Dr. Thomas Kleine-Ostmann Profile

Dr. Thomas Kleine-Ostmann

Scientist at Physikalisch-Technische Bundesanstalt

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Publications (5)

Proceedings Article | 18 June 2024 Presentation + Paper

Comb flatness dependence for orthogonally sampled high bandwidth signals

Souvaraj De, Janosch Meier, Younus Mandalawi, Karanveer Singh, Abhinand Venugopalan, Deepanshu Yadav, Ranjan Das, Nora Meyne, Kai Baaske, Thomas Kleine-Ostmann, Thomas Schneider

Proceedings Volume 12994, 1299407 (2024) https://doi.org/10.1117/12.3016964

KEYWORDS: Signal detection, Frequency combs, Signal processing, Analog to digital converters, Optical filters, Tunable filters, Modulators, Electronic filtering, Detection theory, Signal filtering

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Proceedings Article | 31 May 2023 Presentation + Paper

Thermal insulation of silicon ring modulators in densely-packed photonic integrated circuits

Souvaraj De, Ranjan Das, Karanveer Singh, Younus Mandalawi, Thomas Kleine-Ostmann, Thomas Schneider

Proceedings Volume 12575, 125750C (2023) https://doi.org/10.1117/12.2665595

KEYWORDS: Silicon, Waveguides, Design and modelling, Crosstalk, Photonic integrated circuits, Phase shifts, Signal processing, Silicon photonics, Integrated photonics, Doping

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Proceedings Article | 25 March 2005 Paper

Experimental and theoretical study of the THz absorption spectra of selected tripeptides

Frank Rutz, R. Wilk, T. Kleine-Ostmann, J. Grunenberg, Martin Koch

Proceedings Volume 5727, (2005) https://doi.org/10.1117/12.590532

KEYWORDS: Terahertz radiation, Absorption, Molecules, Spectroscopy, Terahertz spectroscopy, Hydrogen, Ions, Proteins, Magnesium, Chemical species

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Proceedings Article | 29 December 2004 Paper

Room-temperature semiconductor modulators for free-space signal transmission with THz waves

Thomas Kleine-Ostmann, Klaus Pierz, Günter Hein, Philip Dawson, Martin Koch

Proceedings Volume 5593, (2004) https://doi.org/10.1117/12.569576

KEYWORDS: Terahertz radiation, Modulators, Modulation, Signal detection, Capacitance, Sensors, Gallium arsenide, Chromium, Picosecond phenomena, Semiconductors

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Proceedings Article | 12 June 2002 Paper

Semiconductor laser with simultaneous tunable dual-wavelength emission

Martin Breede, Tilman Hoener zu Siederdissen, Josef Kovacs, Jens Struckmeier, Joerg Zimmermann, Stefan Hoffmann, Martin Hofmann, Thomas Kleine-Ostmann, Pascal Knobloch, Martin Koch, Jan-Peter Meyn

Proceedings Volume 4646, (2002) https://doi.org/10.1117/12.470546

KEYWORDS: Semiconductor lasers, Terahertz radiation, Mirrors, Spectral resolution, Tunable lasers, LCDs, Diodes, Digital micromirror devices, Second-harmonic generation, Diffraction gratings

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