatively strong single-cycle THz pulses after femtosecond laser illumination. There has been great progress in their ability to generate controlled THz wavepackets; however,… read more here.
Keywords: nonlinear metasurfaces; thz emission; emission; perfect absorber ... See more keywords
Broadband THz emission of long pulses from photomixing process with optical chirped pulses.
Sign Up to like & getrecommendations! Published in 2024 at "Optics letters"
DOI: 10.1364/ol.544220
Abstract: Terahertz (THz) generation via photomixing on photoconductive antenna using twin delayed chirped pulses provides a long THz pulse with a narrow bandwidth. To generate a long pulse with a broad bandwidth, we propose a new,… read more here.
Keywords: broadband thz; thz emission; chirped pulses; emission long ... See more keywords
Enhancement of Terahertz Radiation by Surface Plasmons Based on CdTe Thin Films
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12020290
Abstract: Terahertz (THz) time-domain spectroscopy (TDS) is a powerful tool used to characterize the surface/interface of materials, and semiconductor/metal interfaces can generate THz emission through ultrafast optical excitation, which can be further improved through the optical… read more here.
Keywords: thz emission; surface; terahertz radiation; cdte ... See more keywords