M
Marcus S. Dahlem
Researcher at Katholieke Universiteit Leuven
Publications - 117
Citations - 2052
Marcus S. Dahlem is an academic researcher from Katholieke Universiteit Leuven. The author has contributed to research in topics: Silicon photonics & Photonics. The author has an hindex of 21, co-authored 110 publications receiving 1780 citations. Previous affiliations of Marcus S. Dahlem include GlobalFoundries & Khalifa University.
Papers
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Journal ArticleDOI
Photonic ADC: overcoming the bottleneck of electronic jitter.
Anatol Khilo,Steven J. Spector,Matthew E. Grein,Amir H. Nejadmalayeri,C.W. Holzwarth,Michelle Y. Sander,Marcus S. Dahlem,Michael Y. Peng,Michael W. Geis,Nicole DiLello,Jung U. Yoon,Ali R. Motamedi,Jason S. Orcutt,J. P. Wang,Cheryl Sorace-Agaskar,Milos A. Popovic,Jie Sun,G.-R. Zhou,Hyunil Byun,Jian Chen,Judy L. Hoyt,Henry I. Smith,Rajeev J. Ram,Michael H. Perrott,Theodore M. Lyszczarz,Erich P. Ippen,Franz X. Kärtner +26 more
TL;DR: This work demonstrates that the photonic approach can deliver on its promise by digitizing a 41 GHz signal with 7.0 effective bits using a photonic ADC built from discrete components, a 4-5 times improvement over the performance of the best electronic ADCs which exist today.
Journal ArticleDOI
Achieving centimetre-scale supercollimation in a large-area two-dimensional photonic crystal.
Peter T. Rakich,Marcus S. Dahlem,S. N. Tandon,Mihai Ibanescu,Marin Soljacic,Gale S. Petrich,John D. Joannopoulos,Leslie A. Kolodziejski,Erich P. Ippen +8 more
TL;DR: Through quantitative studies of the beam evolution in a two-dimensional PhC, it is found thatsupercollimation possesses unexpected but inherent robustness with respect to short-scale disorder such as fabrication roughness, enabling supercollimation over 600 isotropic diffraction-lengths.
Journal ArticleDOI
Reconfigurable multi-channel second-order silicon microring-resonator filterbanks for on-chip WDM systems
TL;DR: This filterbank is suitable for on-chip wavelength-division-multiplexing (WDM) applications, and has the largest-to-date reported number of channels built on an SOI platform.
Proceedings ArticleDOI
Maximizing the Thermo-Optic Tuning Range of Silicon Photonic Structures
Fuwan Gan,Tymon Barwicz,Milos A. Popovic,Marcus S. Dahlem,C.W. Holzwarth,Peter T. Rakich,Henry I. Smith,Erich P. Ippen,Franz X. Kärtner +8 more
TL;DR: In this paper, the authors demonstrate 20 nm thermo-optic tuning in silicon microring resonators with 16 nm free spectral range (FSR), the largest reported full-FSR thermal tuning, with a tuning efficiency of 28 muW/GHz.
Journal ArticleDOI
Quantifying charge carrier concentration in ZnO thin films by Scanning Kelvin Probe Microscopy
Carlo Maragliano,Samuele Lilliu,Marcus S. Dahlem,Matteo Chiesa,Tewfik Souier,Marco Stefancich +5 more
TL;DR: It is shown how to probe the charge carrier density of zinc oxide thin films by Scanning Kelvin Probe Microscopy, a technique that allows measuring the contact potential difference between the tip and the sample surface with high spatial resolution and results inferred are in accordance with carrier concentration expected.