Dr.-Ing. Xuan Liu


Anschrift:                                                                  Raum:       BA 250
Universität Duisburg-Essen                                    Telefon:    +49 203 37 92547
Nachrichtentechnische Systeme                           Fax:            +49 203 37 92902
Bismarckstrasse 81                                                 E-Mail:       xuan.liu@uni-due.de
47057 Duisburg
 
     
Forschungsthemen:
Allgemeines Strahlformungsnetzwerk
Rekonfigurierbares Reflectarray für die Anwendung der Terahertz-Strahlformung
Passive Terahertz-Komponenten
Genetischer Algorithmus
Signalverarbeitung für Terahertz-Frequenzbereichsspektroskopie

Publikationen

    2024

  • Liu, Xuan;
    MEMS-enabled reconfigurable reflectarray for terahertz beam steering
    Duisburg, Essen (2024) iv, 115 Seiten
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)
  • Liu, Xuan; Kolpatzeck, Kevin; Czylwik, Andreas
    Performance Analysis of a Reconfigurable Terahertz Reflectarray for Broadband Applications
    In: Proceedings of the 49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024 / 49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024; 01-06 September 2024; Perth, Australia / Institute of Electrical and Electronics Engineers (IEEE) (Hrsg.) 2024
    Online Volltext: dx.doi.org/

    • 2023

  • Schmitt, Lisa; Liu, Xuan; Schmitt, Philip; Czylwik, Andreas; Hoffmann, Martin
    Large Displacement Actuators With Multi-Point Stability for a MEMS-Driven THz Beam Steering Concept
    In: Journal of Microelectromechanical Systems Jg. 32 (2023) Nr. 2, S. 195 - 207
    Online Volltext: dx.doi.org/
  • Zhao, Yixiong; Liu, Xuan; Balzer, Jan C.
    An improved Photonic Crystal Resonator for Sensing Applications at 100 GHz
    In: 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) / 48th International Conference on Infrared, Millimeter, and Terahertz Waves ; IRMMW-THz 2023 ; 17 -22 September 2023, Montreal, Quebec, Canada / Cooke, David G. (Hrsg.) 2023
    Online Volltext: dx.doi.org/

    • 2022

  • Liu, Xuan; Schmitt, Lisa; Lipka, Jonas; Kolpatzeck, Kevin; Balzer, Jan C.; Hoffmann, Martin; Czylwik, Andreas
    Optimizing the Radiation Pattern of a MEMS-Based Reflectarray Using a Genetic Algorithm for Beam Steering Applications
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz / 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 28 August 2022 - 02 September 2022, Delft, Netherlands 2022
    Online Volltext: dx.doi.org/
  • Kubiczek, Tobias; Liu, Xuan; Balzer, Jan C.; Guo, Xuan; Sakaki, Masoud; Zhao, Yixiong; Benson, Niels
    3D Printed Passive Beam-Guiding and Manipulating Devices for the Terahertz Frequency Range
    In: Proceedings of the 12th International Conference on RFID Technology and Applications (RFID-TA 2022) / 12th International Conference on RFID Technology and Applications (RFID-TA 2022): 12-14 September 2022; Cagliari, Italy / Institute of Electrical and Electronics Engineers (IEEE) (Hrsg.) 2022, S. 43 - 46
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Kramer, Peter; Cherniak, Vladyslav; Kubiczek, Tobias; Liu, Xuan; Balzer, Jan C.; Czylwik, Andreas
    Interferometric Correction of Delay Errors in an Ultra-High Repetition Rate Terahertz Time-Domain Spectroscopy System
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz / 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 28 August 2022 - 02 September 2022, Delft, Netherlands 2022
    Online Volltext: dx.doi.org/
  • Zhao, Yixiong; Buchholz, Jan-Hendrik; Grenter, Thorben; Liu, Xuan; Vom Bogel, Gerd; Seidl, Karsten; Balzer, Jan C.; Bogel, Gerd Vom
    Sensitive and Robust Millimeter Wave/Terahertz Photonic Crystal Chip for Biosensing Applications
    In: IEEE Access Jg. 10 (2022) S. 92237 - 92248
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)
  • Zhao, Yixiong; Kubiczek, Tobias; Liu, Xuan; Sakaki, Masoud; Benson, Niels; Balzer, Jan C.
    A 3-D printed Platform for a Photonic Terahertz Spectrometer to Measure a Photonic Crystal Waveguide
    In: 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2022) / 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2022): Delft, Netherlands; 28 August 2022 - 02 September 2022 2022
    Online Volltext: dx.doi.org/
  • Zhao, Yixiong; Vora, Kunj; Liu, Xuan; Bögel, Gerd vom; Seidl, Karsten; Balzer, Jan C.
    Photonic Crystal Resonator in the Millimeter/Terahertz Range as a Thin Film Sensor for Future Biosensor Applications
    In: Journal of Infrared, Millimeter, and Terahertz Waves Jg. 43 (2022) Nr. 5-6, S. 426 - 444
    Online Volltext: dx.doi.org/ (Open Access)
  • Liu, Xuan; Schmitt, Lisa; Sievert, Benedikt; Lipka, Jonas; Geng, Chong; Kolpatzeck, Kevin; Erni, Daniel; Rennings, Andreas; Balzer, Jan C.; Hoffmann, Martin; Czylwik, Andreas
    Terahertz Beam Steering Using a MEMS-Based Reflectarray Configured by a Genetic Algorithm
    In: IEEE Access Jg. 10 (2022) S. 84458 - 84472
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)

