Results 301 to 310 of about 3,261,865 (370)

Refractive Error, Axial Length, and Relative Peripheral Refractive Error before and after the Onset of Myopia

open access: green, 2007
Donald O. Mutti   +9 more
openalex   +1 more source

Non‐Contact, Non‐Contamination, and High‐Resolution Electrostatic Imaging with Floating‐Extended‐Gate Organic Field‐Effect Transistors

open access: yesAdvanced Materials Technologies, EarlyView.
Invisible static electricity poses serious industrial risks such as electronics failures and fire accidents. Detecting it is particularly challenging when positive and negative charges are densely mixed. Flexible and printed organic transistor sensors can visualize these hidden charge patterns on plastic surfaces.
Yudai Hemmi   +5 more
wiley   +1 more source

Influence of Outcoupling Layers on Top‐Emitting Perovskite Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Top‐emitting perovskite LEDs offer benefits over typical bottom‐emitting architectures, toward lasing, improved thermal management, and on‐chip fabrication compatibility. Outcoupling layers offer a strategy uniquely applicable to top‐emitting LEDs to optimize EQE by improving optical outcoupling.
James C. Loy   +5 more
wiley   +1 more source

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song   +8 more
wiley   +1 more source

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

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