Results 81 to 90 of about 3,503,750 (176)
Observation of spontaneous parametric down conversion in LiNbO3 waveguide arrays
, 2016 We study experimentally the process of bi-photon generation through spontaneous parametric down-conversion in waveguide arrays. We show the formation of a unique spatial-spectral photon pattern and its dependence on the phase-matching ...
Pertsch, Thomas +6 more
core
Physical Review ResearchFor high-intensity photon pair generation via spontaneous parametric down-conversion, phase matching or quasi-phase-matching must be realized. The most common method is to use periodically poled crystals, where quasi-phase-matching is achieved through ...
Aljaž Kavčič +2 more
doaj +1 more source
Spontaneous parametric down-conversion in bottom-up grown lithium niobate microcubes
, 2022 We demonstrate the generation of biphotons from a free-standing, bottom-up grown lithium niobate microcube at telecommunication wavelength through the spontaneous parametric down-conversion.
Jolanda S Müller +10 more
core
Optimal collinear Gaussian beams for spontaneous parametric down-conversion [PDF]
Physical Review A, 2010 I investigate the properties of spontaneous parametric down-conversion (SPDC) involving co-linear Gaussian spatial modes for the pump and the photon collection optics. Approximate analytical and numerical results are obtained for the peak spectral density, photon bandwidth, pair collection probability, heralding ratio, and spectral purity, as a ...
openaire +2 more sources
EPJ Web of Conferences, 2015 The features of biphotons states generated via spontaneous four-wave mixing in nanofibers with a variable cross-section are studied. The spectral amplitude of the biphoton field is calculated and the effects of interference and phase modulation of the ...
Hižnjakov V., Loot A.
doaj +1 more source
Communications PhysicsFourier-transform infrared spectroscopy (FTIR) is an indispensable analytical method that allows label-free identification of substances via fundamental molecular vibrations.
Kazuki Hashimoto +5 more
doaj +1 more source
New Journal of Physics, 2015 In spontaneous parametric down conversion (SPDC) based quantum information processing (QIP) experiments, there is a tradeoff between the coincidence count rates (i.e.
Masahiro Takeoka +2 more
doaj +1 more source
LiNbO3 waveguides for integrated SPDC spectroscopy
APL Photonics, 2018 Spontaneous parametric down-conversion (SPDC) spectroscopy using photon pairs is a promising avenue towards affordable mid-infrared (MIR) spectroscopy. Here, we experimentally investigate the feasibility of using periodically poled waveguides in lithium ...
Alexander S. Solntsev +4 more
doaj +1 more source
Applied SciencesPolarization-sensitive quantum optical coherence tomography (PS-QOCT) is used to image and characterize birefringence effects in biological samples. Entangled photons are generated via spontaneous parametric down-conversion and split into a reference arm
Vitaly Sukharenko, Roger Dorsinville
doaj +1 more source
Sunlight-excited spontaneous parametric down-conversion for ghost imaging
Advanced PhotonicsGhost imaging (GI) has been under development for several years and is now achievable in both single- and multiphoton regimes with both quantum and classical light. Here, we address the experimental challenge of using sunlight as a pump beam to excite spontaneous parametric down-conversion and generate photon pairs.
Ye Xing +5 more
openaire +2 more sources