23 citations · 29 across the 8 of their papers we have counts for
9 papers
Resolved Anderson localization of light in dense three-dimensional dielectric disorder
Yevgen Grynko, Jens Förstner
Strong localization of light in 3D dielectric disorder is challenging to establish because localized contributions can be hidden by diffusive leakage and finite-sample loss. We per…
Gain-induced spectral non-degeneracy in type-II parametric down-conversion
Behnood Taheri, Denis Kopylov, Manfred Hammer +3
We demonstrate the novel effect of gain-induced spectral shifts in the type-II parametric down-conversion (PDC) process, which results in a transition from degenerate to non-degene…
3D Anderson localization of light in disordered systems of dielectric particles
Yevgen Grynko, Dustin Siebert, Jan Sperling +1
We investigate light transport in three-dimensional disordered media composed of irregular dielectric particles using large scale full-wave simulations. For subwavelength particles…
Increasing the Field-of-View Radiation Efficiency of Optical Phased Antenna Arrays
Henna Farheen, Andreas Strauch, J. Christoph Scheytt +2
Silicon photonics in conjunction with complementary metal-oxide-semiconductor (CMOS) fabrication has greatly enhanced the development of integrated optical phased arrays. This faci…
Efficient nonlinear wavefront shaping by dielectric metasurfaces
David Hähnel, Jens Förstner, Viktor Myroshnychenko
Dielectric metasurfaces provide a unique platform for efficient harmonic generation and optical wavefront manipulation at the nanoscale. Tailoring phase and amplitude of a nonlinea…
Optimization of optical waveguide antennas for directive emission of light
Henna Farheen, Till Leuteritz, Stefan Linden +2
Optical travelling wave antennas offer unique opportunities to control and selectively guide light into a specific direction which renders them as excellent candidates for optical…
Full resonant transmission of semi-guided planar waves through slab waveguide steps at oblique incidence
Manfred Hammer, Andre Hildebrandt, Jens Förstner
Sheets of slab waveguides with sharp corners are investigated. By means of rigorous numerical experiments, we look at oblique incidence of semi-guided plane waves. Radiation losses…
Indirect spin dephasing via charge state decoherence in optical control schemes in quantum dots
A. Grodecka, P. Machnikowski, J. Förstner
We demonstrate that an optically driven spin of a carrier in a quantum dot undergoes indirect dephasing via conditional optically induced charge evolution even in the absence of an…
Theoretical study of phonon-assisted singlet-singlet relaxation in two-electron semiconductor quantum dot molecules
A. Grodecka, P. Machnikowski, J. Förstner
Phonon-assisted singlet-singlet relaxation in semiconductor quantum dot molecules is studied theoretically. Laterally coupled quantum dot structures doped with two electrons are co…