H
Henkjan Gersen
Researcher at University of Bristol
Publications - 60
Citations - 1956
Henkjan Gersen is an academic researcher from University of Bristol. The author has contributed to research in topics: Near-field scanning optical microscope & Photonic crystal. The author has an hindex of 20, co-authored 54 publications receiving 1866 citations. Previous affiliations of Henkjan Gersen include Aarhus University & University of Twente.
Papers
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Journal ArticleDOI
Real-Space Observation of Ultraslow Light in Photonic Crystal Waveguides
Henkjan Gersen,Timothy J. Karle,R.J.P. Engelen,Wim Bogaerts,Jeroen P. Korterik,N.F. van Hulst,Thomas F. Krauss,Laurens Kuipers,Laurens Kuipers +8 more
TL;DR: The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.
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Tracking Femtosecond Laser Pulses in Space and Time
TL;DR: It is shown that the propagation of a femtosecond laser pulse inside a photonic structure can be directly visualized and tracked as it propagates using a time-resolved photon scanning tunneling microscope.
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Influencing the angular emission of a single molecule
Henkjan Gersen,Maria F. Garcia-Parajo,Lukas Novotny,J.A. Veerman,Laurens Kuipers,N.F. van Hulst +5 more
TL;DR: An excellent agreement between experiments and 2D-numerical simulations is found for molecules oriented perpendicular to the sample, whereas, for parallel orientations, the observed behavior contradicts the calculated behavior.
Journal ArticleDOI
Direct Observation of Bloch Harmonics and Negative Phase Velocity in Photonic Crystal Waveguides
Henkjan Gersen,Timothy J. Karle,R.J.P. Engelen,Wim Bogaerts,Jeroen P. Korterik,N.F. van Hulst,Thomas F. Krauss,Laurens Kuipers,Laurens Kuipers +8 more
TL;DR: The eigenfield distribution and the band structure of a photonic crystal waveguide have been measured with a phase-sensitive near-field scanning optical microscope and the lateral mode profile for modes separated by one reciprocal lattice vector is found to be different.
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Cyanuric Acid and Melamine on Au(111): Structure and Energetics of Hydrogen-Bonded Networks
Wei Xu,Mingdong Dong,Henkjan Gersen,Henkjan Gersen,E. Rauls,Socorro Vazquez-Campos,Mercedes Crego-Calama,David N. Reinhoudt,Ivan Stensgaard,Erik Lægsgaard,Trolle R. Linderoth,Flemming Besenbacher +11 more
TL;DR: The adsorption and coadsorption of M and CA on a Au(111) surface under ultrahigh vacuum (UHV) is investigated using STM with submolecular resolution, and a novel phase with a 1:3 CA/M forms upon sequential deposition.