Visible-to-THz near-field nanoscopy
Optical microscopy has a key role in research, development and quality control across a
wide range of scientific, technological and medical fields. However, diffraction limits the …
wide range of scientific, technological and medical fields. However, diffraction limits the …
Fourier analysis of near-field patterns generated by propagating polaritons
Scattering-type scanning near-field optical microscope (s-SNOM) has become an essential
tool to study polaritons—quasiparticles of light coupled to collective charge oscillations—via …
tool to study polaritons—quasiparticles of light coupled to collective charge oscillations—via …
Confocal polarization tomography of dielectric nanocavities
F Schröder, MP van Exter, M **ong… - arxiv preprint arxiv …, 2024 - arxiv.org
We employ polarization tomography to characterize the modal properties of a dielectric
nanocavity with sub-wavelength mode confinement. Our analysis of reflection spectra shows …
nanocavity with sub-wavelength mode confinement. Our analysis of reflection spectra shows …
Near-field refractometry of van der Waals crystals
Common techniques for measuring refractive indices, such as ellipsometry and goniometry,
are ineffective for van der Waals crystal flakes because of their high anisotropy and small …
are ineffective for van der Waals crystal flakes because of their high anisotropy and small …
Collective single-photon emission and energy transfer in thin-layer dielectric and plasmonic systems
We study the collective photon decay of multiple quantum emitters embedded in a thin high-
index dielectric layer such as hexagonal boron nitride (hBN), with and without a metal …
index dielectric layer such as hexagonal boron nitride (hBN), with and without a metal …
Strong coupling between a dielectric nanocavity and a monolayer transition metal dichalcogenide
F Schröder, P Wyborski, M **ong, G Kountouris… - arxiv preprint arxiv …, 2025 - arxiv.org
We demonstrate strong light-matter interaction of a dielectric nanocavity with deep sub-
wavelength confinement of light and excitons in a monolayer of molybdenum ditelluride …
wavelength confinement of light and excitons in a monolayer of molybdenum ditelluride …
Fourier-Tailored Light-Matter Coupling in van der Waals Heterostructures
Dielectric structures can support low-absorption optical modes, which are attractive for
engineering light-matter interactions with excitonic resonances in two-dimensional (2D) …
engineering light-matter interactions with excitonic resonances in two-dimensional (2D) …