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Dagmar Henrich

Dr.-Ing. Dagmar Henrich

Wissenschaftliche Mitarbeiterin
Raum: 107
Tel.: +49 721 608-44994

Institut für Mikro- und Nanoelektronische Systeme (IMS)
Hertzstraße 16
Gebäude: 06.41
D - 76187 Karlsruhe


Forschung
Titel Ansprechpartner


Abgeschlossene Studien-, Bachelor-, Diplom- und Masterarbeiten
Titel Forschungsthema Betreuer Bearbeiter
Detektoren

Laura Rehm

Detektoren

Steffen Dörner

Detektoren

Patrick Reichensperger

Supraleitung

Klevis Ylli

Detektoren

Julia Toußaint



Veröffentlichungen

I. Veröffentlichungen in referierten Zeitschriften

K. Ilin, D. Henrich, Y. Luck, Y. Liang, and M. Siegel, D. Yu. Vodolazov
Critical current of Nb, NbN, and TaN thin-film bridges with and without geometrical nonuniformities in a magnetic field
Phys. Rev. B 89, 184511 (2014)
DOI: 10.1103/PhysRevB.89.184511

L. Rehm, D. Henrich, M. Hofherr, S. Wuensch, P. Thoma, A. Scheuring, K.  Il'in, M. Siegel, S. Haindl, K. Iida, F. Kurth, B. Holzapfel, L. Schultz
"Infrared Photo-Response of Fe-Shunted Ba-122 Thin Film Microstructures"
Applied Superconductivity, IEEE Transactions on, 2013, PP
DOI: 10.1109/TASC.2013.2244632

M. Hofherr, M. Arndt, K. Il'in, D. Henrich, M. Siegel, J. Toussaint, T. May, H.-G. Meyer
"Time-Tagged Multiplexing of Serially Biased Superconducting Single-Photon Detectors"
Applied Superconductivity, IEEE Transactions on, PP, 99
DOI: 10.1109/TASC.2013.2245935

Julia Toussaint, Roman Grüner, Marco Schubert, Torsten May, Hans-Georg Meyer, Benjamin Dietzek, Jürgen Popp, Matthias Hofherr, Matthias Arndt, Dagmar Henrich, Konstantin Il’in and Michael Siegel
"Superconducting single-photon counting system for optical experiments requiring time-resolution in the picosecond range"
AIP, Rev. Sci. Instrum. 83, 123103, 2012 
DOI: 10.1063/1.4769048

D. Henrich, S. Dörner, M. Hofherr, K. Il’in, A. Semenov, E. Heintze, M. Scheffler, M. Dressel, M. Siegel
"Broadening of hot-spot response spectrum of superconducting NbN nanowire single-photon detector with reduced nitrogen content"
Journal of Applied Physics, 1112, 047511, 2012

DOI: 10.1063/1.4757625

Torsten May, Julia Toussaint, Roman Gruener, Marco Schubert, Hans-Georg Meyer, Benjamin Dietzek, Juergen Popp, Matthias Hofherr, Konstantin Il’in, Dagmar Henrich, Matthias Arndt, Michael Siegel
"Superconducting Nanowire Single-Photon Detectors for Picosecond Time Resolved Spectroscopic Applications"
Proc. of SPIE vol. 8427, 84274B, 2012

D. Henrich, P. Reichensperger, M. Hofherr, J. M. Meckbach, K. Il'in, M. Siegel, A. Semenov, A. Zotova, and D. Yu. Vodolazov
"Geometry-induced reduction of the critical current in superconducting nanowires"
Phys. Rev. B 86, 144504 (2012)
DOI: 10.1103/PhysRevB.86.144504

K. Il’in, M. Hofherr, D. Rall, M. Siegel, A. Semenov, A. Engel, K. Inderbitzin, A. Aeschbacher, A. Schilling
"Ultra-thin TaN Films for Superconducting Nanowire Single-Photon Detectors"
Journal of Low Temperature Physics (2012) 167:809–814
DOI: 10.1007/s10909-011-0424-3

Dagmar Rall, Laura Rehm, Konstantin Il’in, Michael Siegel, Kazumasa Iida, Silvia Haindl, Fritz Kurth, Bernhard Holzapfel, Ludwig Schultz, Jie Yong, Thomas Lemberger
"Penetration and de-pinning of vortices in sub-micrometer Ba(Fe,Co)2As2 thin film bridges"
Physica C 479, 164-166, 2012 
DOI: 10.1016/j.physc.2011.12.035

