6533b85dfe1ef96bd12bdc6c

RESEARCH PRODUCT

Effect of DC Electric Field on the Emitted THz Signal of Antenna-Coupled Spintronic Emitters

M. R. S RouzegarOliver GueckstockM. S. AbdelazizTom SeifertSamridh JaiswalSascha PreuGerhard JakobM. KläuiTobias KampfrathU. Nandi

subject

Materials scienceSpintronicsbusiness.industryTerahertz radiationBiasing02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesMagnetic fieldMagnetizationElectric field0103 physical sciencesOptoelectronicsAntenna (radio)010306 general physics0210 nano-technologyJoule heatingbusiness

description

We study the impact of an external electric DC field on antenna-coupled spintronic THz emitters driven by a 90 fs, 1550 nm laser oscillator. Simultaneous application of external electric and magnetic field shows a quadratic decrease in peak-peak THz pulse with increase in the bias voltage. We ascribe this decrease to Joule heating caused by the DC current flowing through the spintronic material.

https://doi.org/10.1109/irmmw-thz.2019.8874256