Results 221 to 230 of about 2,362,388 (352)

Understanding and Circumventing Failure Mechanisms in Chalcogenide Optical Phase Change Material Ge2Sb2Se4Te

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Chalcogenide optical PCMs have gathered interest for their potential in compact, non‐volatile optics and photonics. Free‐space PCM metasurfaces require new considerations from phase change memory that need to be addressed for reliable scale‐up. Several failure mechanisms pertaining to free‐space PCM devices and layout methods are isolated to prevent ...
Cosmin Constantin Popescu   +19 more
wiley   +1 more source

Enhancing ophthalmology education through a mobile flipped classroom: a new teaching method. [PDF]

open access: yesBMC Res Notes
Yadgari M   +4 more
europepmc   +1 more source

A Dual‐Emissive DNA‐Templated Silver Nanocluster with Near‐Infrared I and II Emission

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study presents a dual‐emissive DNA‐stabilized silver nanocluster with a nanosecond‐lived NIR‐I emission band and a microsecond‐lived NIR‐II emission band. Mass spectrometry establishes that the nanocluster has molecular formula (DNA)2[Ag17]11+. DNA sequence variations reveal critical nucleobases for stabilization, and modifications at the DNA 5 ...
Anna Gonzàlez‐Rosell   +6 more
wiley   +1 more source

On‐Chip Control of Electron Emission with an Active Terahertz Metasurface

open access: yesAdvanced Optical Materials, EarlyView.
A THz pulse drives Fowler‐Nordheim electron emission from gold dipole antennas. Changing the on‐chip DC bias bends the electron path toward or away from the bias pads. Abstract Terahertz (THz) radiation has emerged as a powerful tool for inducing ultrafast electron emission and controlling electron beams, with applications in photonics and electron ...
Matej Sebek   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy