171 citations · 597 across the 20 of their papers we have counts for
15 papers · 1 filter
Sampling the spatial coherence of light
M. Vitek, M. Peterek, D. Koutny +6
We introduce a novel application of the Hartmann sensor, traditionally designed for wavefront sensing, to measure the coherence properties of optical signals. By drawing an analogy…
Towards quantum 3D imaging devices: the Qu3D project
Cristoforo Abbattista, Leonardo Amoruso, Samuel Burri +23
We review the advancement of the research toward the design and implementation of quantum plenoptic cameras, radically novel 3D imaging devices that exploit both momentum-position…
Intensity-Based Axial Localization at the Quantum Limit
J. Rehacek, M. Paur, B. Stoklasa +3
We derive fundamental precision bounds for single-point axial localization. For the case of a Gaussian beam, this ultimate limit can be achieved with a single intensity scan, provi…
Tempering Rayleigh's curse with PSF shaping
M. Paur, B. Stoklasa, J. Grover +4
It has been argued that, for a spatially invariant imaging system, the information one can gain about the separation of two incoherent point sources decays quadratically to zero wi…
Quantum-limited time-frequency estimation through mode-selective photon measurement
John M. Donohue, Vahid Ansari, Jaroslav Řeháček +5
By projecting onto complex optical mode profiles, it is possible to estimate arbitrarily small separations between objects with quantum-limited precision, free of uncertainty arisi…
Multiparameter Quantum Metrology of Incoherent Point Sources: Towards Realistic Superresolution
J. Rehacek, Z. Hradil, B. Stoklasa +4
We establish the multiparameter quantum Cramér-Rao bound for simultaneously estimating the centroid, the separation, and the relative intensities of two incoherent optical point so…
Dispelling Rayleigh's Curse
J. Rehacek, M. Paur, B. Stoklasa +3
We devise a systematic method to determine the Fisher information required for resolving two incoherent point sources with a diffraction-limited linear imaging device. The resultin…
Achieving quantum-limited optical resolution
Martin Paur, Bohumil Stoklasa, Zdenek Hradil +2
We establish a simple method to assess the quantum Fisher information required for resolving two incoherent point sources with an imaging system. The resulting Cramér-Rao bound sho…
Local sampling of the Wigner function at telecom wavelength with loss-tolerant detection of photon statistics
G. Harder, Ch. Silberhorn, J. Rehacek +4
We report the experimental point-by-point sampling of the Wigner function for nonclassical states created in an ultrafast pulsed type-II parametric down-conversion source. We use a…
Experimental violation of a Bell-like inequality with optical vortex beams
B. Stoklasa, L. Motka, J. Rehacek +3
Optical beams with topological singularities have a Schmidt decomposition. Hence, they display features typically associated with bipartite quantum systems; in particular, these cl…
Efficient algorithm for optimizing data pattern tomography
L. Motka, B. Stoklasa, J. Rehacek +6
We give a detailed account of an efficient search algorithm for the data pattern tomography proposed by J. Rehacek, D. Mogilevtsev, and Z. Hradil [Phys. Rev. Lett.~\textbf{105}, 01…
Time-Multiplexed Measurements of Nonclassical Light at Telecom Wavelengths
G. Harder, C. Silberhorn, J. Rehacek +4
We report the experimental reconstruction of the statistical properties of an ultrafast pulsed type-II parametric down conversion source in a periodically poled KTP waveguide at te…
Wavefront sensing reveals optical coherence
B. Stoklasa, L. Motka, J. Rehacek +2
Wavefront sensing is a set of techniques providing efficient means to ascertain the shape of an optical wavefront or its deviation from an ideal reference. Due to its wide dynamica…
Quantum polarization tomography of bright squeezed light
C. R. Muller, B. Stoklasa, C. Gabriel +7
We reconstruct the polarization sector of a bright polarization squeezed beam starting from a complete set of Stokes measurements. Given the symmetry that underlies the polarizatio…
Incomplete quantum state estimation: a comprehensive study
Yong Siah Teo, Bohumil Stoklasa, Berthold-Georg Englert +2
We present a detailed account of quantum state estimation by joint maximization of the likelihood and the entropy. After establishing the algorithms for both perfect and imperfect…