Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-6340
Authors: | Gueckstock, Oliver Nádvorník, Lukáš Seifert, Tom S. Borchert, Martin Jakob, Gerhard Schmidt, Georg Woltersdorf, Georg Kläui, Mathias Wolf, Martin Kampfrath, Tobias |
Title: | Modulating the polarization of broadband terahertz pulses from a spintronic emitter at rates up to 10 kHz |
Online publication date: | 17-Sep-2021 |
Year of first publication: | 2021 |
Language: | english |
Abstract: | Reliable modulation of terahertz electromagnetic waveforms is important for many applications. Here, we rapidly modulate the direction of the electric field of linearly polarized terahertz electromagnetic pulses with 1-30 THz bandwidth by applying time-dependent magnetic fields to a spintronic terahertz emitter. Polarity modulation of the terahertz field with more than 99% contrast at a rate of 10 kHz is achieved using a harmonic magnetic field. By adding a static magnetic field, we modulate the direction of the terahertz field between angles of, for instance, -53 degrees and 53 degrees at kilohertz rates. We believe our approach makes spintronic terahertz emitters a promising source for low-noise modulation spectroscopy and polarization-sensitive techniques such as ellipsometry at 1-30 THz. |
DDC: | 530 Physik 530 Physics |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 08 Physik, Mathematik u. Informatik |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-6340 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
Document type specification: | Scientific article |
License: | CC BY |
Information on rights of use: | https://creativecommons.org/licenses/by/4.0/ |
Journal: | Optica 8 7 |
Pages or article number: | 1013 1019 |
Publisher: | OSA |
Publisher place: | Washington, DC |
Issue date: | 2021 |
ISSN: | 2334-2536 |
Publisher URL: | https://doi.org/10.1364/OPTICA.430504 |
Publisher DOI: | 10.1364/OPTICA.430504 |
Appears in collections: | JGU-Publikationen |
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File | Description | Size | Format | ||
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gueckstock_oliver-modulating_the-20210913130850393.pdf | 2.78 MB | Adobe PDF | View/Open |