Yonatan Israel
Weizmann Institute of Science
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Featured researches published by Yonatan Israel.
Physical Review A | 2012
Yonatan Israel; Itai Afek; Shamir Rosen; Yaron Silberberg
We have performed experimental quantum state tomography of NOON states with up to four photons. The measured states are generated by mixing a classical coherent state with spontaneous parametric down-conversion. We show that this method produces states which exhibit a high fidelity with ideal NOON states. The fidelity is limited by the overlap of the two-photon down-conversion state with any two photons originating from the coherent state, for which we introduce and measure a figure of merit. A second limitation on the fidelity set by the total setup transmission is discussed. We also apply the same tomography procedure for characterizing correlated photon hole states.
Nature Communications | 2017
Yonatan Israel; Ron Tenne; Dan Oron; Yaron Silberberg
Despite advances in low-light-level detection, single-photon methods such as photon correlation have rarely been used in the context of imaging. The few demonstrations, for example of subdiffraction-limited imaging utilizing quantum statistics of photons, have remained in the realm of proof-of-principle demonstrations. This is primarily due to a combination of low values of fill factors, quantum efficiencies, frame rates and signal-to-noise characteristic of most available single-photon sensitive imaging detectors. Here we describe an imaging device based on a fibre bundle coupled to single-photon avalanche detectors that combines a large fill factor, a high quantum efficiency, a low noise and scalable architecture. Our device enables localization-based super-resolution microscopy in a non-sparse non-stationary scene, utilizing information on the number of active emitters, as gathered from non-classical photon statistics.
arXiv: Quantum Physics | 2016
Liat Liberman; Yonatan Israel; Eilon Poem; Yaron Silberberg
The retrieval of phases from intensity measurements is a key process in many fields in science, from optical microscopy to x-ray crystallography. Here we study phase retrieval of a one-dimensional multi-phase object that is illuminated by quantum states of light. We generalize the iterative Gerchberg-Saxton algorithm to photon correlation measurements on the output plane, rather than the standard intensity measurements. We report a numerical comparison of classical and quantum phase retrieval of a small one-dimensional object of discrete phases from its far-field diffraction. While the classical algorithm was ambiguous and often converged to wrong solutions, quantum light produced a unique reconstruction with smaller errors and faster convergence. We attribute these improvements to a larger Hilbert space that constrains the algorithm.
Physical Review Letters | 2012
Shamir Rosen; Itai Afek; Yonatan Israel; Yaron Silberberg
Quantum lithography achieves phase superresolution using fragile, experimentally challenging entangled states of light. We propose a scalable scheme for creating features narrower than classically achievable with reduced use of quantum resources and, consequently, enhanced resistance to loss. The scheme is an implementation of interferometric lithography using a mixture of a spontaneous parametric down-converted entangled state with intense classical coherent light. We measure coincidences of up to four photons mimicking multiphoton absorption. The results show a narrowing of the interference fringes of up to 30% with respect to the best analogous classical scheme using only 10% of the nonclassical light required for creating NOON states.
Proceedings of SPIE | 2017
Dan Oron; Ron Tenne; Yonatan Israel; Yaron Silberberg
Far-field optical microscopy beyond the Abbe diffraction limit, making use of nonlinear excitation (e.g. STED), or temporal fluctuations in fluorescence (PALM, STORM, SOFI) is already a reality. In contrast, overcoming the diffraction limit using non-classical properties of light is very difficult to achieve due to the fragility of quantum states of light. Here, we experimentally demonstrate superresolution microscopy based on quantum properties of light naturally emitted by fluorophores used as markers in fluorescence microscopy. Our approach is based on photon antibunching, the tendency of fluorophores to emit photons one by one rather than in bursts. Although a distinctively quantum phenomenon, antibunching is readily observed in most common fluorophores even at room temperature. This nonclassical resource can be utilized directly to enhance the imaging resolution, since the non-classical far-field intensity correlations induced by antibunching carry high spatial frequency information on the spatial distribution of emitters. Detecting photon statistics simultaneously in the entire field of view, we were able to detect non-classical correlations of the second and third order, and reconstructed images with resolution significantly beyond the diffraction limit. Alternatively, we demonstrate the utilization of antibunching for augmenting the capabilities of localization-based superresolution imaging in the presence of multiple emitters, using a novel detector comprised of an array of single photon detectors connected to a densely packed fiber bundle. These features allow us to enhance the spatial and temporal resolution with which multiple emitters can be imaged compared with other techniques that rely on CCD cameras.
Research in Optical Sciences (2012), paper QT4B.3 | 2012
Yonatan Israel; Shamir Rosen; Itai Afek; Yaron Silberberg
We show that by mixing quantum spontaneous parametric down-conversion with the classical coherent state we can generate robust narrow features for quantum lithography, and high fidelity NOON states and correlated-photon-holes states.
Physical Review Letters | 2009
I. Bronstein; Yonatan Israel; Eldad Kepten; Sabine Mai; Yaron Shav-Tal; Eli Barkai; Yuval Garini
Physical Review Letters | 2014
Yonatan Israel; Shamir Rosen; Yaron Silberberg
Applied Physics B | 2016
Haim Suchowski; Barry D. Bruner; Yonatan Israel; Ayelet Ganany-Padowicz; Ady Arie; Yaron Silberberg
arXiv: Quantum Physics | 2017
Yonatan Israel; Lior Cohen; Xin-Bing Song; Jaewoo Joo; H. S. Eisenberg; Yaron Silberberg