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Optoelectronic THz ratchets in two-dimensional metamaterials

URN to cite this document:
urn:nbn:de:bvb:355-epub-752107
DOI to cite this document:
10.5283/epub.75210
Hild, Marcel
[img]License: Creative Commons Attribution 4.0
PDF - Accepted Version
(32MB)
Date of publication of this fulltext: 13 Mar 2025 12:24


Abstract (English)

This thesis investigates ratchet photosignals - the conversion of an ac electric field into a dc electric current - generated by a THz laser. The studied samples are based on monolayer graphene or ferromagnetic metals, with both featuring a 2D external structure, and thus they have to be considered as metamaterials. The work examines the photosignal upon variation of the polarisation state of ...

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Translation of the abstract (German)

In dieser Arbeit werden Ratschen Photosignale - die Umwandlung von elektrischen AC Feldern zu elektrischen DC Strömen- untersucht, die von einem THz-Laser erzeugt werden. Die untersuchten Proben basieren auf Monolagen-Graphen oder ferromagnetischen Metallen, die beide eine zweidimensionale externe Struktur aufwiesen und somit als Metamaterialien betrachtet werden müssen. Die Arbeit untersucht ...

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