    • 2021

  • Liu, Xuan; Kolpatzeck, Kevin; Häring, Lars; Balzer, Jan C.; Czylwik, Andreas
    Beam Steering for Terahertz Time-Domain Spectroscopy Using Optical Ring Resonators
    In: 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves: IRMMW-THz 2021 / 46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) ; August 30 - September 3, 2021, Chengdu, China / Liu, Shenggang (Hrsg.) 2021
    Online Volltext: dx.doi.org/
  • Cherniak, Vladyslav; Kolpatzeck, Kevin; Liu, Xuan; Tybussek, Kai-Henning; Damyanov, Dilyan; Schultze, Thorsten; Czylwik, Andreas; Balzer, Jan C.
    Compact and Inexpensive Terahertz System Driven by Monolithically Integrated Commercial Light Sources
    In: 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves: IRMMW-THz 2021 / 46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) ; August 30 - September 3, 2021, Chengdu, China / Liu, Shenggang (Hrsg.) 2021
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Krämer, Peter; Liu, Xuan; Kubiczek, Tobias; Balzer, Jan C.; Czylwik, Andreas
    Interferometric Time Synchronization of a Terahertz Time-Domain Spectroscopy System Driven by a Mode-Locked Laser Diode
    In: 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves: IRMMW-THz 2021 / 46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) ; August 30 - September 3, 2021, Chengdu, China / Liu, Shenggang (Hrsg.) 2021
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Damyanov, Dilyan; Liu, Xuan; Schultze, Thorsten; Balzer, Jan C.; Czylwik, Andreas
    Imaging with an Ultra-High Repetition Rate Terahertz Time-Domain Spectroscopy System Driven by a Mode-Locked Laser Diode
    In: 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves: IRMMW-THz 2021 / 46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) ; August 30 - September 3, 2021, Chengdu, China / Liu, Shenggang (Hrsg.) 2021
    Online Volltext: dx.doi.org/
  • Liu, Xuan; Schmitt, Lisa; Kolpatzeck, Kevin; Hoffmann, Martin; Balzer, Jan C.; Czylwik, Andreas
    Configuration of a MEMS-based Terahertz Reflectarray Using a Genetic Algorithm
    In: 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves: IRMMW-THz 2021 / 46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) ; August 30 - September 3, 2021, Chengdu, China / Liu, Shenggang (Hrsg.) 2021
    Online Volltext: dx.doi.org/
  • Schmitt, Lisa; Liu, Xuan; Czylwik, Andreas; Hoffmann, Martin
    Design and fabrication of MEMS reflectors for THz reflect-arrays
    In: Proceedings of the 4th International Workshop on Mobile Terahertz Systems / IWMTS 2021; 5-6 July 2021; Essen, Germany 2021 9486804
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Liu, Xuan; Häring, Lars; Balzer, Jan C.; Czylwik, Andreas
    Ultra-High Repetition Rate Terahertz Time-Domain Spectroscopy for Micrometer Layer Thickness Measurement
    In: Sensors Jg. 21 (2021) Nr. 16, 5389
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)

