Results 81 to 90 of about 3,323 (241)

Directional spontaneous emission in photonic crystal slabs

Nanophotonics
Abstract Spontaneous emission is one of the most fundamental out‐of‐equilibrium processes in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. In this process, a photon is emitted that can interact with other nearby emitters and establish quantum correlations between them, e.g., via super and ...
Erik Navarro-Barón, Herbert Vinck-Posada, Alejandro González-Tudela   +2 more
openaire   +5 more sources

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Photonic crystal interfaces: a design-driven approach

, 2006
Photonic Crystal structures have been heralded as a disruptive technology for the miniaturization of opto-electronic devices, offering as they do the possibility of guiding and manipulating light in sub-micron scale waveguides.
Ayre, Melanie
core  

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Light‐Induced Dispersion of Pd Single Atoms Provides Steady‐State‐Stabilized Activity for Photocatalytic H2 Generation

Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.
High photon flux causes (re)distionpersion of atomic Pd species on TiO2 in photocatalytic experiments, whereas Pt SAs undergo continuous agglormation. This allows light‐driven stabilization of active Pd centers for sustained H2 evolution. ABSTRACT In recent years, the use of single atoms (SAs) has become increasingly significant in photocatalysis ...
Xin Zhou, Nikita Denisov, Ana S. Dobrota, Natalia V. Skorodumova, Igor A. Pašti, Hyesung Kim, Patrik Schmuki   +6 more
wiley   +2 more sources

Operation of an InAs quantum-dot embedded GaAs photonic crystal slab waveguide laser by using two-photon pumping for photonics integrated circuits

AIP Advances, 2016
The development of small sized laser operating above room temperature is important in the realization of optical integrated circuits. Recently, micro-lasers consisting of photonic crystals (PhCs) and whispering gallery mode cavities have been ...
H. Oda, A. Yamanaka, N. Ozaki, N. Ikeda, Y. Sugimoto   +4 more
doaj   +1 more source

Coupled Bilayer Photonic Crystal Slab Electro-Optic Spatial Light Modulators

IEEE Photonics Journal, 2017
We demonstrate here a surface-normal ultracompact Fano resonance electro-optic spatial light modulator employing a stacked photonic crystal membrane capacitor-like structure.
Yi-Chen Shuai, Deyin Zhao, Yonghao Liu, Corey Stambaugh, John Lawall, Weidong Zhou   +5 more
doaj   +1 more source

Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces

Laser &Photonics Reviews, EarlyView.
Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley   +1 more source

Cavity quantum electrodynamics with moiré photonic crystal nanocavity

Nature Communications
Due to the existence of flatbands within the band structure, twisting photonics introduces a possibility to enhance the interaction between excitons in single QDs and cavity photons because of the extremely high quality factor (Q) in theory. In this work,
Sai Yan, Hancong Li, Jingnan Yang, Xiqing Chen, Hanqing Liu, Deyan Dai, Rui Zhu, Zhikai Ma, Shushu Shi, Longlong Yang, Yu Yuan, Wenshuo Dai, Danjie Dai, Bowen Fu, Zhanchun Zuo, Haiqiao Ni, Zhichuan Niu, Can Wang, Kuijuan Jin, Qihuang Gong, Xiulai Xu   +20 more
doaj   +1 more source

Design and Numerical Evaluation of a Highly Selective CMOS-Compatible Mid-IR Thermal Emitter/Detector Structure Using Optical Tamm-States

Proceedings, 2018
In this work we propose and evaluate a concept for a selective thermal emitter suitable for monolithic on-chip integration suitable for fabrication by conventional CMOS-compatible processes. The concept is based on our recently presented work on vertical-
Gerald Pühringer, Bernhard Jakoby
doaj   +1 more source