Results 51 to 60 of about 2,407 (159)

Nanophotonic Biosensors and the Paradigm of Trans‐Scale Autonomous Bio‐Integrated Diagnostics for Addressing Health Complexities

Electron, EarlyView.
Physics‐driven advances in optical nanobiosensors for rapid, miniaturized, and point‐of‐care diagnostics for next‐generation decentralized and personalized healthcare based on sensor intelligence. ABSTRACT Public health emergencies and the escalating burden of chronic diseases necessitate a paradigm shift from centralized laboratory testing to rapid ...
Vishal Chaudhary, Harsh Sable, Sonu Sonu, Lakshita Phor, Reddicherla Umapathi, Pradeep Bhadola   +5 more
wiley   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Recent progress and challenges in top‐emitting quantum dot light‐emitting diodes

FlexMat, EarlyView.
This review summarizes recent advances in top‐emitting quantum‐dot light‐emitting diodes (TE‐QLEDs), including device architectures, microcavity engineering, angular‐emission management, and operational stability, highlighting optical–electrical–thermal co‐optimization as the key pathway toward reliable, high‐performance TE‐QLEDs. Abstract Top‐emitting
Chengyi Chen, Yuqi Liang, Mian Wei, Qiulei Xu, Huimin Zhang, Zhenghui Wu, Huaibin Shen   +6 more
wiley   +1 more source

Photocurable Smart Materials for Femtosecond Laser Micro/Nano‐3D/4D Printing: Toward Interdisciplinary Applications

Interdisciplinary Materials, EarlyView.
This review examines intelligent microsystems fabricated via Fs‐laser two‐photon polymerization, covering design, fabrication compatibility, and actuation methods. It highlights applications in actuators, sensors, micromachines, and soft microrobots, while stressing advances in materials, structures, and system integration.
Chang‐Xu Li, Yu‐Qing Liu, Wei‐Jian Zhong, Dong‐Dong Han, Yong‐Lai Zhang   +4 more
wiley   +1 more source

Cavity Design in Woodpile Based 3D Photonic Crystals

Applied Sciences, 2018
In this paper, we present a design of a three-dimensional (3D) photonic crystal (PhC) nanocavity based on an optimized woodpile structure. By carefully choosing the position of the defect at the lattice center, we can create a cavity with high symmetry ...
Xu Zheng, Mike P. C. Taverne, Ying-Lung D. Ho, John G. Rarity   +3 more
doaj   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Frequency splitting of polarization eigenmodes in microscopic Fabry–Perot cavities

New Journal of Physics, 2015
We study the frequency splitting of the polarization eigenmodes of the fundamental transverse mode in CO _2 laser-machined, high-finesse optical Fabry–Perot cavities and investigate the influence of the geometry of the cavity mirrors.
Manuel Uphoff, Manuel Brekenfeld, Gerhard Rempe, Stephan Ritter   +3 more
doaj   +1 more source

Extreme Optical Field Confinement and Enhancement in a Plasmonic Picopatch Within a Nanoparticle‐on‐Mirror Resonator

Laser &Photonics Reviews, EarlyView.
A picopatch in a plasmonic nanocavity confines the electromagnetic energy to tiny effective volumes, close to 1nm3, leading to extreme electric field enhancements. Furthermore, a clear signature of strong coupling between the picopatch modes and other modes of the structure is obtained, which strongly modifies the far‐field response. ABSTRACT Plasmonic
Jinna He, Mario Zapata‐Herrera, Xabier Arrieta, Mingli Wan, Yuan Zhang, Javier Aizpurua, Ruben Esteban   +6 more
wiley   +1 more source

A Nearly Perfect Implementation of a Broadband Optical Null Media via Space‐Folding

Laser &Photonics Reviews, EarlyView.
A space‐folding optical null medium with impedance‐matching layers enables broadband directional wave projection and wavefront engineering. By tailoring the folding ratio and dilution ratio, the structure maintains near‐unity transmittance over 5–9 GHz.
Yichao Liu, Jiale Li, Fei Sun, Qin Liao
wiley   +1 more source

Two-mirror resonator for next-generation Compton gamma-ray source

Physical Review Accelerators and Beams
The next-generation Compton gamma-ray sources (CGSs) based on storage rings require a high-power, well-focused laser beam as a photon driver, which can be realized using a Fabry-Perot cavity (FPC).
Will Delooze, Wei Li, Ying K. Wu
doaj   +1 more source