217 citations · 1.2k across the 47 of their papers we have counts for
35 papers · 1 filter
Attosecond delay metrology beyond the photon coherence time with spectrally resolved Hong-Ou-Mandel interferometry
Yingwen Zhang, Kyle Jordan, Duncan England +3
Hong-Ou-Mandel (HOM) interferometry enables delay estimation at the quantum precision limit but is traditionally constrained to path differences within the coherence time of the in…
Single-acquisition tomography of photonic qubits with structured media
Francesco Di Colandrea, Yingwen Zhang, John Grace +3
Quantum state tomography is an essential tool for characterizing quantum systems and underpins nearly every experimental realization of quantum technologies. Conventional tomograph…
Single-Image Entanglement Verification with Spatially Encoded Measurement Contexts
Nazanin Dehghan, Alessio D'Errico, Yingwen Zhang +3
Entangled photon pairs produced by spontaneous parametric down-conversion exhibit rich spatial entanglement structure that is often difficult to probe with conventional measurement…
Contrast enhanced imaging through weakly scattering media with spatially entangled photons
Alessio D'Errico, James Hubble, Rojan Abolhassani +4
Improving the image contrast of objects immersed in weakly scattering media can be achieved using various strategies. One common approach is to reject events associated with scatte…
Simultaneous amplitude and phase spectroscopy using two-photon interference
Kyle M. Jordan, Yingwen Zhang, Frédéric Bouchard +5
Quantum spectroscopy seeks to probe chemical systems using nonclassical light, which has properties that are qualitatively and quantitatively different than conventional light sour…
Quantum Optical Techniques for Biomedical Imaging
Vahid Salari, Yingwen Zhang, Sepideh Ahmadi +7
Quantum imaging is emerging as a transformative approach for biomedical applications, applying nonclassical properties of light, such as entanglement, squeezing, and quantum correl…
Spatial Mode Encoding for Quantum Key Distribution: From Hundreds to Thousands of Modes
Lukas Scarfe, Yingwen Zhang, Ebrahim Karimi
Here, we present a proof-of-principle high-dimensional quantum key distribution (QKD) protocol utilizing the position and momentum entanglement of photon pairs. The protocol exploi…
Full-field mapping of spatially varying polarization entanglement generated from spontaneous parametric down-conversion
Cheng Li, Girish Kulkarni, Isaac Soward +6
Two-photon states generated from spontaneous parametric down-conversion (SPDC) can display entanglement in all degrees of freedom (DoFs) of light, including spatial, temporal, and…
Quantum enhanced beam tracking surpassing the Heisenberg uncertainty limit
Yingwen Zhang, Duncan England, Noah Lupu-Gladstein +5
Determining a beam's full trajectory requires tracking both its position and momentum (angular) information. However, the product of position and momentum uncertainty in a simultan…
Generation of the Complete Bell Basis via Hong-Ou-Mandel Interference
Xiaoqin Gao, Dilip Paneru, Francesco Di Colandrea +2
Optical vector modes (VMs), characterized by spatially varying polarization distributions, have become essential tools across microscopy, metrology, optical trapping, nanophotonics…
Diffraction of correlated biphotons through transparent samples
Nazanin Dehghan, Alessio D'Errico, Yingwen Zhang +2
Two-photon states generated through degenerate spontaneous parametric down-conversion (SPDC) can exhibit sharp correlations in the transverse spatial coordinates. This property lea…
Quantitative phase gradient microscopy with spatially entangled photons
Yingwen Zhang, Paul-Antoine Moreau, Duncan England +2
We present an entanglement-based quantitative phase gradient microscopy technique that employs principles from quantum ghost imaging and ghost diffraction. In this method, a transp…
Full spatial characterization of entangled structured photons
Xiaoqin Gao, Yingwen Zhang, Alessio D'Errico +3
Vector beams (VBs) are fully polarized beams with spatially varying polarization distributions, and they have found widespread use in numerous applications such as microscopy, metr…
Intensity interferometry for holography with quantum and classical light
G. S. Thekkadath, D. England, F. Bouchard +3
As first demonstrated by Hanbury Brown and Twiss, it is possible to observe interference between independent light sources by measuring correlations in their intensities rather tha…
Reconfigurable phase contrast microscopy with correlated photon pairs
Hazel Hodgson, Yingwen Zhang, Duncan England +1
A phase-sensitive microscopy technique is proposed and demonstrated that employs the momentum correlations inherent in spontaneous parametric down-conversion. One photon from a cor…
Quantum correlation light-field microscope with extreme depth of field
Yingwen Zhang, Duncan England, Antony Orth +2
Light-field microscopy (LFM) is a 3D microscopy technique whereby volumetric information of a sample is gained by simultaneously capturing both the position and momentum (angular)…
Characterisation of a single photon event camera for quantum imaging
Victor Vidyapin, Yingwen Zhang, Duncan England +1
We show a simple yet effective method that can be used to characterize the per pixel quantum efficiency and temporal resolution of a single photon event camera for quantum imaging…
Observation of Nonclassical Photon Statistics in Single-Bubble Sonoluminescence
Mohammadreza Rezaee, Yingwen Zhang, James L. Harden +1
A cavitation bubble inside a liquid, under a specific set of conditions, can get trapped in an antinode of the ultrasonically driven standing wave and periodically emits visible ph…
Manipulating the symmetry of transverse momentum entangled biphoton states
Xiaoqin Gao, Yingwen Zhang, Alessio D'Errico +3
Bell states are a fundamental resource in photonic quantum information processing. These states have been generated successfully in many photonic degrees of freedom. Their manipula…
Ray-tracing with quantum correlated photons to image a 3D scene
Yingwen Zhang, Antony Orth, Duncan England +1
To capture the 3D information of a scene, conventional techniques often require multiple 2D images of the scene to be captured from different perspectives. In this work we demonstr…
High-speed imaging of spatiotemporal correlations in Hong-Ou-Mandel interference
Xiaoqin Gao, Yingwen Zhang, Alessio D'Errico +2
The Hong-Ou-Mandel interference effect lies at the heart of many emerging quantum technologies whose performance can be significantly enhanced with increasing numbers of entangled…
Experimental tests of Multiplicative Bell Inequalities
Dilip Paneru, Amit Te'eni, Bar Y. Peled +5
Bell inequalities are mathematical constructs that demarcate the boundary between quantum and classical physics. A new class of multiplicative Bell inequalities originating from a…
Two-photon interference: the Hong-Ou-Mandel effect
FrédÉric Bouchard, Alicia Sit, Yingwen Zhang +5
Nearly 30 years ago, two-photon interference was observed, marking the beginning of a new quantum era. Indeed, two-photon interference has no classical analogue, giving it a distin…
Multivariate Discrimination in Quantum Target Detection
Peter Svihra, Yingwen Zhang, Paul Hockett +4
We describe a simple multivariate technique of likelihood ratios for improved discrimination of signal and background in multi-dimensional quantum target detection. The technique c…