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Dive into the research topics where H. G. Roskos is active.

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Featured researches published by H. G. Roskos.


IEEE Transactions on Microwave Theory and Techniques | 1995

Generation and detection of picosecond electric pulses with freely positionable photoconductive probes

T. Pfeifer; H.-M. Heiliger; H. G. Roskos; H. Kurz

Two different kinds of external photoconductive probes are investigated in detail. Their dual character in application as generators or detectors of picosecond electric transients is demonstrated. The probes are manufactured on transparent silicon-on-sapphire substrates suitable for on-wafer testing of integrated circuits. A detailed analysis of the freely positionable probes is performed in time domain with respect to linearity, sensitivity, time resolution and invasiveness.


IEEE Transactions on Microwave Theory and Techniques | 1993

Al-SiO/sub 2/-Al sandwich microstrip lines for high-frequency on-chip interconnects

J. Gondermann; E.G.S. von Kamienski; H. G. Roskos; H. Kurz

A downscaled 2- mu m-wide microstrip line fabricated with both signal and ground conductors on top of the substrate is presented. A significantly reduced geometric dispersion for a roughly 400-GHz bandwidth pulse was measured on this waveguide, using the time-resolved electrooptic sampling technique. The mode of the electromagnetic signal is strongly confined, promising reduced crosstalk between densely packed interconnects. >


Journal of the Optical Society of America | 1994

Fabrication and characterization of freely positionable silicon-on-sapphire photoconductive probes

Thomas Pfeifer; H.-M. Heiliger; E. Stein von Kamienski; H. G. Roskos; H. Kurz


Archive | 1995

Optoelectronic diode and component containing same

Olaf Hollricher; Frank Ruders; Christoph Buchal; H. G. Roskos; Jens Peter Hermanns; Elard Stein Von Kamienski; Klaus Rademacher


conference on lasers and electro-optics | 1996

Influence of insulation layers on the high-frequency properties of coplanar waveguides on Si

N.-M. Heiliger; T. Pfeifer; M. Vosseburger; H. G. Roskos; H. Kurz


Ultrafast Electronics and Optoelectronics (1993), paper A8 | 1993

Ultrafast Heterobarrier Metal-Semiconductor-Metal Photodetectors

E. Stein Von Stein Von Kamienski; H. G. Roskos; R. Kersting; J. Plettner; S. V. Averin; H.-J. Geelen; A. Kohl; B. Spangenberg; Karl Leo; H. Kurz


conference on lasers and electro-optics | 1995

Picosecond electric on-wafer testing with freely positionable photoconductive switches

H.-M. Heiliger; T. Pfeifer; H. G. Roskos; H. Kurz


Ultrafast Electronics and Optoelectronics (1995), paper UTUE8 | 1995

Fast Vertical Silicon Photodetectors with Buried CoSi2 Contact

H. G. Roskos; J. P. Hermann; S. F. Ruders; E. Stein Von Kamienski; Olaf Hollricher; Christoph Buchal; S. Mantl; H. Kurz


Archive | 1995

Diode sowie eine solche enthaltendes Bauelement Diode and such a component containing

Olaf Hollricher; Frank Rueders; Christoph Buchal; H. G. Roskos; Jens Peter Hermanns; Von Kamienski Elard Stein; Klaus Radermacher


Quantum Electronics | 1994

Heterobarrier photodiode MSM structures with subpicosecond temporal resolution

S. V. Averin; E. Stein von Kamienski; H. G. Roskos; R. Kersting; J. Pletner; H-J Geelen; A. Kohl; B. Spangenberg; K. Leo; H. Kurz; Olaf Hollricher

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H. Kurz

RWTH Aachen University

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Olaf Hollricher

Forschungszentrum Jülich

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S. V. Averin

Russian Academy of Sciences

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Frank Ruders

Forschungszentrum Jülich

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