Results 51 to 60 of about 6,680 (218)

Optical Chaos Generation and Applications

open access: yesAdvanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen   +8 more
wiley   +1 more source

Nonlinear properties of high-Q optical microresonators in normal dispersion range

open access: yesEPJ Web of Conferences, 2017
We demonstrate the generation of Kerr frequency combs and platicons in whispering gallery mode crystalline microresonators in normal group velocity regime at 780 nm and 1064 nm wavelengths.
Shitikov Artem   +5 more
doaj   +1 more source

Multifunctional Infrared Polarizer Based on Aligned Growth of High‐Density Boron Nitride Nanotubes

open access: yesAdvanced Science, EarlyView.
This paper presents a novel method for the high‐density, aligned growth synthesis and purification of boron nitride nanotubes (BNNTs). The polarization sensitivity and linear dichroism characteristics of BNNTs in the near‐infrared and mid‐infrared bands are comprehensively verified.
Ningqiang Shi   +9 more
wiley   +1 more source

Out-of-plane trion emission in monolayer WSe2 revealed by whispering gallery modes of dielectric microresonators

open access: yesCommunications Materials, 2021
Out-of-plane photon emission in 2D semiconductors is rare but crucial for efficient light manipulation in planar optoelectronic devices and photonic chips.
Daniel Andres-Penares   +5 more
doaj   +1 more source

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

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

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

POSSIBILITY FOR FREQUENCY STABILIZATION OF MILLIMETER WAVELENGTH SOLID-STATE SOURCE BY A SCREENED DIELECTRIC RESONATOR [PDF]

open access: yesRadio Physics and Radio Astronomy, 2016
Purpose: Showing the possibility in principle of the use of a screened dielectric resonator excited by the planar waveguide to stabilize the frequency of solid-state sources in the millimeter wavelength range.
A. E. Kogut   +4 more
doaj   +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

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

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