155 citations · 876 across the 24 of their papers we have counts for
25 papers
Phase estimation in spontaneous nonlinear interferometry for enhanced quantum imaging
Jonas L. Moos, Cristofero Oglialoro, Enno Giese +1
Bicolor quantum imaging can reach, in principle, phase supersensitivity approaching the Heisenberg limit using squeezed light from high-gain parametric down-conversion, but establi…
Quantum scanning synthetic optical holography
Josué R. León-Torres, Byron Caiza, Nadia Baumann +7
Synthetic optical holography (SOH) introduced holographic reconstruction into scanning optical microscopy, enabling quantitative phase imaging with sequential acquisition and point…
Below-shot-noise capacity in phase estimation using nonlinear interferometers
Cristofero Oglialoro, Gerard J. Machado, Felix Farsch +7
Over the past decade, several schemes for imaging and sensing based on nonlinear interferometers have been proposed and demonstrated experimentally. These interferometers exhibit t…
Advances in Position-Momentum Entanglement: A Versatile Tool for Quantum Technologies
Satyajeet Patil, Sebastian Töpfer, Rajshree Swarnkar +4
Position-momentum entanglement is a versatile high-dimensional resource in quantum optics. From fundamental tests of reality to applications in quantum technologies, spatial entang…
Enhancing entangled two-photon absorption of Nile Red via temperature-controlled SPDC
Aleksa Krstić, Tobias Bernd Gäbler, Nitish Jain +6
Entangled two-photon absorption can enable a linear scaling of fluorescence emission with the excitation power. In comparison to classical two-photon absorption with a quadratic sc…
Polarization-entangled photon pair source using beam displacers and thin crystals
Minjae Hong, Rodrigo Gomez, Valerio Flavio Gili +2
We present an experimental implementation of a polarization-entangled photon pair source based on beam displacers. The down-converted photons are emitted via spontaneous parametric…
Off-axis holographic imaging with undetected light
Josué R. León-Torres, Filip Krajinić, Mohit Kumar +5
Quantum imaging with undetected light (QIUL) can retrieve amplitude and phase information of an object by exploiting the quantum correlations of photon-pairs generated through spon…
Quantum Imaging Beyond the Standard-Quantum Limit and Phase Distillation
Simon Schaffrath, Daniel Derr, Markus Gräfe +1
Quantum sensing using non-linear interferometers offers the possibility of bicolour imaging, using light that never interacted with the object of interest, and provides a way to ac…
Photon Pair Source based on PPLN-Waveguides for Entangled Two-Photon Absorption
Tobias Bernd Gäbler, Patrick Hendra, Nitish Jain +1
Fluorescence excitation by absorption of entangled photon pairs offers benefits compared to classical imaging techniques, such as the attainment of higher signal levels at low exci…
Experimental quantum imaging distillation with undetected light
Jorge Fuenzalida, Marta Gilaberte Basset, Sebastian Töpfer +2
Imaging based on the induced coherence effect makes use of photon pairs to obtain information of an object without detecting the light that probes it. While one photon illuminates…
Spectral Properties of Transverse Laguerre-Gauss Modes in Parametric Down-Conversion
Carlos Sevilla-Gutiérrez, Varun Raj Kaipalath, Baghdasar Baghdasaryan +3
The first color photos of the parametric down-conversion (PDC) emission cone illustrate the correlation of longitudinal- and transverse momentum in the process, i.e., wavelength-de…
Ultrabright Polarization-Entangled Photon Pair Source for Frequency-Multiplexed Quantum Communication in Free-Space
Emma Brambila, Rodrigo Gómez, Riza Fazili +2
The distribution of entanglement via satellite links will drastically extend the reach of quantum networks. Highly efficient entangled photon sources are an essential requirement t…
Quantum holography with undetected light
Sebastian Töpfer, Marta Gilaberte Basset, Jorge Fuenzalida +3
Holography exploits the interference of light fields to obtain a systematic reconstruction of the light fields wavefronts. Classical holography techniques have been very successful…
Possible link between the distribution of atomic spectral lines and the radiation-matter-equilibrium in the early universe
Tim Richardt, Matthias Heinrich, Markus Gräfe +1
We report on the uncanny resemblance of the global distribution of all experimentally known atomic spectral lines to the Planckian spectral distribution associated with black body…
Endurance of quantum coherence due to particle indistinguishability in noisy quantum networks
Armando Perez-Leija, Diego Guzmán-Silva, Roberto de J. León-Montiel +5
Quantum coherence, the physical property underlying fundamental phenomena such as multi-particle interference and entanglement, has emerged as a valuable resource upon which modern…
Integrated-optics heralded controlled-NOT gate for polarization-encoded qubits
Jonas Zeuner, Aditya N. Sharma, Max Tillmann +5
Recent progress in integrated-optics technology has made photonics a promising platform for quantum networks and quantum computation protocols. Integrated optical circuits are char…
Tapering of fs Laser-written Waveguides
René Heilmann, Chiara Greganti, Markus Gräfe +3
The vast development of integrated quantum photonic technology enables the implementation of compact and stable interferometric networks. In particular laser-written waveguide stru…
Scalable on-chip quantum state tomography
James Titchener, Markus Gräfe, René Heilmann +3
Quantum information systems are on a path to vastly exceed the complexity of any classical device. The number of entangled qubits in quantum devices is rapidly increasing and the i…
Advanced-Retarded Differential Equations in Quantum Photonic Systems
Unai Alvarez-Rodriguez, Armando Perez-Leija, Iñigo L. Egusquiza +5
We propose the realization of photonic circuits whose dynamics is governed by advanced-retarded differential equations. Beyond their mathematical interest, these photonic configura…
Direct measurement of second-order coupling in a waveguide lattice
Robert Keil, Benedikt Pressl, René Heilmann +3
We measure the next-nearest-neighbour coupling in an array of coupled optical waveguides directly via an integrated eigenmode interferometer. In contrast to light propagation exper…
Demonstration of local teleportation using classical entanglement
Diego Guzman-Silva, Robert Brüning, Felix Zimmermann +8
Teleportation is the most widely discussed application of the basic principles of quantum mechanics. Fundamentally, this process describes the transmission of information, which in…
Implementation of Quantum and Classical Discrete Fractional Fourier Transforms
Steffen Weimann, Armando Perez-Leija, Maxime Lebugle +9
Fourier transforms are ubiquitous mathematical tools in basic and applied sciences. We here report classical and quantum optical realizations of the discrete fractional Fourier tra…
Enhancing quantum transport in a photonic network using controllable decoherence
Devon N. Biggerstaff, René Heilmann, Aidan A. Zecevik +7
Transport phenomena on a quantum scale appear in a variety of systems, ranging from photosynthetic complexes to engineered quantum devices. It has been predicted that the efficienc…
Radially Self-Accelerating Beams
Christian Vetter, Toni Eichelkraut, Marco Ornigotti +2
We report on optical non-paraxial beams that exhibit a self-accelerating behavior in radial direction. Our theory shows that those beams are solutions to the full scalar Helmholtz…