Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Frascella, Gaetano"'
Publikováno v:
Phys. Rev. Research 3, 033250 (2021)
Two-photon absorption (TPA) is of fundamental importance in super-resolution imaging and spectroscopy. Its nonlinear character allows for the prospect of using quantum resources, such as entanglement, to improve measurement precision or to gain new i
Externí odkaz:
http://arxiv.org/abs/2105.01561
Publikováno v:
Optics Letters Vol. 46, Issue 10, pp. 2364-2367 (2021)
Phase-sensitive optical parametric amplification of squeezed states helps to overcome detection loss and noise and thus increase the robustness of sub-shot-noise sensing. Because such techniques, e.g., imaging and spectroscopy, operate with multimode
Externí odkaz:
http://arxiv.org/abs/2102.11659
Autor:
Shukla, Gaurav, Salykina, Dariya, Frascella, Gaetano, Mishra, Devendra Kumar, Chekhova, Maria V., Khalili, Farid Ya.
For a squeezing-enhanced SU(2) interferometer, we theoretically investigate the possibility to broaden the phase range of sub-shot-noise sensitivity. We show that this goal can be achieved by implementing detection in both output ports, with the opti
Externí odkaz:
http://arxiv.org/abs/2010.05276
Autor:
Averchenko, Valentin A., Frascella, Gaetano, Kalash, Mahmoud, Cavanna, Andrea, Chekhova, Maria V.
We propose a method for finding 2D spatial modes of thermal field through a direct measurement of the field intensity and an offline analysis of its spatial fluctuations. Using this method, in a simple and efficient way we reconstruct the modes of a
Externí odkaz:
http://arxiv.org/abs/2009.01778
We demonstrate optical coherence tomography based on an SU(1,1) nonlinear interferometer with high-gain parametric down-conversion. For imaging and sensing applications, this scheme promises to outperform previous experiments working at low parametri
Externí odkaz:
http://arxiv.org/abs/2006.02314
Publikováno v:
npj Quantum Information volume 7, Article number: 72 (2021)
Among the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic field, polarization, mechanical displacement. They promise to consider
Externí odkaz:
http://arxiv.org/abs/2005.08843
We study the spatial mode content at the output of a wide-field SU(1,1) interferometer, i.e. a nonlinear interferometer comprising two coherently-pumped spatially-multimode optical parametric amplifiers placed in sequence with a focusing element in b
Externí odkaz:
http://arxiv.org/abs/1909.05026
Autor:
Beltran, Lina, Frascella, Gaetano, Perez, Angela M., Fickler, Robert, Sharapova, Polina R., Tikhonova, Olga V., Boyd, Robert W., Leuchs, Gerd, Chekhova, Maria V.
Light beams with orbital angular momentum (OAM) are convenient carriers of quantum information. They can be also used for imparting rotational motion to particles and provide high resolution in imaging. Due to the conservation of OAM in parametric do
Externí odkaz:
http://arxiv.org/abs/1612.07387
Autor:
Frascella, Gaetano
Interferometers have become essential devices within research and industry because they can measure phase shifts, often very small ones. Increasing the number of probing photons enhances the accuracy of this measurement, but with a bounded scaling ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2091::5489c840e18406cb17ee783fe75bde33
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/17410
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/17410
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