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Topological dipole Floquet solitons
(American Physical Society, 2021-05-11)
Article
Open AccessWe theoretically introduce a type of topological dipole soliton propagating in a Floquet topological insulator based on a kagome array of helical waveguides. Such solitons bifurcate from two edge states belonging to different ... -
Reversible self-replication of spatiotemporal Kerr cavity patterns
(American Institute of Physics (AIP), 2021-02-12)
Article
Open AccessWe uncover a novel and robust phenomenon that causes the gradual self-replication of spatiotemporal Kerr cavity patterns in cylindrical microresonators. These patterns are inherently synchronized multifrequency combs. Under ... -
Quantum-inspired Fredkin gate based on spatial modes of light
(2020-04-27)
Article
Open AccessInsights gained from quantum physics can inspire novel classical technologies. These quantum-inspired technologies are protocols that aim at mimicking particular features of quantum algorithms. They are generally easier ... -
Optical coherence tomography with a nonlinear interferometer in the high parametric gain regime
(2020-08-31)
Article
Open AccessWe 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 ... -
Frequency-correlation requirements on the biphoton wave function in an induced-coherence experiment between separate sources
(American Physical Society, 2020-11-11)
Article
Open AccessThere is renewed interest in using the coherence between beams generated in separate down- converter sources for new applications in imaging, spectroscopy, microscopy and optical coherence tomography (OCT). These schemes ... -
Nonlinearity-induced photonic topological insulator
(2020-11-06)
Article
Open AccessA hallmark feature of topological insulators is robust edge transport that is impervious to scattering at defects and lattice disorder. We demonstrate a topological system, using a photonic platform, in which the existence ... -
Spiraling vortices in exciton-polariton condensates
(American Physical Society (APS), 2020-07-23)
Article
Open AccessWe introduce the phenomenon of spiraling vortices in driven-dissipative (nonequilibrium) exciton-polariton condensates excited by a nonresonant pump beam. At suitable low pump intensities, these vortices are shown to spiral ... -
Ultrashort pulse characterisation with SHG collinear-FROG
(2004-03)
Article
Open AccessWe outline criteria for fast and accurate acquisition of collinear FROG (CFROG) trace and how it can be transformed into the more traditional noncollinear FROG trace. The CFROG has an intrinsically simple geometry that ... -
Angular control of anisotropy-induced bound states in the continuum
(2019-11-01)
Article
Open AccessRadiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation, resulting in fully bound states surrounded ... -
Transition from Dirac points to exceptional points in anisotropic waveguides
(American Physical Society, 2019-10-04)
Article
Open AccessWe uncover the existence of Dirac and exceptional points in waveguides made of anisotropic materials, and study the transition between them. Dirac points in the dispersion diagram appear at propagation directions where the ... -
Random number generation by coherent detection of quantum phase noise
(2020-02-17)
Article
Open AccessIn 2010 Qi et al. [Opt. Lett. 35(3), 312 (2010)] demonstrated a random number generator based on the drift of the phase of a laser due to spontaneous emission, The out-of-the-lab implementation of this scheme presents two ... -
Localization and delocalization of light in photonic moiré lattices
(Macmillan Publishers, 2020-01-02)
Article
Open AccessMoiré lattices consist of two superimposed identical periodic structures with a relative rotation angle. Moiré lattices have several applications in everyday life, including artistic design, the textile industry, architecture, ...
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