    • 2020

  • Kolpatzeck, Kevin; Dedic, Muhamed; Kramer, Peter; Liu, Xuan; Cherniak, Vladyslav; Tybussek, Kai-Henning; Zander, Marlene; Haring, Lars; Balzer, Jan C.; Czylwik, Andreas
    Enhancement of Terahertz Spectra by Model-Driven Spectral Shaping of a Mode-Locked Laser Diode in a Terahertz Time-Domain Spectroscopy System
    In: 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) / International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, 8-13 Nov. 2020, Buffalo, NY, USA 2020, S. 84 - 85
    Online Volltext: dx.doi.org/
  • Liu, Xuan; Geng, C.; Guo, X.; Kolpatzeck, Kevin; Haring, L.; Balzer, Jan C.; Czylwik, Andreas
    Design and Characterization of 3D Printed Polymer Terahertz Multi-Mode Interference Couplers
    In: 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) / International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, 8-13 Nov. 2020, Buffalo, NY, USA 2020, S. 538 - 539
    Online Volltext: dx.doi.org/
  • Damyanov, Dilyan; Batra, Aman; Friederich, B.; Kolpatzeck, Kevin; Liu, Xuan; Kaiser, Thomas; Schultze, Thorsten; Balzer, Jan C.
    High Resolution VNA THz Imaging for Large Distances
    In: 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) / International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, 8-13 Nov. 2020, Buffalo, NY, USA 2020, S. 619 - 620
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Liu, Xuan; Tybussek, Kai-Henning; Haring, Lars; Zander, Marlene; Rehbein, Wolfgang; Moehrle, Martin; Czylwik, Andreas; Balzer, Jan C.
    Analytical Modeling of Terahertz Time-Domain Spectroscopy with Monolithic Mode-Locked Laser Diodes
    In: 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) / International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, 8-13 Nov. 2020, Buffalo, NY, USA 2020, S. 811 - 812
    Online Volltext: dx.doi.org/
  • Schmitt, Lisa; Schmitt, Philip; Liu, Xuan; Czylwik, Andreas; Hoffmann, Martin
    Micromechanical Reflect-Array for THz Radar Beam Steering based on a Mechanical D/A Converter and a Mechanical Amplifier
    In: 3rd International Workshop on Mobile Terahertz Systems / IWMTS 2020; Essen, Germany; 1-2 July 2020 2020, S. 9166235
    Online Volltext: dx.doi.org/
  • Liu, Xuan; Samfaß, Lisa; Kolpatzeck, Kevin; Häring, Lars; Balzer, Jan C.; Hoffmann, Martin; Czylwik, Andreas
    Terahertz beam steering concept based on a MEMS-reconfigurable reflection grating
    In: Sensors Jg. 20 (2020) Nr. 10, S. 2874
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)
  • Kolpatzeck, Kevin; Liu, Xuan; Tybussek, Kai-Henning; Häring, Lars; Zander, Marlene; Rehbein, Wolfgang; Moehrle, Martin; Czylwik, Andreas; Balzer, Jan C.
    System-theoretical modeling of terahertz time-domain spectroscopy with ultra-high repetition rate mode-locked lasers
    In: Optics Express (OpEx) Jg. 28 (2020) Nr. 11, S. 16935 - 16950
    Online Volltext: dx.doi.org/ (Open Access)
  • Liu, Xuan; Kolpatzeck, Kevin; Häring, Lars; Balzer, Jan C.; Czylwik, Andreas
    Wideband beam steering concept for terahertz time-domain spectroscopy: Theoretical considerations
    In: Sensors Jg. 20 (2020) Nr. 19, S. 5568
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)

