Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Stoklasa, B."'
Autor:
Peterek, M., Paur, M., Vitek, M., Koutny, D., Stoklasa, B., Motka, L., Hradil, Z., Rehacek, J., Sanchez-Soto, L. L.
Enhancing the ability to resolve axial details is crucial in three-dimensional optical imaging. We provide experimental evidence showcasing the ultimate precision achievable in axial localization using vortex beams. For Laguerre-Gauss (LG) beams, thi
Externí odkaz:
http://arxiv.org/abs/2310.19908
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, provided the camera is placed at one of two optimal transverse detection pl
Externí odkaz:
http://arxiv.org/abs/1910.04986
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 with decreasing separation, an effect termed Rayleigh's curse. Contrary
Externí odkaz:
http://arxiv.org/abs/1809.00633
Publikováno v:
Phys. Rev. A 96, 062107 (2017)
We establish the multiparameter quantum Cram\'er-Rao bound for simultaneously estimating the centroid, the separation, and the relative intensities of two incoherent optical point sources using alinear imaging system. For equally bright sources, the
Externí odkaz:
http://arxiv.org/abs/1709.07705
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 resulting Cram\'er-Rao bound gives the lowest variance achievable for an unbia
Externí odkaz:
http://arxiv.org/abs/1607.05837
Autor:
Harder, G., Silberhorn, Ch., Rehacek, J., Hradil, Z., Motka, L., Stoklasa, B., Sanchez-Soto, L. L.
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 loss-tolerant time-multiplexed detector based on a fiber-optical setu
Externí odkaz:
http://arxiv.org/abs/1603.06938
Optical beams with topological singularities have a Schmidt decomposition. Hence, they display features typically associated with bipartite quantum systems; in particular, these classical beams can exhibit entanglement. This classical entanglement ca
Externí odkaz:
http://arxiv.org/abs/1505.06103
Autor:
Motka, L., Stoklasa, B., Rehacek, J., Hradil, Z., Karasek, V., Mogilevtsev, D., Harder, G., Silberhorn, C., Sanchez-Soto, L. L.
Publikováno v:
Phys. Rev. A 89, 054102 (2014)
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}, 010402 (2010)], where the quantum state of a system is reconstructed wit
Externí odkaz:
http://arxiv.org/abs/1407.0959
Autor:
Harder, G., Silberhorn, C., Rehacek, J., Hradil, Z., Motka, L., Stoklasa, B., Sanchez-Soto, L. L.
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 telecom wavelengths, with almost perfect photon-number correlations. We
Externí odkaz:
http://arxiv.org/abs/1406.3590
Publikováno v:
Nat. Commun. 5:3275 (2014)
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 dynamical range and high optical efficiency, the Shack-Hartmann is nowadays th
Externí odkaz:
http://arxiv.org/abs/1402.3192