Konstantin S. Il’in, Dagmar Rall, Michael Siegel, Alexei Semenov
"Critical current density in thin superconducting TaN film structures"
Physica C 479, 176-178, 2012
DOI: 10.1016/j.physc.2011.12.014

M. Hofherr, D. Rall, K. Il'in, A. Semenov, H.-W. Hübers, M. Siegel
“Dark Count Suppression in Superconducting Nanowire Single Photon Detectors”
Journal of Low Temperature Physics, Springer Netherlands,  1-5

DOI: 10.1007/s10909-012-0495-9

K. Il'in, M. Hofherr, D. Rall, M. Siegel, A. Semenov, A. Engel, K. Inderbitzin, A. Aeschbacher und A. Schilling
"Ultra-thin TaN Films for Superconducting Nanowire Single-Photon Detectors"
J. Low Temp Phys (2011)
DOI: 10.1007/s10909-011-0424-3

T. Ortlepp, M. Hofherr, L. Fritzsch, S. Engert, K. Ilin, D. Rall, H. Toepfer, H.-G. Meyer, and M. Siegel
"Demonstration of digital readout circuit for superconducting nanowire single photon detector"
Optics Express, Vol. 19, Issue 19, pp. 18593-18601 (2011)
DOI:10.1364/OE.19.018593

D. Rall, K. Il'in, K. Iida, S. Haindl, F. Kurth, T. Thersleff, L. Schultz, B. Holzapfel, M. Siegel
"Critical current densities in ultra-thin Ba(Fe,Co)2As2 microbridges"
Physical Review B Vol.83, No.13 (2011) 
DOI: 10.1103/PhysRevB.83.134514

P. Probst, A. Scheuring, M. Hofherr, D. Rall, S. Wünsch, K. Il’in, M. Siegel, A. Semenov, A. Pohl, H.-W. Hübers, V. Judin, A.-S. Müller, A. Hoehl, R. Müller, and G. Ulm
"YBa2Cu3O7-d quasioptical detectors for fast time-domain analysis of terahertz synchrotron radiation"
Appl. Phys. Lett. 98, 043504 (2011)
DOI: 10.1063/1.3546173

K. Il'in, D. Rall, M. Siegel, A. Engel, A. Schilling, A. Semenov, H.-W. Hübers
"Influence of thickness, width and temperature on critical current density of Nb thin film structures"
Physica C: Superconductivity, Volume 470 Number 19 (2010), 953-956
DOI: 10.1016/j.physc.2010.02.042

D. Rall, P. Probst, M. Hofherr, S. Wünsch, K. Il'in, U. Lemmer, M. Siegel
"Relaxation time in NbN and YBCO thin films under optical irradiation"
Journal of Physics: Conference Series Volume 234 Part 4 (2010), 042029
DOI: 10.1088/1742-6596/234/4/042029

M. Hofherr, D. Rall, K. S. Ilin, A. Semenov, N. Gippius, H.-W. Hübers and M. Siegel
"Superconducting nanowire single-photon detectors: Quantum Efficiency vs. thickness of NbN films" 
Journal of Physics: Conference Series Volume 234 Part 1 (2010), 012017
DOI: 10.1088/1742-6596/234/1/012017

M. Hofherr, D. Rall, K. S. Il'in,  M. Siegel, A. Semenov, H.-W. Hübers, N. Gippius
"Intrinsic detection efficiency of superconducting nanowire single-photon detectors with different thicknesses"  
Journal of Applied Physics (Vol.108, Issue 1, 2010)
DOI: 10.1063/1.3437043

II. Veröffentlichungen auf internationalen Tagungen

P. Trojan, K. Ilin, D. Henrich, M. Hofherr, A. Semenov, H.-W. Hübers and M. Siegel
"Superconducting nanowire single-photon detectors (SNSPDs) on SOI for near-infrared range"
DPG-Frühjahrsragung, Regensburg, Germany (2013)

