Publications

publications 650

Selected publications featuring Protemics' TeraSpike microprobe technology:

Enablers for IBC: integral cell and module development and implementation in PV industry

I. Cesar, N. Guillevin, A. A. Mewe, et al.

Energy Procedia, Vol. 124, pp. 834-841 (2017). [HTML


Terahertz diffraction enhanced transparency probed in the near field

A. Halpin, N. v. Hoof, A. Bhattacharya, C. Mennes, and J. G. Rivas

Phys. Rev. B 96, 085110 (2017). [HTML]


High resolution THz scanning for optimization of dielectric layer opening process on doped Si surfaces

P. Spinelli, F.J.K. Danzl, D. Deligiannis, et al.

IEEE 44th Photovoltaic Specialist Conference (PVSC), Washington DC, June 25 - 30 (2017). [PDF]


Fiber-Drawn Metamaterial for THz Waveguiding and Imaging

S. Atakaramians, A. Stefani, H. Li, et al.

J Infrared Milli Terahz Waves (2017). doi:10.1007/s10762-017-0383-0 [HTML]


Visualizing near-field coupling in terahertz dolmens

A. Halpin, C. Mennes, A. Bhattacharya, and J. Gómez Rivas

Appl. Phys. Lett. 110, 101105 (2017); doi: 10.1063/1.4978031 [HTML]


Simultaneous measurement of doping concentration and carrier lifetime in silicon using terahertz time-domain transmission

M. Lenz, C. Matheisen, M. Nagel, and J. Knoch

Appl. Phys. Lett. 110, 072103 (2017); doi: 10.1063/1.4976314 [HTML]


Photoconductive microprobe based near-field scanning of Terahertz resonances of a single high-index TiO2 microsphere

M. Nagel, S. Sawallich, C. Elissalde, P. Mounaix, C. Matheisen

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41th International Conference on, (2016). [HTML]


Contact-free high-resolution conductivity mapping of large-area graphene covered with an ion gel top-gate

S. Sawallich, M. Mohsin, C. Matheisen, D. Neumaier, M. Nagel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41th International Conference on, (2016). [HTML]


High resolution sheet resistance mapping to unveil edge effects in industrial IBC solar cells

P. Spinelli, P. Danzl, N. Guillevin, A. Mewe, S. Sawallich, A. Vlooswijk, Bas van de Loo, Erwin Kessels, Michael Nagel, Ilkay Cesar

Energy Procedia 92, 218-224 (2016). [HTML]


Photoconductive Terahertz Near-Field Detectors for Operation With 1550-nm Pulsed Fiber Lasers

S. Sawallich, B. Globisch, C. Matheisen, M. Nagel, R. JB Dietz, and T. Göbel

IEEE Transactions on Terahertz Science and Technology, 99, 1-6, (2016). [HTML]


Large near-to-far field spectral shifts for terahertz resonances

A. Bhattacharya, G. Georgiou, S. Sawallich, C. Matheisen, M. Nagel, and J. Gómez Rivas

Phys. Rev. B 93, 035438 (2016). [HTML


Mapping the near-field propagation of surface plasmons on terahertz metasurfaces 

Y. Xu, X. Zhang, Z. Tian, J. Gu, C. Ouyang, Y. Li, J. Han, and W. Zhang

Appl. Phys. Lett. 107, 021105 (2015). [HTML]


Coplanar stripline (CPS) emitter and transceiver microprobes for ultra-high bandwidth on-chip Terahertz measurements

C. Matheisen, M. Nagel, S. Sawallich

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on, 1-2 (2015). [HTML]


High-resolution interdigitated back contact solar cell inspection using Terahertz microprobe

S. Sawallich, C. Matheisen, M. Nagel, I. Cesar

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on, 1-2 (2015). [HTML]


Investigation of dopant segregation induced surface-fields using THz pulse transmission

M. Lenz, A. Kianfar, S. Nordmann, S. Sawallich, M. Nagel, B. Berghoff, and J. Knoch

IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-4 (2015). [HTML]


Time-domain high-speed read-out of terahertz resonator arrays with sub-single-resonator resolution

M. Nagel, C. Matheisen, S. Sawallich

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on, 1-2 (2015). [HTML]


Photoconductive microprobe enabled on-chip and wafer-scale Terahertz sensing applications

M. Nagel, C. Matheisen, S. Sawallich, H. Kurz

Optical Sensors, Optical Society of America, SeM2D.5 (2015). [HTML]


THz near-field microscopy of semiconductor and metal bowtie antennas

A. Bhattacharya, G. Georgiou, S. Sawallich, C. Matheisen, M. Nagel, J. Gomez Rivas

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on (2014). [PDF]


Electro-optic light modulation and THz generation in locally plasma-activated silicon nanophotonic devices

