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Nonthermal response of YBaCuO thin films to picosecond THz pulses

Probst, Petra and Semenov, A. and Ries, M. and Hoel, Arne and Scheuring, A and Judin, V. and Wünsch, S. and Ilin, Konstantin and Smale, N. and Mathis, Y.-L. and Müller, R. and Ulm, Gerhardt and Wüstefeld, G. and Hübers, H.-W. and Hänisch, J. and Holzapfel, B. and Siegel, Michael and Müller, A.-S. (2012) Nonthermal response of YBaCuO thin films to picosecond THz pulses. Physical Review B, 85 (174511), pp. 1-8. American Physical Society. DOI: 10.1103/PhysRevB.85.174511

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Abstract

The photoresponse of YBaCuO thin film microbridges with thicknesses between 15 and 50 nm was studied in the optical and terahertz frequency range. The voltage transients in response to short radiation pulses were recorded in real time with a resolution of a few tens of picoseconds. The bridges were excited by either femtosecond pulses at a wavelength of 0.8 μm or broadband (0.1–1.5 THz) picosecond pulses of coherent synchrotron radiation. The transients in response to optical radiation are qualitatively well explained in the framework of the two-temperature model with a fast component in the picosecond range and a bolometric nanosecond component whose decay time depends on the film thickness. The transients in the THz regime showed no bolometric component and had amplitudes up to three orders of magnitude larger than the two-temperature model predicts. Additionally THz field-dependent transients in the absence of DC bias were observed. We attribute the response in the THz regime to a rearrangement of vortices caused by high-frequency currents.

Item URL in elib:https://elib.dlr.de/78813/
Document Type:Article
Title:Nonthermal response of YBaCuO thin films to picosecond THz pulses
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Probst, PetraIMS KIT, KarlsruheUNSPECIFIED
Semenov, A.alexei.semenov (at) dlr.deUNSPECIFIED
Ries, M.Helmholtz-Zentrum Berlin (HZB), Albert-Einstein-Straße 15, 12489 Berlin, GermanyUNSPECIFIED
Hoel, ArneMLS PTB BerlinUNSPECIFIED
Scheuring, AUniversität KarlsruheUNSPECIFIED
Judin, V.Laboratorium für Applikationen der Synchrotronstrahlung, Engesser Straße 15, 76131 KarlsruheUNSPECIFIED
Wünsch, S.Institut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technolgie (KIT), HertzstraßeUNSPECIFIED
Ilin, KonstantinUniversity of KarlsruheUNSPECIFIED
Smale, N.Institut für Mikro- und Nanoelektronische Systeme, Karlsruher Institut f€ur Technologie (KIT)UNSPECIFIED
Mathis, Y.-L.Institut fur Synchrotronstrahlung (ISS), Karlsruher Institut f¨ur Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344UNSPECIFIED
Müller, R.MLS PTB BerlinUNSPECIFIED
Ulm, GerhardtMLS PTB BerlinUNSPECIFIED
Wüstefeld, G.BESSY mbH., BerlinUNSPECIFIED
Hübers, H.-W.heinz-wilhelm.huebers (at) dlr.deUNSPECIFIED
Hänisch, J.Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Helmholtzstraße 20, 01069 DresdenUNSPECIFIED
Holzapfel, B.Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Helmholtzstraße 20, 01069 DresdenUNSPECIFIED
Siegel, MichaelUniversität KarlsruheUNSPECIFIED
Müller, A.-S.Laboratorium für Applikationen der Synchrotronstrahlung, Engesser Straße 15, 76131 KarlsruheUNSPECIFIED
Date:May 2012
Journal or Publication Title:Physical Review B
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:85
DOI :10.1103/PhysRevB.85.174511
Page Range:pp. 1-8
Publisher:American Physical Society
Status:Published
Keywords:YBCO thin films, THz detectors, Synchrotron radiation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben IR-Sensorik, IR-Missionsprojekte
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:11 Dec 2012 14:11
Last Modified:06 Sep 2019 15:29

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