English
Related papers

Related papers: A non-degenerate optical parametric oscillator as …

200 papers

A quantum illumination protocol exploits correlated light beams to enhance the probability of detection of a partially reflecting object lying in a very noisy background. Recently a simple photon-number-detection based implementation of a…

Quantum optical technologies promise advances in sensing, computing, and communication. A key resource is squeezed light, where quantum noise is redistributed between optical quadratures. We introduce a monolithic, chip-scale platform that…

In this paper, we address the issue of the generation of non-degenerate cross-polarization-entangled photon pairs using type-II periodically poled lithium niobate. We show that, by an appropriate engineering of the quasi-phase-matching…

Quantum Physics · Physics 2012-01-10 K. Thyagarajan , K. Sinha , J. Lugani , S. Ghosh , A. Martin , D. B. Ostrowsky , O. Alibart , S. Tanzilli

We treat the stability issue for the three dimensional inverse imaging modality called Quantitative Photoacoustic Tomography. We provide universal choices of the illuminations which enable to recover, in a H\"older stable fashion, the…

Analysis of PDEs · Mathematics 2015-05-15 Giovanni Alessandrini , Michele Di Cristo , Elisa Francini , Sergio Vessella

We develop a unified theoretical framework for the efficient description of multiphoton states generated and propagating in loop-based optical networks which contain nonlinear elements. These active optical components are modeled as…

Quantum Physics · Physics 2020-08-24 M. Engelkemeier , L. Lorz , Syamsundar De , B. Brecht , I. Dhand , M. B. Plenio , C. Silberhorn , J. Sperling

We show that an Optical Parametric Oscillator which is simultaneously resonant for several modes, either spatial or temporal, generates both below and above threshold a multimode non-classical state of light consisting of squeezed vacuum…

Quantum Physics · Physics 2015-05-14 Benoît Chalopin , Francesco Scazza , Claude Fabre , Nicolas Treps

In quantum optics, the postselection amplitude of a nondegenerate parametric down-conversion (PDC) process is linked to a beamsplitter (BS) via partial time reversal, up to a normalization coefficient which is related to the parametric gain…

Quantum Physics · Physics 2025-10-10 Yi Zheng , Jin-Shi Xu , Chuan-Feng Li , Guang-Can Guo

Quantum nondemolition (QND) measurements of photons is a much pursued endeavor in the field of quantum optics and quantum information processing. Here we propose a novel hybrid optoelectromechanical platform that integrates a cavity system…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Junjie Liu , Hsing-Ta Chen , Dvira Segal

Nonlinear interferometry with entangled photons allows for characterizing a sample without detecting the photons interacting with it. This method enables highly sensitive optical sensing in the wavelength regions where efficient detectors…

Optics · Physics 2025-08-11 Kazuki Hashimoto , Dmitri B. Horoshko , Maria V. Chekhova

We address the exploitation of an optical parametric oscillator (OPO) in the task of mitigating, at least partially, phase noise produced by phase diffusion. In particular, we analyze two scenarios where phase diffusion is typically…

We recently demonstrated orders of magnitude enhancement of two-photon absorption (2PA) in direct gap semiconductors due to intermediate state resonance enhancement for photons of very different energies. It can be expected that further…

A system of harmonic oscillators coupled via nonlinear interaction is a fundamental model in many branches of physics, from biophysics to electronics and condensed matter physics. In quantum optics, weak nonlinear interaction between light…

Quantum Physics · Physics 2017-10-24 Shiqian Ding , Gleb Maslennikov , Roland Hablutzel , Huanqian Loh , Dzmitry Matsukevich

In this paper we examine the N-photon absorption properties of "N00N" states, a subclass of path entangled number states. We consider two cases. The first involves the N-photon absorption properties of the ideal N00N state, one that does…

Quantum Physics · Physics 2009-08-11 William N. Plick , Christoph F. Wildfeuer , Petr M. Anisimov , Jonathan P. Dowling

Kerr parametric oscillators (KPOs) implemented in the circuit QED architecture can operate as qubits. Their applications to quantum annealing and universal quantum computation have been studied intensely. For these applications, the readout…

Quantum Physics · Physics 2023-09-12 Yuta Suzuki , Shiro Kawabata , Tsuyoshi Yamamoto , Shumpei Masuda

We propose and design a high-brightness, ultra-compact electrically pumped GaSb-based laser source of entangled photons generated by mode-matched intracavity parametric down-conversion of lasing modes. To describe the nonlinear mixing in…

Quantum Physics · Physics 2022-03-23 Mikhail Tokman , Yongrui Wang , Qianfan Chen , Leon Shterengas , Alexey Belyanin

Spatial quantum enhancement effects are studied under a unified framework. It is shown that the multiphoton absorption rate of photons with a quantum-enhanced lithographic resolution is reduced, not enhanced, contrary to popular belief. The…

Quantum Physics · Physics 2007-05-23 Mankei Tsang

Heralded single-photon sources are a fundamental building block for optical quantum technologies. These sources need to be unfiltered and integrated to have good scalability and avoid unnecessary losses. To attain this goal, it is necessary…

In this article, we theoretically study the quantum statistical properties of the light transmitted through or reflected from an optical cavity, filled by an atomic medium with strong optical non-linearity induced by Rydberg-Rydberg van der…

Quantum Physics · Physics 2019-06-14 A. Grankin , E. Brion , E. Bimbard , R. Boddeda , I. Usmani , A. Ourjoumtsev , P. Grangier

Complete characterization of a multimode optical process has paved the way for understanding complex optical phenomena, leading to the development of novel optical technologies. Until now, however, characterizations have mainly focused on a…

Quantum Physics · Physics 2026-05-13 Geunhee Gwak , Chan Roh , Young-Do Yoon , M. S. Kim , Young-Sik Ra

We report the demonstration of a bulk, intrinsically phase-stable source of polarization- and time-energy-entangled photon pairs at 810nm and 1550nm, directly coupled into single-mode optical fibers. This highly non-degenerate wavelength…

‹ Prev 1 4 5 6 7 8 10 Next ›