D. Henrich, P. Reichensperger, Y. Luck, L. Rehm, S. Dörner, J. M. Meckbach, M. Hofherr, K. Il'in, M. Siegel, A. Semenov, H.-W. Hübers, D. Vodolazov.
“Effect of Bends on the Critical Current in Superconducting Nanowires”
Applied Superconductivity Conference, Portland, USA (2012)

J. Toussaint, M. Hofherr, D. Henrich, K. Il'in, A. Semenov, H.-W. Hübers, H.-G. Meyer, M. Siegel
"Superconducting nanowire single-photon detectors: challenges in optimization of detector performance"
Meeting on kryoelectronic devices 2011, Autrans (Grenoble), France (2011)

O. Wetzstein, M. Hofherr, S. Engert, L. Fritzsch, T. Ortlepp, K. Il'in, D. Rall, R. Stolz, H. Töpfer, M. Siegel, H.-G. Meyer
"Simultaneous readout of a multi-pixel superconducting single-photon detector array"
Meeting on kryoelectronic devices 2011, Autrans (Grenoble), France (2011)

M. Hofherr, D. Henrich, K. Il'in, J. Toussaint, A. Semenov, H.-W. Hübers, H.-G. Meyer, M. Siegel
"Superconducting nanowire single-photon detectors: challenges in optimization of detector performance"
7th FLUXONICS RSFQ design workshop, Ilmenau, Germany (2011)

O. Wetzstein, M. Hofherr, S. Engert, L. Fritzsch, T. Ortlepp, K. Il'in, D. Rall, R. Stolz, H. Töpfer, M. Siegel, H.-G. Meyer
"Simultaneous readout of a multi-pixel superconducting single-photon detector array"
7th FLUXONICS RSFQ design workshop, Ilmenau, Germany (2011)

J. Toussaint, M. Hofherr, M. Schubert, K. Il'in, D. Rall, S. Wünsch, M. Siegel, H.-G. Meyer, T. May, R. Grüner, D. Akimov, B. Dietzek
"Superconducting micro-bolometers and single photon detectors for spectroscopic applications"
Meeting on kryoelectronic devices 2011, Autrans (Grenoble), France (2011)

A. Engel, K. Inderbitzin, A. Aeschbacher, A. Schilling, D. Rall, M. Hofherr, K. Il'in, M. Siegel
"Detection of X-rays using Superconducting Nanowire Single-Photon Detectors"
International Workshop on Nanowire Superconducting Single-Photon Detectors, Eindhoven, the Netherlands (2011)

M. Hofherr, K. Il'in, D. Rall, A. Semenov, H. Bartolf, A. Engel, A. SChilling, H.-W. Hübers, M. Siegel
"Suppression of dark counts of superconducting nanowire single-photon detectors caused by thermal fluctuations"
Superconductivity Centennial Conference EUCAS-ISEC-ICMC, World Forum, The Hague, the Netherlands (2011)

M. Hofherr, K. Il'in, D. Rall, O. Wetzstein, L. Fritsch, S. Engert, T. Ortlepp, A. Semenov, H.-W. Hübers, H.-G. Meayer, H. Töpfer, M. Siegel
"Single-flux quantum multiplexer for multi-pixel superconducting single-photon detector arrays"
Superconductivity Centennial Conference EUCAS-ISEC-ICMC, World Forum, The Hague, the Netherlands (2011)

K. Il'in, D. Rall, M. Hofherr, M. Siegel, A. Semenov, H.-W. Hübers, A. Engel, K. Inderbitzin, A. Aeschbacher, A. Schilling
"Ultra-thin TaN film nanowires for single-photon detection"
Superconductivity Centennial Conference EUCAS-ISEC-ICMC, World Forum, The Hague, the Netherlands (2011)

D. Rall, L. Rehm, K. Il'in, M. Siegel, K. Iida, S. Haindl, F. Kurth, B. Holzapfel, L. Schultz
"Penetration and de-pinning of vortices in sub-micrometer Ba-122 thin film bridges"
Seventh international conference on Vortex matter in nanostructured superconductors (VORTEX VII), Rhodes, Greece (2011)

K. Il'in, D. Rall, M. Siegel
"Critical states generated by current and magnetic fields in thin TaN film structures"
Seventh international conference on Vortex matter in nanostructured superconductors (VORTEX VII), Rhodes, Greece (2011)

