Results 121 to 130 of about 29,739 (303)

Algorithmic Design of Disordered Networks With Arbitrary Coordination: Application to Biophotonics

open access: yesAdvanced Functional Materials, EarlyView.
Predictive Design of Disordered Networks: Disordered network‐like morphologies are abundant in nature, from cytoskeletal networks to bone structures and chalcogenide glasses. These structures are naturally hard to characterize. A new algorithmic tool extends the established Wooten–Weaire–Winer (WWW) algorithm to valencies above 4.
Florin Hemmann   +3 more
wiley   +1 more source

A noise-immune cavity-assisted non-destructive detection for an optical lattice clock in the quantum regime

open access: yesNew Journal of Physics, 2017
We present and implement a non-destructive detection scheme for the transition probability readout of an optical lattice clock. The scheme relies on a differential heterodyne measurement of the dispersive properties of lattice-trapped atoms enhanced by a
G Vallet   +5 more
doaj   +1 more source

Ultracold atomic gases of strontium

open access: yes, 2020
The thesis describes the design and construction of a new versatile strontium quantum gas machine with envisioned quantum gas microscope capability. The relevant theory for the operation of a quantum gas experiment in general is presented, as well as the peculiarities of working with strontium, and the calculation of a single-site single-atom detection
openaire   +1 more source

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber   +12 more
wiley   +1 more source

Autoionization of very-high-n strontium Rydberg atoms

open access: yesJournal of Physics: Conference Series, 2017
The autoionization of high n, n~280-430, strontium Rydberg states through excitation of the 5s 2S1/2→5p 2P1/2 transition in the core ion is investigated. The autoionization rates decrease rapidly as L is increased paving the way for production of long-lived two-electron-excited planetary atoms.
Zhang, X.   +4 more
openaire   +2 more sources

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Formation of ultracold SrYb molecules in an optical lattice by photoassociation spectroscopy: theoretical prospects

open access: yes, 2011
State-of-the-art {\em ab initio} techniques have been applied to compute the potential energy curves for the SrYb molecule in the Born-Oppenheimer approximation for the ground state and first fifteen excited singlet and triplet states within the coupled ...
Amiot   +80 more
core   +1 more source

Single strontium atoms in optical tweezers

open access: yes, 2023
This thesis shows our work towards trapping single strontium atoms inside tightly focused off-resonant laser beams, known as optical tweezers. More specifically, we demonstrate high-fidelity imaging of single strontium atoms using its narrow (7.4 kHz-wide) 1S0 - 3P1 transition. The atoms are trapped in non-magic-wavelength tweezers for this transition.
openaire   +1 more source

Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation

open access: yesAdvanced Functional Materials, EarlyView.
We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali   +7 more
wiley   +1 more source

Fast and dense magneto-optical traps for Strontium

open access: yes, 2019
We improve the efficiency of sawtooth-wave-adiabatic-passage (SWAP) cooling for strontium atoms in three dimensions and combine it with standard narrow-line laser cooling. With this technique, we create strontium magneto-optical traps with $6\times 10^7$
Blatt, S.   +4 more
core   +1 more source

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