Results 81 to 90 of about 129,349 (334)

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Integrated lithium niobate photonics

Nanophotonics, 2020
Lithium niobate (LiNbO3) on insulator (LNOI) is a promising material platform for integrated photonics due to single crystal LiNbO3 film’s wide transparent window, high refractive index, and high second-order nonlinearity.
Qi Yifan, Li Yang
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

Nanoscale detection and real-time monitoring of free radicals in a single living cell under the stimulation of targeting moieties using a nanodiamond quantum sensor

Functional Diamond
Intracellular radicals play important roles in cell signaling and regulation of growth factors, cytokines, transcription, apoptosis, and immunomodulation, among others.
Kaiqi Wu, Qi Lu, Maabur Sow, Priyadharshini Balasubramanian, Fedor Jelezko, Tanja Weil, Yingke Wu   +6 more
doaj   +1 more source

Enhanced microwave-atom coupling via quadrupole transition-dressed Rydberg atoms

Frontiers in Physics
The power broadening of a coupling laser can be converted into two-photon detuning by electromagnetically induced transparency (EIT), resulting in a residual Doppler effect.
Yijie Du, Yijie Du, Nan Cong, Yao Liu, Ziyao Lyu, Jun He, Renfu Yang   +6 more
doaj   +1 more source

Reconfigurable photonics with on-chip single-photon detectors

Nature Communications, 2021
Integrated photonics are promising to scale up quantum optics. Here the authors combine low-power microelectromechanical control and superconducting single-photon detectors on the same chip and demonstrate routing, high-dynamic-range detection, and power
Samuel Gyger, Julien Zichi, Lucas Schweickert, Ali W. Elshaari, Stephan Steinhauer, Saimon F. Covre da Silva, Armando Rastelli, Val Zwiller, Klaus D. Jöns, Carlos Errando-Herranz   +9 more
doaj   +1 more source

Coherent Time Evolution and Boundary Conditions of Two-Photon Quantum Walks

, 2012
Multi-photon quantum walks in integrated optics are an attractive controlled quantum system, that can mimic less readily accessible quantum systems and exhibit behavior that cannot in general be accurately replicated by classical light without an ...
A. Peruzzo, A. Politi, G. Lifante, J. C. F. Matthews, J. C. F. Matthews, J. D. A. Meinecke, J. L. O’Brien, K. Mattle, K. Poulios, K. Wörhoff, M. G. Thompson, N. Ismail   +11 more
core   +1 more source

Ultra-compact silicon nitride grating coupler for microscopy systems [PDF]

, 2017
Grating couplers have been widely used for coupling light between photonic chips and optical fibers. For various quantum-optics and bio-optics experiments, on the other hand, there is a need to achieve good light coupling between photonic chips and ...
Brainis, Edouard, Jiao, Yuqing, Li, Yanlu, Tian, Bin, Van Thourhout, Dries, Wang, Jie, Xie, Weiqiang, Zhu, Yunpeng   +7 more
core   +2 more sources

Research progress of integrated optical quantum computing

Acta Physica Sinica, 2022
<sec>Quantum computing, based on the inherent superposition and entanglement properties of quantum states, can break through the limits of classical computing power. However, under the present technical conditions, the number of qubits that can be manipulated is still limited.
Wen-Hao Zhou, Yao Wang, Wen-Kang Weng, Xian-Min Jin   +3 more
openaire   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source