D. Rall, J. Toussaint, M. Hofherr, S. Wuensch,  K. S. Il’in, A. Semenov, H.-W. Huebers, M. Siegel
"Detection Efficiency and Cut-off Wavelength of NbN-SNSPD with Different Stoichiometry"
14th International Workshop on low temperature detectors, Heidelberg, Germany (2011)

M. Hofherr, K. Il'in, A. Semenov, D. Rall, H. Bartolf, A. Engel, A. Schilling, H.-W. Hübers, M. Siegel
"Fluctuations in thin NbN Nanowire Single-Photon Detectors"
14th International Workshop on low temperature detectors, Heidelberg, Germany (2011)

K. Il'in, D. Rall, M. Hofherr, M. Siegel, A. Semenov, H.-W. Hübers, A. Engel, K. Inderbitzin, A. Aeschbacher, A. Schilling
"Superconducting ultra-thin TaN film nanostructures for optical and infrared detectors"
14th International Workshop on low temperature detectors, Heidelberg, Germany (2011)

D. Rall, M. Hofherr, J. Toussaint, K. S. Il’in, M. Siegel
"Energy relaxation processes in SNSPDs"
4th Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Bad Schandau, Germany (2011)

M. Hofherr, D. Rall, J. Toussaint, S. Wünsch, K. Ilin, M. Siegel
"SNSPD, readout concepts and application"
4th Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Bad Schandau, Germany (2011)

D. Rall
"Superconducting Nanowire Single Photon Detectors: Improvement of spectral bandwidth by material variation"
Karlsruhe Days of Optics and Photonics, Karlsruhe, Germany (2011)

D. Rall, K. Il’in, M. Siegel, K. Iida, S. Haindl, F. Kurth, T. Thersleff, L. Schultz, B. Holzapfel
"Transport properties of thin Ba-122 film microbridges"
DPG Frühjahrstagung, Dresden, Germany (2011)

D. Rall, P. Probst, M. Hofherr, S. Wünsch, K. Il'in, S. Haindl, K. Iida, U. Lemmer, M. Siegel
"Investiagtion of Energy Relaxation Processes in ultra-thin Superconducting Films with Frequency Dmain Measurements"
3rd Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Bad Liebenzell, Germany (2010)

P. Probst, A. Scheuring, D. Rall, A. Stockhausen, M. Hofherr, S. Wünsch, K. Il‘in, A. Semenov, H.-W. Hübers, V. Judin, A.-S. Müller, Jens Hänisch, Bernhard Holzapfel and M. Siegel
"Ultra-fast hot-electron bolometer detectors for measurements of pulsed THz radiation"
3rd Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Bad Liebenzell, Germany (2010)

T. Ortlepp, M. Hofherr, K. Il'in, S. Engert, D. Rall, S. Wuensch, H. Toepfer, M. Siegel
"RSFQ based readout of superconducting single photon detectors"
Applied Superconductivity Conference 2010, Washington, USA (2010)

D. Rall, J. Toussaint, M. Hofherr, S. Wünsch, K. Il’in, A. Semenov, H.-W. Hübers, U. Lemmer and M. Siegel
"Improvement of SNSPD Detection Efficiency by Variation of NbN Chemical Composition"
Tagung kryoelektronische Bauelemente, Zeuthen, Germany (2010)

T. Ortlepp, M. Hofherr, K. Il'in, S. Engert, D. Rall, H. Toepfer, M. Siegel
"RSFQ based readout of superconducting single photon detectors"
Tagung kryoelektronische Bauelemente, Zeuthen, Germany (2010)

K. Il'in, D. Rall, M.Hofherr, M. Siegel, A. Semenov, H.-W. Hübers, A. Engel A. Schilling
TaN thin films for Superconducting Nanowire Single-Photon Detectors
Tagung kryoelektronische Bauelemente, Zeuthen, Germany (2010)

P. Probst, A. Scheuring, M. Hofherr, A. Stockhausen, D. Rall, S. Wünsch, K. Il‘in, A. Semenov, H.-W. Hübers, V. Judin, A.-S. Müller, J. Hänisch, B. Holzapfel and M. Siegel
„High-speed YBCO detectors for resolving picosecond THz pulses”
Tagung kryoelektronische Bauelemente, Zeuthen, Germany (2010)

