Results 81 to 90 of about 3,504,323 (217)
Carrier-envelope-phase Dependence in Spontaneous Parametric Down-Conversion
The influence of the carrier-envelope phase of a femtosecond pump laser pulse on spontaneous parametric down-conversion is investigated. We show that the coincidence rates and joint spectrum intensity of the generated entangled biphotons are modified.
Sanjit Karmakar, Chen-Ting Liao
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, 2018 We report the complete measurement of the spectral properties of entangled photon pairs generated via frequency-degenerate type-I spontaneous parametric down-conversion pumped by a cw laser in both the collinear and the noncollinear regimes.
Baek, SY, Kim, YH
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New Journal of Physics, 2019 The existing widely-accepted theory of photon-pair generation via spontaneous down-conversion (SPDC) in nonlinear optical crystals and waveguides is incomplete, as it fails to account for the important physical phenomenon of parametric resonances.
Philip B Main +2 more
doaj +1 more source
, 2018 Relying on the bandgap modes of a nonlinear periodic waveguide, we propose the concept of atom-mediated spontaneous parametric down-conversion, where photon-pairs are only generated with a single 2-level emitter present, creating a heralded excitation ...
Pertsch, Thomas +9 more
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New Journal of Physics, 2020 Photon pairs and heralded single photons, obtained from cavity-assisted parametric down conversion (PDC), play an important role in quantum communications and technology.
Golnoush Shafiee +8 more
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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
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
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.
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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
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
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