Results 71 to 80 of about 3,537,154 (243)

Direct experimental characterization of the Bose–Einstein distribution of spatial fluctuations of spontaneous parametric down–conversion

open access: yes, 2004
We present, to the best of our knowledge, the first experimental demonstration by direct detection of the Bose-Einstein photon-number distribution of highly spatially multi-mode but temporally single mode spontaneous parametric down ...
A. Mosset   +7 more
core   +1 more source

Bioinspired Co‐Assembly Enables Multiscale Architected Hydrogels for 3D Printing With Integrated Antibacterial and Bioactive Functions

open access: yesAdvanced Functional Materials, EarlyView.
A multicomponent supramolecular hydrogel integrating cell‐adhesive and antibacterial peptides within an alginate‐cellulose nanofibril matrix is developed. Peptide co‐assembly simultaneously strengthens the hydrogel network, improves extrusion printability, and imparts cell‐adhesive and antibacterial functions, offering a versatile platform for ...
Mor Tsuriano‐Zernichov   +4 more
wiley   +1 more source

Stimulated emission tomography for efficient characterization of spatial entanglement

open access: yesPhysical Review Research
Stimulated-emission tomography (SET) is an excellent tool for characterizing the process of spontaneous parametric down conversion (SPDC), which is commonly used to create pairs of entangled photons for use in quantum information protocols.
Yang Xu   +2 more
doaj   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

open access: yesAdvanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee   +5 more
wiley   +1 more source

Quantum Entangled Photon‐Pair Generation From van der Waals NbOI2

open access: yesAdvanced Photonics Research
The realization of quantum light sources is crucial for advancing quantum technologies. Two‐dimensional van der Waals (vdW) materials offer a compelling platform for ultracompact entangled photon‐pair sources due to their strong optical nonlinearities ...
Shaohua Fu   +3 more
doaj   +1 more source

Spontaneous Parametric Down-Conversion in Nonlinear Metasurfaces

open access: yes, 2022
1 S.Resonant nonlinear metasurfaces gained a lot of interest in the past decade because of their unique features such as subwavelength thickness and ability to control spatial and temporal properties of light.
Younesi, M.   +8 more
core   +1 more source

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

open access: yesAdvanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte   +6 more
wiley   +1 more source

Spatial interference effect of two-photon in femtosecond-pulse pumped spontaneous parametric down-conversion

open access: yes, 2002
We have used the transverse correlated properties of the entangled photon pairs generated in the process of spontaneous parametric down-conversion, which is pumped by a femtosecond pulse laser, to perform Young's interference experiment.
Lu SL,Chinese Acad Sci,Inst Semicond,Natl Lab Superlattices & Microstruct,POB 912,Beijing 100083,Peoples R China.   +5 more
core  

Degenerate spontaneous parametric down-conversion in nonlinear metasurfaces

open access: yes, 2023
We propose a simple scheme of degenerate spontaneous parametric down-conversion (SPDC) in nonlinear metasurfaces or photonic crystal slabs with quasi-guided modes.
Tetsuyuki Ochiai (9324299)
core   +1 more source

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