Results 261 to 270 of about 306,273 (355)

Optical‐to‐Microcomb Stability Transfer for Ultrastable Timing and Microwave/Millimeter‐Wave Generation

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn   +4 more
wiley   +1 more source

Multiple outflows and delayed ejections revealed by early imaging of novae. [PDF]

open access: yesNat Astron
Aydi E   +41 more
europepmc   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

open access: yesLaser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero   +5 more
wiley   +1 more source

A Stellar magnesium to silicon ratio in the atmosphere of an exoplanet. [PDF]

open access: yesNat Commun
Sanchez JA   +19 more
europepmc   +1 more source

Epitaxial Integration of III–V Membrane Photodetectors With Lateral p–i–n Junctions on the Silicon‐On‐Insulator Waveguide Platform

open access: yesLaser &Photonics Reviews, EarlyView.
Epitaxial growth forms III–V membranes directly atop the silicon waveguide layer on SOI, while in‐plane in situ doping defines lateral p–i–n InP/InGaAs junctions in a single growth step. The membrane photodetectors achieve 50 Gb/s NRZ‐OOK operation.
Zhao Yan   +10 more
wiley   +1 more source

Imaging moiré flat bands and Wigner molecular crystals in twisted bilayer MoTe<sub>2</sub>. [PDF]

open access: yesNatl Sci Rev
Liu Y   +18 more
europepmc   +1 more source

EM Simulation Model of a Clinically‐Used RF Head Coil at 7 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
This article has been temporarily removed pending the resolution of a potential legal issue.
Dora Ozkara   +7 more
wiley   +1 more source

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