Kappeler, Roman

Roman Kappeler received his diploma (MSc EEIT ETH) 2007 from ETH Zurich. During his studies he worked at the Institute of Integrated Systems on Sample Rate Converters, in the Laboratory for Electromagnetic Fields and Microwave Electronics and the Electronics Laboratory on circular Bragg gratings, the Institute of Optics in the Nano-Optics Group (Rochester, USA) on Optical Antennae and at the European Space Research and Technology Centre in Nordwijk NL on radiation testing of passive optical components.

In 2006 he joined the Communication Photonics Group and is working together with P. Kaspar in the same project aming the implementation of a photonic crystal based SOA. His focus is on the modeling of active photonic crystals.

Research Interests

• Active Photonic Crystals
• Modeling of Semiconductor Devices

Publications

2012

• Design proposal for a low loss in-plane active photonic crystal waveguide with vertical electrical carrier injection
  Roman Kappeler, Peter Kaspar, Peter Friedli and Heinz Jäckel
  (2012), in: Opt. Express, 20:8(9264-9275)
  [ BiBTeX RIS PDF DOI URL ]
• Three operation modes for Tbit/s all-optical switching with intersubband transitions in InGaAs/AlAs/AlAsSb quantum wells
  Yuriy Fedoryshyn, Ping Ma, J. Faist, Peter Kaspar, Roman Kappeler, M. Beck, J. Holzman and Heinz Jäckel
  (2012), in: Quantum Electronics, IEEE Journal of, PP:99(1)
  [ BiBTeX RIS DOI ]

2011

• Limitations of Cl2/O2-based ICP-RIE of deep holes for planar photonic crystals in InP
  Peter Kaspar, Christopher Fougner, Roman Kappeler and Heinz Jäckel
  (2011), in: Phys. Status Solidi C, 9:2(239-242)
  [ BiBTeX RIS DOI URL ]
• Loss-relevant structural imperfections in substrate-type photonic crystal waveguides
  Roman Kappeler, Peter Kaspar and Heinz Jäckel
  (2011), in: Lightwave Technology, Journal of, 29:21(3156 -3166)
  [ BiBTeX RIS DOI URL ]
• Propagation loss computation of W1 photonic crystal waveguides using the cutback technique with the 3D-FDTD method
  Roman Kappeler, Peter Kaspar and Heinz Jäckel
  (2011), in: Photonics and Nanostructures - Fundamentals and Applications, 9:3(235 - 247)
  [ BiBTeX RIS DOI URL ]
• Relevance of the light line in planar photonic crystal waveguides with weak vertical confinement
  Peter Kaspar, Roman Kappeler, Daniel Erni and Heinz Jäckel
  (2011), in: Opt. Express, 19:24(24344-24353)
  [ BiBTeX RIS PDF DOI URL ]

2010

• Air-bridge contact fabrication for in-plane active photonic crystal devices
  Peter Kaspar, Roman Kappeler, Peter Friedli and Heinz Jäckel
  in: 22nd International Conference on Indium Phosphide and Related Materials, pages 304-307, 2010
  [ BiBTeX RIS PDF DOI URL ]
• Efficient computation of photonic crystal waveguide modes with dispersive material
  Kersten Schmidt and Roman Kappeler
  (2010), in: Opt. Express, 18:7(7307-7322)
  [ BiBTeX RIS URL ]

2008

• The impact of metallic contacts on propagation losses of an underlying photonic crystal waveguide
  Peter Kaspar, Roman Kappeler, Fouad Karouta, Franck Robin, Patric Strasser and Heinz Jäckel
  in: Proc. SPIE 7031, 2008
  [ BiBTeX RIS DOI URL ]

2007

• Field Computations of Optical Antennas
  Roman Kappeler, Daniel Erni, Cui Xudong and L. Novotny
  (2007), in: J. Comput. Theor. Nanosci., 4:3(686-691)
  [ BiBTeX RIS ]
• Sidewall roughness measurement inside photonic crystal holes by atomic force microscopy
  Patric Strasser, Franck Robin, C. F. Carlström, Robert Wüest, Roman Kappeler and Heinz Jäckel
  (2007), in: Nanotechnology, 18:40(405703)
  [ BiBTeX RIS ]

2005

• Measured radiation sensitivity of silica-on-silicon and silicon-on-insulator micro-photonic devices for potential space application
  Pieter Dumon, Roman Kappeler, Daniel Barros, Iain McKenzie, Dominic Doyle and Roel Baets
  
  [ BiBTeX RIS DOI URL ]

Fingerprint

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