Results 191 to 200 of about 187,475 (328)

Injection Locking of Gigahertz‐Frequency Surface Acoustic Wave Phononic Crystal Oscillator

open access: yesphysica status solidi (a), EarlyView.
The compact surface‐acoustic‐wave phononic‐crystal oscillator is stabilized by injection locking it to an ultra‐stable reference. The injection locking suppresses the phase noise by 40 dB at low offset frequency region and reduces long‐term frequency drift from hundreds of hertz to 0.35 Hz, advancing portable, high‐performance timing and signal ...
Zichen Xi   +6 more
wiley   +1 more source

The effects of new information technology on the less-favoured regions of the Community. Studies: Regional Policy Series 23 [PDF]

open access: yes, 1984
Gillespie, Andrew   +4 more
core  

Substrate‐Versatile and Stress‐Free Tellurization of PtTe2 Films

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
A two‐step (platinum deposition followed by tellurization) scalable process that can be easily combined with lithographic techniques is developed for the growth of PtTe2 films. By optimizing a slower tellurization thermal ramp, stress‐free PtTe2 growth both on silicon and dielectric substrates is achieved, proving substrate versatility.
Matteo Gardella   +7 more
wiley   +1 more source

Impacts of atmospheric river reconnaissance dropsondes on ECMWF Integrated Forecasting System precipitation forecasts

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Impacts of Atmospheric River Reconnaissance dropsonde observations on precipitation forecasts over the U.S. West Coast are examined in the European Centre for Medium‐Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using observing‐system experiments.
Jia Wang   +7 more
wiley   +1 more source

High‐Purity Single‐Photon Emission in the Telecom O‐Band from Droplet‐Epitaxy InAs Quantum Dots Integrated into a GaAs/AlGaAs Planar Microcavity on Vicinal GaAs(111)A Platform

open access: yesAdvanced Quantum Technologies, EarlyView.
High‐purity single‐photon emission at telecom O‐band is demonstrated from droplet‐epitaxy InAs quantum dots embedded in a GaAs/AlGaAs microcavity. Strain engineering via an InAlAs buffer enables broadband telecom emission with high purity, short lifetimes, and enhanced extraction.
Paweł Wyborski   +7 more
wiley   +1 more source

Low‐Loss Polarization‐Maintaining Router for Single and Entangled Photons at a Telecom Wavelength

open access: yesAdvanced Quantum Technologies, EarlyView.
A novel electro‐optic routing of arbitrarily polarized single photons and, crucially, multi‐photon entangled states is demonstrated. Utilizing optics with near‐normal incidence and cross‐aligned electro‐optic crystals, low‐loss polarization‐maintaining routing is achieved with a minimal number of components.
Pengfei Wang   +5 more
wiley   +1 more source

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