    • 2019

  • Tonder, Sebastian; Kolpatzeck, Kevin; Liu, Xuan; Rumpza, Sebastian; Czylwik, Andreas; Balzer, Jan C.
    A compact THz quasi TDS system for mobile scenarios
    In: 2nd International Workshop on Mobile Terahertz Systems / IWMTS 2019; Bad Neuenahr; Germany; 1 - 3 July 2019 2019, S. 8823786
    Online Volltext: dx.doi.org/
  • Damyanov, Dilyan; Friederich, Benedikt; Yahyapour, Milad; Vieweg, Nico; Deninger, Anselm; Kolpatzeck, Kevin; Liu, Xuan; Czylwik, Andreas; Schultze, Thorsten; Willms, Ingolf; Balzer, Jan
    High Resolution Lensless Terahertz Imaging and Ranging
    In: IEEE Access Jg. 7 (2019) S. 147704 - 147712
    Online Volltext: dx.doi.org/ Online Volltext (Open Access)
  • Liu, Xuan; Kolpatzeck, Kevin; Öztürk, A.; Friederich, Benedikt; Damyanov, Dilyan; Häring, Lars; Schultze, Thorsten; Balzer, Jan C.; Czylwik, Andreas
    Wideband characterization of 3D printed THz rectangular dielectric waveguides by THz frequency-domain spectroscopy
    In: 2nd International Workshop on Mobile Terahertz Systems / IWMTS 2019; Bad Neuenahr; Germany; 1 - 3 July 2019 2019, S. 8823720
    Online Volltext: dx.doi.org/
  • Damyanov, Dilyan; Friederich, Benedikt; Kohl, J.; Liu, Xuan; Kolpatzeck, Kevin; Schultze, Thorsten; Czylwik, Andreas; Balzer, Jan C.; Willms, Hans-Ingolf
    Super-resolution restoration of low-resolution THz camera images
    In: 2nd International Workshop on Mobile Terahertz Systems / IWMTS 2019; Bad Neuenahr; Germany; 1 - 3 July 2019 2019, S. 8823667
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Liu, Xuan; Friederich, Benedikt; Damyanov, Dilyan; Häring, Lars; Schultze, Thorsten; Balzer, Jan C.; Czylwik, Andreas
    Wideband radiation pattern measurement of terahertz antenna-integrated photodiodes by frequency-domain spectroscopy
    In: 2nd International Workshop on Mobile Terahertz Systems / IWMTS 2019; Bad Neuenahr; Germany; 1 - 3 July 2019 2019, S. 8823782
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Liu, Xuan; Nellen, S.; Friederich, Benedikt; Damyanov, Dilyan; Häring, Lars; Schultze, Thorsten; Globisch, Björn; Balzer, Jan C.; Czylwik, Andreas
    Wideband radiation pattern simulation and measurement of a photodiode-based continuous-wave THz emitter
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz: Proceedings / 44th International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz 2019, 01.-06.09.2019, Paris 2019
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Tonder, Sebastian; Liu, Xuan; Czylwik, Andreas; Balzer, Jan C.
    Characterization and Application of a Commercially Available Laser Diode in a THz System
    In: 2019 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications / IMWS-AMP 2019, 16-18 July 2019 2019, S. 118 - 120
    Online Volltext: dx.doi.org/
  • Liu, Xuan; Kolpatzeck, Kevin; Friederich, Benedikt; Damyanov, Dilyan; Häring, Lars; Schultze, Thorsten; Balzer, Jan C.; Czylwik, Andreas
    Spectroscopic characterization of 3D printed THz rectangular polymer waveguides
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz: Proceedings / 44th International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz 2019, 01.-06.09.2019, Paris 2019
    Online Volltext: dx.doi.org/
  • Friederich, Benedikt; Damyanov, Dilyan; Kohlhause, Jürgen; Kolpatzeck, Kevin; Liu, Xuan; Schultze, Thorsten; Czylwik, Andreas; Balzer, Jan C.; Willms, Hans-Ingolf
    High resolution image processing technique for the detection of metal entrapments based on a terahertz camera
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz: Proceedings / 44th International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz 2019, 01.-06.09.2019, Paris 2019
    Online Volltext: dx.doi.org/
  • Damyanov, Dilyan; Friederich, Benedikt; Kolpatzeck, Kevin; Liu, Xuan; Yahyapour, Milad; Vieweg, Nico; Deninger, Anselm J.; Schultze, Thorsten; Willms, Hans-Ingolf; Balzer, Jan C.
    High resolution lensless THz imaging with an ultrafast TDS system
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz: Proceedings / 44th International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz 2019, 01.-06.09.2019, Paris 2019
    Online Volltext: dx.doi.org/

    • 2018

  • Liu, Xuan; Kolpatzeck, Kevin; Häring, Lars; Czylwik, Andreas
    Experimental Validation of a Phase Control Concept for Photonically Steered Terahertz Phased Array Transmitters at Microwave Frequencies
    In: 2018 1st International Workshop on Mobile Terahertz Systems, IWMTS 2018 / 1st International Workshop on Mobile Terahertz Systems, IWMTS 2018, Duisburg, Germany, 2 July 2018 through 4 July 2018 2018
    Online Volltext: dx.doi.org/
  • Friederich, Benedikt; Kolpatzeck, Kevin; Liu, Xuan; Schultze, Thorsten; Balzer, Jan C.; Czylwik, Andreas; Willms, Hans-Ingolf
    Preprocessing for Robust Estimation of Material Parameters by Continuous Wave THz Spectroscopy
    In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz / 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 9-14 Sept. 2018 2018
    Online Volltext: dx.doi.org/
  • Kolpatzeck, Kevin; Liu, Xuan; Häring, Lars; Czylwik, Andreas
    System-Theoretical Modeling and Analysis of Phase Control in a Photonically Steered Terahertz Phased Array Transmitter
    In: 2018 1st International Workshop on Mobile Terahertz Systems, IWMTS 2018 / 1st International Workshop on Mobile Terahertz Systems, IWMTS 2018, Duisburg, Germany, 2 July 2018 through 4 July 2018 2018
    Online Volltext: dx.doi.org/