Publications de Ewold Verhagen

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We demonstrate parallel transduction of thermally driven mechanical motion of an array of gold-coated silicon nitride nanomechanical beams, by using near-field confinement in plasmonic metal-insulator metal resonators supported in the gap between the gold ...

Cavity optomechanics(1) is a new research field that has seen spectacular advances in recent years. Optomechanics combines advances in nano-and electromechanical systems with radiation pressure enabled control. The radiation pressure backaction enables to ...

Optical laser fields have been widely used to achieve quantum control over the motional and internal degrees of freedom of atoms and ions(1,2), molecules and atomic gases. A route to controlling the quantum states of macroscopic mechanical oscillators in a ...

Coherent upconversion of terahertz and mid-infrared signals into visible light opens new horizons for spectroscopy, imaging, and sensing but represents a challenge for conventional nonlinear optics. Here, we used a plasmonic nanocavity hosting a few hundre ...

We identify a route towards achieving a negative index of refraction at optical frequencies based on coupling between plasmonic waveguides that support backwards waves. We show how modal symmetry can be exploited in metal-dielectric waveguide pairs to achi ...

We show that surface plasmon polaritons (SPPs) can be concentrated to subwavelength dimensions in a nanoscale dielectric wedge on a metal substrate. An adiabatic model explains how SPPs propagating on a Ag substrate covered with a thin Si film of slowly in ...

We demonstrate plasmon-mechanical coupling in a metalized nanomechanical oscillator. A coupled surface plasmon is excited in the 25 nm wide gap between two metalized silicon nitride beams. The strong plasmonic dispersion allows the nanomechanical beams the ...

Nanomechanical resonators are highly suitable as sensors of minute forces, displacements, or masses. We realize a single plasmonic dither antenna of subwavelength size, integrated with silicon nitride nanobeams. The sensitive dependence of the antenna resp ...

We demonstrate an optomechanical microresonator in which optical and mechanical degrees of freedom exchange energy at a rate exceeding the relevant decoherence rates in the system, enabling quantum control of a mechanical oscillator with light. ...

Ewold Verhagen

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Parallel Transduction of Nanomechanical Motion Using Plasmonic Resonators

Cavity Quantum Optomechanics: Coupling Light And Micromechanical Oscillators

Quantum-coherent coupling of a mechanical oscillator to an optical cavity mode

Continuous-wave frequency upconversion with a molecular optomechanical nanocavity

Three-Dimensional Negative Index of Refraction at Optical Frequencies by Coupling Plasmonic Waveguides

Plasmonic Nanofocusing in a Dielectric Wedge

Plasmon Nanomechanical Coupling for Nanoscale Transduction

Plasmomechanical Resonators Based on Dimer Nanoantennas

Quantum-Coherent Coupling of a Mechanical Oscillator to an Optical Cavity Mode