Search Results - "Heidtfeld, Sarah"
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Magnetically and optically tunable terahertz radiation from Ta/NiFe/Pt spintronic nanolayers generated by femtosecond laser pulses
Published in Applied physics letters (27-05-2019)“…We generate terahertz (THz) transients by illuminating a few-nanometer-thick Ta/NiFe/Pt nanolayers with a train of linearly polarized 100-fs-wide laser pulses…”
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Journal Article -
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Determination of Thermal Damage Threshold in THz Photomixers Using Raman Spectroscopy
Published in Crystals (Basel) (01-08-2023)“…The increase of device lifetime and reliability of THz photomixers will play an essential role in their possible future application. Therefore, their optimal…”
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Magnetization relaxation dynamics in [Co/Pt]_{3} multilayers on pico- and nanosecond timescales
Published in Physical review research (01-09-2021)“…We experimentally investigated magnetization relaxation dynamics in the largely unexplored time window extending from few picoseconds up to two nanoseconds…”
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Ultrafast demagnetization in ferromagnetic materials: Origins and progress
Published in Physics reports (29-01-2025)“…Since the discovery of ultrafast demagnetization in Ni thin films in 1996, laser-induced ultrafast spin dynamics have become a prominent research topic in the…”
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Terahertz inverse spin Hall effect in spintronic nanostructures with various ferromagnetic materials
Published in Journal of magnetism and magnetic materials (01-03-2024)“…•Comprehensive studies of transient THz emissions from ferromagnet/heavy metal (FM/HM) nanobilayers excited with femtosecond laser pulses are presented and…”
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Ferromagnetic domain wall manipulation using optically induced thermal gradients
Published in Journal of magnetism and magnetic materials (15-10-2022)“…Magnetic domain walls can be manipulated by thermal gradients. A local thermal gradient can be generated by illuminating the surface of a thin film sample with…”
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Journal Article -
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Terahertz inverse spin Hall effect in spintronic nanostructures with various ferromagnetic materials
Published in Journal of magnetism and magnetic materials (20-12-2023)“…Bilayers of ferromagnetic and heavy metal nanolayers excited with femtosecond laser pulses emit subpicosecond bursts of electromagnetic radiation with spectral…”
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Nano-LED driven phase change evolution of layered chalcogenides for Raman spectroscopy investigations
Published in FlatChem (01-11-2022)“…[Display omitted] •Device driving testing platform based on vertically integrated nano-LEDs introduced.•Nano-LED device testing platform enables the induction…”
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Magnetization relaxation dynamics in [ Co / Pt ] 3 multilayers on pico- and nanosecond timescales
Published in Physical review research (01-07-2021)Get full text
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Generation of terahertz transients from Co_{2}Fe_{0.4}Mn_{0.6}Si-Heusler-alloy/normal-metal nanobilayers excited by femtosecond optical pulses
Published in Physical review research (01-10-2021)“…We generated pulses of electromagnetic radiation in the terahertz (THz) frequency range by optical excitation of Co_{2}Fe_{0.4}Mn_{0.6}Si (CFMS)/normal-metal…”
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Control of THz Emission in Exchange-Coupled Spintronic Emitters
Published in 2023 Conference on Lasers and Electro-Optics (CLEO) (01-05-2023)“…Optically triggered THz transient intensity can be precisely controlled by the interlayer exchange coupling between two closely spaced spin emitters. We…”
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Conference Proceeding -
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1.2 TW Laser Amplifier for High Harmonic Generation and Laser Plasma Acceleration Experiments at 1kHz Repetition Rate
Published in 2021 Conference on Lasers and Electro-Optics (CLEO) (01-05-2021)“…We present the main parameters of the 1.2 TW Ti:Sapphire laser amplifier system operating at 1 kHz. The high quality beam output allows generation of linearly-…”
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Conference Proceeding -
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THz Generation Control in Fe/X Spintronic Multilayers by chemical bonding at epitaxial Fe/GaAs(001) interfaces
Published in 2021 Conference on Lasers and Electro-Optics (CLEO) (01-05-2021)“…We report an additional degree of control of THz transients in Fe/X spintronic emitters grown on GaAs(001). We ascribe the field-independent enhancement of the…”
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Conference Proceeding -
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Onset-Time Control of THz Transients Generated by Spintronic Emitters
Published in 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (08-11-2020)“…We have generated intense electromagnetic transients by femtosecond laser pulse illumination of ferromagnet/metal (F/M) nanobilayers, in the presence of an…”
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Conference Proceeding -
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Terahertz Transients Emitted from La-Sr-Mn-O/Metal Nanobilayers Excited by Femtosecond Optical Pulses
Published in 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (08-11-2020)“…We report on the generation of electromagnetic transients of picosecond duration from La-Sr-Mn-O/Au and La-Sr-Mn-O/lr nanobilayers, illuminated by femtosecond…”
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Conference Proceeding