338 citations · 1.4k across the 20 of their papers we have counts for
20 papers
Measuring deviations from a perfectly circular cross-section of an optical nanofiber at the Ångström scale
Jihao Jia, Felix Tebbenjohanns, Thomas Hoinkes +3
Tapered optical fibers (TOFs) with sub-wavelength-diameter waists, known as optical nanofibers, are powerful tools for interfacing quantum emitters and nanophotonics. These applica…
Emergence of second-order coherence in superfluorescence
Constanze Bach, Felix Tebbenjohanns, Christian Liedl +2
We experimentally investigate the second-order quantum coherence function of a superradiant burst in a cascaded quantum system. We chirally (i.e. direction-dependently) couple roug…
Predicting correlations in superradiant emission from a cascaded quantum system
Felix Tebbenjohanns, Christopher D. Mink, Constanze Bach +2
In recent experiments, a novel type of cascaded quantum system has been realized using nanofiber-coupled cold atomic ensembles. This setup has enabled the study of superradiant dec…
Feedback-cooling the fundamental torsional mechanical mode of a tapered optical fiber to 30 mK
Felix Tebbenjohanns, Jihao Jia, Michael Antesberger +5
Tapered optical fibers (TOFs) are used in many areas of physics and optical technologies ranging from coupling light into nanophotonic components to optical sensing and amplificati…
Observation of superradiant bursts in a cascaded quantum system
Christian Liedl, Felix Tebbenjohanns, Constanze Bach +3
Dicke superradiance describes the collective radiative decay of a fully inverted ensemble of two-level atoms. We experimentally investigate this effect for a chiral, i.e.,~directio…
Encoding information in the mutual coherence of spatially separated light beams
Alfonso Nardi, Shawn Divitt, Massimiliano Rossi +4
Coherence has been used as a resource for optical communications since its earliest days. It is widely used for multiplexing of data, but not for encoding of data. Here we introduc…
Collective excitation and decay of waveguide-coupled atoms: from timed Dicke states to inverted ensembles
Christian Liedl, Sebastian Pucher, Felix Tebbenjohanns +2
The collective absorption and emission of light by an ensemble of atoms is at the heart of many fundamental quantum optical effects and the basis for numerous applications. However…
Ponderomotive squeezing of light by a levitated nanoparticle in free space
Andrei Militaru, Massimiliano Rossi, Felix Tebbenjohanns +3
A mechanically compliant element can be set into motion by the interaction with light. In turn, this light-driven motion can give rise to ponderomotive correlations in the electrom…
Controlling spatial coherence with an optical complex medium
Alfonso Nardi, Felix Tebbenjohanns, Massimiliano Rossi +5
Control over optical spatial coherence is a key requirement in diverse applications including imaging, optical trapping, and communications. Current approaches to controlling spati…
Optimal orientation detection of an anisotropic dipolar scatterer
Felix Tebbenjohanns, Andrei Militaru, Andreas Norrman +3
The angular orientation of an anisotropic scatterer with cylindrical symmetry in a linearly polarized light field represents an optomechanical librator. Here, we propose and theore…
Quantum control of a nanoparticle optically levitated in cryogenic free space
Felix Tebbenjohanns, M. Luisa Mattana, Massimiliano Rossi +2
Tests of quantum mechanics on a macroscopic scale require extreme control over mechanical motion and its decoherence. Quantum control of mechanical motion has been achieved by engi…
Observation of radiation torque shot noise on an optically levitated nanodumbbell
Fons van der Laan, René Reimann, Felix Tebbenjohanns +3
According to quantum theory, measurement and backaction are inextricably linked. In optical position measurements, this backaction is known as radiation pressure shot noise. In ana…
Escape dynamics of active particles in multistable potentials
Andrei Militaru, Max Innerbichler, Martin Frimmer +3
Rare transitions between long-lived metastable states underlie a great variety of physical, chemical and biological processes. Our quantitative understanding of reactive mechanisms…
Optically levitated rotor at its thermal limit of frequency stability
Fons van der Laan, René Reimann, Andrei Militaru +4
Optically levitated rotors are prime candidates for torque sensors whose precision is limited by the fluctuationsof the rotation frequency. In this work we investigate an optically…
Motional Sideband Asymmetry of a Nanoparticle Optically Levitated in Free Space
Felix Tebbenjohanns, Martin Frimmer, Vijay Jain +2
The hallmark of quantum physics is Planck's constant , whose finite value entails the quantization that gave the theory its name. The finite value of gives rise to inevitabl…
Optimal Position Detection of a Dipolar Scatterer in a Focused Field
Felix Tebbenjohanns, Martin Frimmer, Lukas Novotny
We theoretically analyze the problem of detecting the position of a classical dipolar scatterer in a strongly focused optical field. We suggest an optimal measurement scheme and sh…
Rapid flipping of parametric phase states
Martin Frimmer, Toni L. Heugel, Žiga Nosan +8
Since the invention of the solid-state transistor, the overwhelming majority of computers followed the von Neumann architecture that strictly separates logic operations and memory.…
Cold Damping of an Optically Levitated Nanoparticle to micro-Kelvin Temperatures
Felix Tebbenjohanns, Martin Frimmer, Andrei Militaru +2
We implement a cold damping scheme to cool one mode of the center-of-mass motion of an optically levitated nanoparticle in ultrahigh vacuum from room temperature to a record-low te…
Optical potential mapping with a levitated nanoparticle at sub-wavelength distances from a membrane
Rozenn Diehl, Erik Hebestreit, René Reimann +3
The controllable positioning of a vacuum-levitated object near a material surface is of importance for studying short-range forces, such as Casimir forces, interfacial friction for…
GHz Rotation of an Optically Trapped Nanoparticle in Vacuum
René Reimann, Michael Doderer, Erik Hebestreit +5
We report on rotating an optically trapped silica nanoparticle in vacuum by transferring spin angular momentum of light to the particle's mechanical angular momentum. At sufficient…