C. Matheisen, M. Waldow, B. Chmielak, S. Sawallich, T. Wahlbrink, J. Bolten, M. Nagel, and H. Kurz

Opt. Express, Vol. 22, Issue 5, pp. 5252-5259 (2014). [PDF]


THz microprobe system for contact-free high-resolution sheet resistance imaging

M. Nagel, A. Safiei, S. Sawallich, C. Matheisen, T. M. Pletzer, A. A. Mewe, N. J. C. M. van der Borg, I. Cesar, and H. Kurz

28th European Photovoltaic Solar Energy Conference and Exhibition, pp. 856-860 (2013). [PDF]


Polymer identification with terahertz technology

A. Maul and M. Nagel

OCM 2013-Optical Characterization of Materials-conference proceedings, 265 (2013). [html]


Novel techniques in terahertz imaging and sensing

M. Nagel, C. Matheisen, H. Kurz

Handbook of Terahertz Technology for Imaging, Sensing and Communications. Edited by D. Saeedkia, Woodhead Publishing Ltd. 2013. [ISBN 978-0-85709-649-4]


Experimental demonstration of phase-matched THz generation in plasma-activated silicon nanophotonic emitters

S. Sawallich, C. Matheisen, M. Nagel, T. Wahlbrink, J. Bolten, H. Kurz

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on (2013). [PDF]


High-Speed Near-Field Imaging System Based On Photoconductive Terahertz Microprobes

C. Matheisen, M. Nagel, S. Sawallich, H. Kurz, G. Georgiou, J. Gomez-Rivas

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on (2013).


Terahertz Transceiver Microprobe For Chip-Inspection Applications Using Optoelectronic Time-Domain Reflectometry

M. Nagel, C. Matheisen, S. Sawallich, H. Kurz, S. Dobritz

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on (2013).


Active Terahertz near-field probes for high-resolution free-carrier density imaging applications

M. Nagel, A. Safiei, T. Pletzer, H. Kurz

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on (2012). [DOI] [URL]


Continuous-wave terahertz near-field spectroscopy and imaging with a micro-machined photomixer probe-tip

M. Nagel, C. Matheisen, A. Deninger, H. Kurz

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on (2012). [DOI] [URL]


Terahertz reflectometry images faults in silicon chips

M. Nagel and H. Kurz

Laser Focus World, 47, 11, pp 61-64 (2011) [URL]


Near-field investigation of THz surface-wave emission from optically excited graphite flakes

M. Nagel, A. Michalski, T. Botzem and H. Kurz

Opt. Express., 2, 2011. Vol. 19(5), pp. 4667-4672. OSA. [DOI] [URL]


Pockels effect based fully integrated, strained silicon electro-optic modulator

B. Chmielak, M. Waldow, C. Matheisen, C. Ripperda, J. Bolten, T. Wahlbrink, M. Nagel, F. Merget, and H. Kurz

Optics Express, Vol. 19, Issue 18, pp. 17212-17219 (2011). [DOI] [URL]


Contact-free fault location and imaging with on-chip terahertz time-domain reflectometry

M. Nagel, A. Michalski and H. Kurz

Opt. Express., 6, 2011. Vol. 19(13), pp. 12509-12514. [DOI] [URL]


A new technique to measure loss, effective refractive index and electric field distribution of THz porous fibers

S. Atakaramians, S. Afshar V., M. Nagel, T. M. Monro, and D. Abbott

CLEO: Science and Innovations, Baltimore, Maryland United States, May 1-6 (2011) [DOI] [URL]


Direct probing of evanescent field for characterization of porous terahertz fibers

S. Atakaramians, S. Afshar V., M. Nagel, H. K. Rasmussen, O. Bang, T. M. Monro and D. Abbott

Appl. Phys. Lett. 98, 121104 (2011) [DOI] [URL]


Optical generation of terahertz and second-harmonic light in plasma-activated silicon nanophotonic structures

M. Wächter, C. Matheisen, M. Waldow, T. Wahlbrink, J. Bolten, M. Nagel and H. Kurz

Appl. Phys. Lett. 97, 161107 (2010) [DOI] [URL] [PDF]


Fluidic channel waveguide coupler for nl-volume sensing applications

M. Wächter, M. Nagel and H. Kurz

Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on [DOI] [URL]


Terahertz near-field imaging with tapered sommerfeld-wire waveguides

M. Awad, M. Nagel and H. Kurz

Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on [DOI] [URL]


Free-standing tapered probe-tip for high resolution photoconductive terahertz field sampling

M. Wächter, M. Nagel and H. Kurz

Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on [DOI] [URL]


Tapered photoconductive terahertz field probe tip with subwavelength spatial resolution

M. Wächter, M. Nagel and H. Kurz

Appl. Phys. Lett. 95, 041112 (2009) [DOI] [URL]


Tapered Sommerfeld wire terahertz near-field imaging

M. Awad, M. Nagel and H. Kurz

Appl. Phys. Lett. 94, 051107 (2009) [DOI] [URL]