D. Rall, K. S. Il’in, M. Hofherr, P. Probst, S. Wünsch, U. Lemmer, M. Siegel, A. D. Semenov, H.-W. Hübers
"Investigation of NbN thin film response to optical irradiation for detector application"
2nd S-Pulse Karlsruhe Detector Workshop, Karlsruhe, Germany (2010)

M. Hofherr, K. Ilin, A. Semenov, N. Gippius, D. Rall, H.- W. Hübers, M. Siegel
"Improved understanding of superconducting nanowire single-photon detectors, a key to a better performance"
KHYSSymposium (2010)

M. Hofherr, K. Ilin, D. Rall, M. Siegel, A. D. Semenov, H.-W. Hübers, N. Gippius
"Intrinsic detection efficiency of superconducting nanowire single-photon detectors with different thicknesses"
2nd S-Pulse Karlsruhe Detector Workshop, Karlsruhe, Germany (2010)

P. Probst, D. Rall, A. Scheuring, M. Hofherr, S. Wünsch, K. Il‘in, A. Semenov, H.-W. Hübers, V. Judin, A.-S. Müller and M. Siegel
"Superconducting YBCO hot-electron bolometer detectors for picosecond time resolution of THz pulses"
456. Wilhelm und Else Heraeus Seminar, THz radiation: Generation, Detection and Applications, Bad Honnef, Germany (2010)

P. Probst, D. Rall, M. Hofherr, S. Wünsch, K. Ilin and M. Siegel
"Energy relaxation processes in YBCO thin films studied by frequency and time-domain techniques"
DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM), Regensburg, Germany (2010)

D. Rall, K. Il'in, M. Siegel, U. Lemmer
"Investigation of Energy Relaxation Processes in Ultra-Thin NbN Films with Frequency Domain Measurements"
Tagung Kryoelektronische Bauelemente, Oberhof, Germany (2009)

M. Hofherr, K. Ilin, A. Semenov, N. Gippius, D. Rall, H.- W. Hübers, M. Siegel
"Superconducting nanowire single-photon detectors: Intrinsic quantum efficiency vs. thickness of NbN films"
Tagung Kryoelektronische Bauelemente, Oberhof, Germany (2009)

P. Probst, D. Rall, M. Hofherr, S. Wünsch, K. Ilin and M. Siegel
"Measurements of energy relaxation time in thin YBa2Cu3O7-X films on sapphire substrates"
Kryoelektronische Bauelemente 2009, Oberhof, Germany (2009)

M. Hofherr, K. Ilin, A. Semenov, N. Gippius, D. Rall, H.- W. Hübers, M. Siegel
"Superconducting nanowire single-photon detectors: Intrinsic quantum efficiency vs. thickness of NbN films"
European Conference on Applied Superconductivity, Dresden, Germany (2009)

D. Rall
"Superconducting Radiation Detectors: Investigation of Energy Relaxation Processes in Ultra-Thin NbN Films with Frequency Domain Measurements"
Karlsruhe Days of Optics and Photonics, Karlsruhe, Germany (2009)

D. Rall, P. Probst, M. Hofherr, S. Wünsch, K. Ilin, U. Lemmer, M. Siegel
"Energy Relaxation Time in NbN and YBCO Thin Films under Optical Radiation"
European Conference on Applied Superconductivity, Dresden, Germany (2009)

D. Rall
"Energy Relaxation in Thin Superconducting Films"
2nd Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Colditz, Germany (2009)

P. Probst, K. S. Il’in, D. Rall, M. Hofherr, S. Wünsch and M. Siegel
"High-Tc thin films for fast THz detectors"
2nd Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Colditz, Germany (2009)

D. Rall, M. Hofherr, K. Il'in, S. Wünsch, M. Siegel, U. Lemmer, A. Semenov, H.-W. Hübers
"Investigation of Energy Relaxation Processes in NbN thin films using Optical Irradiation"
DPG Frühjahrstagung, Dresden, Germany, (2009)

D. Rall
"Properties of NbN thin films for application in superconducting single photon detectors"
1st Dresden-Karlsruhe Seminar on Materials and Applications in Superconductivity, Bad Liebenzell, Germany (2008)

D. Rall, K. Il'in, S. Wünsch, F. Glöckler, U. Lemmer, M. Siegel
"Response of NbN ultra-thin Superconducting Films to Optical Irradiation"
DPG Frühjahrstagung, Berlin, Germany (2008)