All-optical control of the quantum flow of a polariton condensate

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Excitons play an essential role in the optical response of two-dimensional materials. These are bound states showing up in the band gaps of many-body systems and are conceived as quasiparticles formed by an electron and a hole. By performing real-time simu ...

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Quantum optics studies how photons interact with other forms of matter, the understanding of which was crucial for the development of quantum mechanics as a whole. Starting from the photoelectric effect, the quantum property of light has led to the develop ...

The interaction of light and matter enables nonlinear frequency conversion and the creation of coherent currents. The optical control of electric currents is of fundamental relevance and prominent research focus in the last decades. These photocurrents ena ...

In this thesis, we discuss the problems of scattering and optical manipulation related to nanosystems of different complexities. The multipolar decomposition method is used to represent scattering processes in nanosystems as a series of elementary excitati ...

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The Large Charge sector of Conformal Field Theory (CFT) can generically be described through a semiclassical expansion around a superfluid background. In this work, focussing on U(1) invariant Wilson-Fisher fixed points, we study the spectrum of spinning l ...

We present the first direct search for exotic Higgs boson decays H -> AA, A -> gamma gamma in events with two photonlike objects. The hypothetical particle A is a low-mass spin-0 particle decaying promptly to a merged diphoton reconstructed as a single pho ...

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This thesis reports on the realization of the first experiments conducted with superfluid, strongly interacting Fermi gases of 6Li coupled to the light field of an optical cavity. In the scope of existing ultracold atomic platforms, this is the first time ...

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Second-harmonic generation allows for coherently bridging distant regions of the optical spectrum, with applications ranging from laser technology to self-referencing of frequency combs. However, accessing the nonlinear response of a medium typically requi ...

The intrinsic random amplitude and phase modulation of 40 distinct lines of a microresonator frequency comb operated in the modulation instability regime are used to realize massively parallel random-modulation continuous-wave light detection and ranging, ...

Semiconductor nanocrystals feature multiply-excited states that display intriguing physics and significantly impact nanocrystal-based technologies. Fluorescence supplies a natural probe to investigate these states. Still, direct observation of multiexciton ...

All-optical control of the quantum flow of a polariton condensate

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Exciton migration in two-dimensional materials

3D diffractive optics for linear interconnects and nonlinear processing

A Cavity-Microscope for Quantum Simulations with Locally-Controllable All-to-All Interactions

Ghost imaging using two SPAD array detectors: a parameter study towards the realization of a 3D quantum microscope

Room-Temperature Quantum Optomechanics and Free-Electron Quantum Optics

Photoinduced Second-Order Nonlinearities in Centrosymmetric Media

Frequency and time domains interactions in nanophotonics

Domain Imaging and Switching Dynamics in BaTiO3-Based Photonic Integrated Devices

Identifying Large Charge operators

Search for Exotic Higgs Boson Decays H → AA → 4γ with Events Containing Two Merged Diphotons in Proton-Proton Collisions at Vs=13 TeV

Single-particle inductively-coupled plasma mass spectrometry particle sizing and counting method, system, computer program and computer-readable data carrier

Hilbert series, the Higgs mechanism, and HEFT

Many-body physics with strongly interacting fermions coupled to light

Confined spin waves in magnetochiral nanotubes with axial and circumferential magnetization

Optical manipulation of plasmonic nanoparticles: Applications in surface chemistry and nano-optics

Search for Heavy Neutral Leptons with LHCb

Ultrafast control of emergent quantum matter probed by electron microscopy

A chip-scale second-harmonic source via self-injection-locked all-optical poling

Chaotic microcomb-based parallel ranging

Heralded Spectroscopy: a new single-particle probe for nanocrystal photophysics