Koninklijke Philips Corporation N.v.

Technische Universiteit Eindhoven

Jaime Gómez Rivas

Rifat Ata Mustafa Hikmet

Ties Van Bommel

Marcus Antonius Verschuuren

Dirk Kornelis Gerhardus De Boer

Gabriel Sebastian Lozano Barbero

Henri-Alexei Halpin

Arkabrata Bhattacharya

Georgios Georgiou

Niels Jacobus Johan Van Hoof

Stan Erik Theodoor Ter Huurne

This disclosure relates to a method for measuring an electric field in the near-field region of an optically excited sample. The method includes optically exciting at least part of the sample. This step includes directing excitation light onto an interface between the sample and a medium. The excitation light is incident onto the interface under an angle of incidence such that total internal reflection of the excitation light occurs at the interface. The method further includes measuring the electric field using a terahertz near-field probe, wherein the terahertz near-field probe is positioned on one side of the interface and the excitation light approaches the interface on another side of the interface. This disclosure further relates to a system and computer program for measuring an electric field in the near-field region of an optically excited sample.

Method and system for performing terahertz near-field measurements

There is provided an illumination device () comprising an energy source () for exciting a photon emitter; a first wavelength conversion layer () and a second wavelength conversion layer (). At least one of the first and second wavelength conversion layer comprises a periodic plasmonic antenna array comprising a plurality of individual antenna elements (). The wavelength converting medium in the wavelength conversion layer in which the antenna array is arranged comprises photon emitters arranged in close proximity of the plasmonic antenna array such that at least a portion of photons emitted from the wavelength conversion layer are emitted by a coupled system comprising the photon emitter and the plasmonic antenna array. The plasmonic antenna array is configured to support plasmonic-photonic lattice resonances at a frequency range corresponding to the wavelength range of the photon emitter in the layer in which the plasmonic antenna array is arranged, such that light emitted from the plasmonic antenna array has an anisotropic angle distribution.

Enhanced emission from plasmonic coupled emitters for solid state lighting

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Eindhoven, Netherlands

Jaime Gómez Rivas