ORCID Profile
0000-0003-1617-5748
Current Organisations
University of Amsterdam
,
amolf
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Publisher: American Association for the Advancement of Science (AAAS)
Date: 05-2015
Abstract: The study of light at the nanoscale has become a vibrant field of research, as researchers now master the flow of light at length scales far below the optical wavelength, largely surpassing the classical limits imposed by diffraction. Using metallic and dielectric nanostructures precisely sculpted into two-dimensional (2D) and 3D nanoarchitectures, light can be scattered, refracted, confined, filtered, and processed in fascinating new ways that are impossible to achieve with natural materials and in conventional geometries. This control over light at the nanoscale has not only unveiled a plethora of new phenomena but has also led to a variety of relevant applications, including new venues for integrated circuitry, optical computing, solar, and medical technologies, setting high expectations for many novel discoveries in the years to come.
Publisher: American Chemical Society (ACS)
Date: 09-06-2007
DOI: 10.1021/NL070807Q
Publisher: American Chemical Society (ACS)
Date: 22-02-2007
DOI: 10.1021/NL0630034
Abstract: We describe how optical contact lithography based on plasmon particle array masks allows generation of a large number of different subwavelength exposure patterns using a single mask. Within an exact point dipole model, we study the local response of silver particles in small two-dimensional arrays with 50-200 nm spacing. We show how illumination with unfocused light allows optically addressing particles either in idually or in controlled configurations which pattern will be exposed by the mask is programmed by varying the wavelength, incidence angle, and polarization of the incident wave.
Publisher: American Chemical Society (ACS)
Date: 08-12-2015
Publisher: American Physical Society (APS)
Date: 17-03-2009
Publisher: American Chemical Society (ACS)
Date: 09-08-2022
Publisher: American Physical Society (APS)
Date: 21-09-2007
Publisher: Walter de Gruyter GmbH
Date: 07-2019
Abstract: Photonic metasurfaces, that is, two-dimensional arrangements of designed plasmonic or dielectric resonant scatterers, have been established as a successful concept for controlling light fields at the nanoscale. While the majority of research so far has concentrated on passive metasurfaces, the direct integration of nanoscale emitters into the metasurface architecture offers unique opportunities ranging from fundamental investigations of complex light-matter interactions to the creation of flat sources of tailored light fields. While the integration of emitters in metasurfaces as well as many fundamental effects occurring in such structures were initially studied in the realm of nanoplasmonics, the field has recently gained significant momentum following the development of Mie-resonant dielectric metasurfaces. Because of their low absorption losses, additional possibilities for emitter integration, and compatibility with semiconductor-based light-emitting devices, all-dielectric systems are promising for highly efficient metasurface light sources. Furthermore, a flurry of new emission phenomena are expected based on their multipolar resonant response. This review reports on the state of the art of light-emitting metasurfaces, covering both plasmonic and all-dielectric systems.
Publisher: American Physical Society (APS)
Date: 13-11-2007
Publisher: Springer Science and Business Media LLC
Date: 03-02-2014
DOI: 10.1038/NCOMMS4250
Abstract: Directing light emission is key for many applications in photonics and biology. Optical antennas made from nanostructured plasmonic metals are suitable candidates for this purpose but designing antennas with good directional characteristics can be challenging, especially when they consist of multiple elements. Here we show that strongly directional emission can also be obtained from a simple in idual gold nanodisk, utilizing the far-field interference of resonant electric and magnetic modes. Using angle-resolved cathodoluminescence spectroscopy, we find that the spectral and angular response strongly depends on excitation position. For excitation at the nanodisk edge, interference between in-plane and out-of-plane dipole components leads to strong beaming of light. For large nanodisks, higher-order multipole components contribute significantly to the scattered field, leading to enhanced directionality. Using a combination of full-wave simulations and analytical point scattering theory we are able to decompose the calculated and measured scattered fields into dipolar and quadrupolar contributions.
Publisher: American Physical Society (APS)
Date: 07-07-2006
Publisher: American Chemical Society (ACS)
Date: 04-11-2014
DOI: 10.1021/PH500225J
Publisher: American Chemical Society (ACS)
Date: 03-08-2011
DOI: 10.1021/NL201839G
Abstract: Optical nanoantennas mediate optical coupling between single emitters and the far field, making both light emission and reception more effective. Probing the response of a nanoantenna as a function of position requires accurate positioning of a subwavelength sized emitter with known orientation. Here we present a novel experimental technique that uses a high-energy electron beam as broad band point dipole source of visible radiation, to study the emission properties of a Yagi-Uda antenna composed of a linear array of Au nanoparticles. We show angle-resolved emission spectra for different wavelengths and find evidence for directional emission of light that depends strongly on where the antenna is excited. We demonstrate that the experimental results can be explained by a coupled point dipole model which includes the effect of the dielectric substrate. This work establishes angle-resolved cathodoluminescence spectroscopy as a powerful technique tool to characterize single optical nanoantennas.
Publisher: American Chemical Society (ACS)
Date: 11-2019
No related grants have been discovered for Femius Koenderink.