Results 211 to 220 of about 171,689 (340)

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

Quantum interference and occupation control in high harmonic generation from monolayer WS<sub>2</sub>. [PDF]

open access: yesNat Commun
Kim M   +15 more
europepmc   +1 more source

Bay‐functionalized [7]Helicene Bilayer Nanographenes

open access: yesAdvanced Optical Materials, EarlyView.
Bay‐functionalized [7]helical bilayer nanographenes are synthesized via a scalable, modular strategy enabling late‐stage diversification. Tailored methoxy, diketone, and phenazine substitutions precisely tune redox, photophysical, and chiroptical properties, delivering strong electronic circular dichroism and bright circularly polarized luminescence ...
Anmol Thanai   +9 more
wiley   +1 more source

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

open access: yesAdvanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro   +3 more
wiley   +1 more source

Uni-traveling-carrier photodiode based on MoS<sub>2</sub>/GaN van der Waals heterojunction for high-speed visible-light detection. [PDF]

open access: yesNat Commun
Kadowaki T   +7 more
europepmc   +1 more source

Enhancing Triplet Excitons Lifetime Through Controlled Intermolecular Interactions

open access: yesAdvanced Optical Materials, EarlyView.
Singlet fission (SF) is investigated in pentacene embedded in a surface‐anchored metal–organic framework, enabling a molecular arrangement inaccessible in pure organic crystals. This architecture changes the singlet fission dynamics significantly and enhances the triplet lifetime by almost four orders of magnitude.
Martin Richter   +9 more
wiley   +1 more source

Reversible Tuning of Nanowire Quantum Dot to Atomic Transitions. [PDF]

open access: yesACS Photonics
Al Maruf R   +12 more
europepmc   +1 more source

Room‐Temperature, Photo‐Densified High Refractive Index Titanium Oxide Thin Films for Solution‐Processed Flexible Bragg Mirrors and Microcavity OLEDs

open access: yesAdvanced Optical Materials, EarlyView.
This paper presents the room‐temperature fabrication of solution‐processed, high refractive index TiOX thin films via photo‐densification. Using these films, flexible Bragg mirrors are demonstrated on PET substrates, achieving a high reflectivity of 96% at 450 nm.
Ayumu Nagaoka   +5 more
wiley   +1 more source

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