Results 21 to 30 of about 321,428 (283)
Multi-photon absorption limits to heralded single photon sources [PDF]
Scientific Reports, 2013 6 figures, 12 ...
Husko, Chad A. +9 more
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Doubly heralded single-photon absorption by a single atom [PDF]
Applied Physics B, 2016 We report on a single-photon-to-single-atom interface, where a single photon generated by Spontaneous Parametric Down Conversion (SPDC) is absorbed by a single trapped ion. The photon is heralded by its time-correlated partner generated in the SPDC process, while the absorption event is heralded by a single photon emitted in its course.
Brito, José +4 more
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Telecom-heralded single-photon absorption by a single atom [PDF]
Physical Review A, 2015 We present, characterize, and apply a photonic quantum interface between the near infrared and telecom spectral regions. A singly resonant optical parametric oscillator (OPO) operated below threshold, in combination with external filters, generates high-rate ($>2.5\cdot10^6~{\rm s}^{-1}$) narrowband photon pairs ($\sim 7$ MHz bandwidth); the signal ...
Lenhard, Andreas +7 more
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A chiral one-dimensional atom using a quantum dot in an open microcavity
npj Quantum Information, 2022 In a chiral one-dimensional atom, a photon propagating in one direction interacts with the atom; a photon propagating in the other direction does not. Chiral quantum optics has applications in creating nanoscopic single-photon routers, circulators, phase-
Nadia O. Antoniadis +8 more
doaj +1 more source
Coherent perfect absorption of single photons in a fiber network [PDF]
Applied Physics Letters, 2019 Large distance implementation of quantum communication technologies requires coherent control of single photons in optical fiber networks. Here we demonstrate the phenomenon of coherent perfect absorption of single photons in a fully fiberized ultrathin plasmonic metamaterial fabricated at the end facet of an optical fiber. Continuous control of single-
Anton N. Vetlugin +6 more
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Photonics, 2022 The fluorescence anisotropy of photosensitizers Radachlorin and chlorin e6 was studied using the time-resolved single photon-counting technique under one- and two-photon excitation within the Soret absorption band.
Ioanna A. Gorbunova +6 more
doaj +1 more source
Single-photon absorption by single photosynthetic light-harvesting complexes [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2018 We provide a unified theoretical approach to the quantum dynamics of absorption of single photons and subsequent excitonic energy transfer in photosynthetic light-harvesting complexes. Our analysis combines a continuous mode -photon quantum optical master equation for the chromophoric system with the hierarchy of equations of motion describing ...
Herman C H Chan +3 more
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Synthesis, as well as linear and nonlinear fluorescence properties of 5, 5’-bis(4-N-carbazolylstyryl)-2, 2’-bithiophene [PDF]
Journal of the Serbian Chemical Society, 2004 Anew bithiophene-based organic luminescence material, named 5,5’-bis(4-N-carbazoylstyryl)- 2,2’-bithiophene (BCSBT), was synthesized. Its single-photon excited fluorescence band is located in the range of 520–530 nm, with a quantum yield of around 10 ...
Xia Guang-Ming, Lu Ping, Xu Gui-Bao
doaj +3 more sources
Coherent perfect absorption of path entangled single photons
Optics Express, 2014 We examine the question of coherent perfect absorption (CPA) of single photons, and more generally, of the quantum fields by a {\it macroscopic} medium. We show the CPA of path entangled single photons in a Fabry-Perot interferometer containing an absorptive medium.
Huang, Sumei, Agarwal, G. S.
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Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures [PDF]
Scientific Reports, 2013 Plasmonic structures open novel avenues in photodetector development. Optimized illumination configurations are reported to improve p-polarized light absorptance in superconducting-nanowire single-photon detectors (SNSPDs) comprising short- and long-periodic niobium-nitride (NbN) stripe-patterns.
Najafi, Faraz +5 more
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