Results 51 to 60 of about 5,669 (172)

Multifunctional Chiral Halide Perovskites: Advancing Chiro‐Optics, Chiro‐Optoelectronics, and Spintronics

open access: yesAdvanced Science, EarlyView.
This review spotlights key advances in chiral halide perovskite materials and devices, covering device architectures, fabrication methods, and emerging applications like circularly polarized light functions, neuromorphic computing, and spintronics. It explores structure‐property relationships and chirality transfer mechanisms, discusses challenges in ...
Qi Liu, Hui Ren, Qi Wei, Mingjie Li
wiley   +1 more source

Optothermal dynamics in whispering-gallery microresonators

open access: yesLight: Science & Applications, 2020
Optical microresonators: Investigating light’s tiny whispers Optical whispering-gallery mode microresonators can trap light in a highly confined volume, similar to the behavior of sound waves in the famous whispering gallery of St Paul’s Cathedral ...
Xuefeng Jiang, Lan Yang
doaj   +1 more source

Focused Xe‐Ion Plasma Beam Milling of Coumarin‐153 Single Crystals Into Photonic Cavities–Experimental and Theoretical Investigations

open access: yesAdvanced Physics Research, EarlyView.
The geometrical shaping of coumarin‐153 single crystals into next‐generation disc and ring resonators using Xe‐plasma FIB milling is demonstrated. Optimized beam parameters (30 kV, 100 pA/50 pA) enabled precise fabrication. This approach minimizes structural damage while ensuring high‐quality photonic traits.
Melchi Chosenyah   +5 more
wiley   +1 more source

(INVITED) Monolithic total internal reflection resonators for applications in photonics

open access: yesOptical Materials: X, 2019
Monolithic total internal reflection resonators confine light through traveling-waves that can feature high quality factors and small mode volumes.
Guoping Lin, Yanne K. Chembo
doaj  

Whispering gallery resonator method for measurementspermittivity

open access: yesJournal of Telecommunications and Information Technology, 2002
The new method of measuring permittivity is described. The measurements are performed using whispering gallery mode open dielectric resonators. The accuracy is assured by applications of the mode matching method.
Krzysztof Derzakowski   +2 more
doaj   +1 more source

Collective Excitonic Assembly in Perovskite Superlattice

open access: yesLaser &Photonics Reviews, EarlyView.
Schematic depiction of CESF, illustrating that once the excitation laser density surpasses the threshold, the whispering gallery mode is initiated, resulting in the appearance of the CESF effect with an increase in collective dipole density. Time evolution of coherence properties under two‐beam excitation for delay times tD<0.1$t_D<0.1$ ps in CESF ...
Jiqing Tan   +11 more
wiley   +1 more source

Perovskite Quantum Dot‐Enhanced Silicon Photodetectors for High‐Performance Infrared Sensing

open access: yesSmall Science, EarlyView.
A high‐performance infrared photodetector integrating scallop‐structured silicon nanowires with tin‐substituted perovskite quantum dots (PQDs) is reported, enabling enhanced responsivity beyond 1100 nm. The nanowire architecture ensures resonant light trapping, while the PQDs boost charge generation and transfer.
Dohun Baek   +8 more
wiley   +1 more source

Simulations of single-mode laser emission along a waveguide connected to cross-coupled microresonators

open access: yesResults in Optics, 2022
Objective: Single-mode operation is very important for laser emissivity; to exceed the emissivity of a single laser, the phase locking of all lasers in an array can be achieved only when the laser array is coupled and operated in single-mode. Methods: In
Lulu Wang, Zhihong Zhang, Heng Gao
doaj  

From Single to Multi‐Material 3D Printing of Glass‐Ceramics for Micro‐Optics

open access: yesSmall Methods, EarlyView.
This article explores advancements in two‐photon lithography (TPL) for fabricating high‐refractive‐index micro‐optics. It examines single and multi‐material 3D architectures in glass and ceramics (GLACEs), highlighting photoresin customization, critical fabrication conditions, and cross‐scale structural and optical characterization.
Joel Arriaga‐Dávila   +10 more
wiley   +1 more source

Low Noise and Drift Reconfigurable Solution‐Processed Chalcogenide Phase Change Metasurfaces

open access: yesSmall Methods, EarlyView.
Chalcogenide glasses, favored in reconfigurable optoelectronics, rely on costly ultra‐high vacuum‐based PVD methods. A cost‐effective, solution‐based approach to synthesize these materials, producing high‐quality antimony sulfide films with comparable phase change performance are introduced.
Mahirah Zaini   +7 more
wiley   +1 more source

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