Our demonstrated external-magnetic-field-free high-field STEs have some unique applications such as producing sub-cycle ultrashort strong THz fields in huge size emitters under the …

Combining TOPTICA’s FemtoFiber smart laser technology with state-of-the-art InGaAs antennas, the system achieves a peak dynamic range of 100 dB and a bandwidth of more than 6 THz. …

THz emitter consists of a microstrip photoconductive antenna (PCA) fabricated on GaAs substrate. Depending on pump laser wavelength either low temperature grown GaAs (LT …

Feb 11, 2025 · In this project, we employ laser pulses in order to generate superdiffusive spin currents (JS) in a variety of ferromagnet /normal-metal (FM/NM) layered structures.

The new bias-free Terahertz emitter series TeraBlast from Protemics are optically pumped THz sources which can be used with a wide range of femtosecond laser sources (such as low …

Jan 4, 2021 · The mechanism is to use an ultrafast infrared pump pulse for exciting rapidly decaying currents inside either a nonlinear or a photoconducting medium, known as a THz …

Feb 4, 2025 · In this study, we experimentally examined single-cycle THz pulse generation from a laser-pulse-excited Pt/Co emitter with a 1.2-nm-thick composition-gradient interface between …

One direct opti-cal source is the quantum-cascade-laser (QCL). A QCL generates frequencies above 1 THz but requires operating temperatures of 40 K, and therefore a He cryostat for …

Oct 24, 2024 · Here, we study experimentally single-cycle THz pulse generation from a laser-pulse excited Pt/Co emitter with a composition gradient interface between Pt and Co and …

Aug 26, 2024 · This new class of THz emitters, known as Spintronic THz emitters (STEs), utilizes the inverse spin Hall effect (ISHE) to convert spin currents generated by femtosecond pulse …