Results 1 to 10 of about 14,587 (193)

Polarization conversion with a photonic crystal slab [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
We show that a photonic crystal slab can enable efficient polarization conversion. Two mechanisms are identified. The first mechanism relies on the anisotropy of the bulk properties of the metamaterial and is mediated by interferences.
Laroche Marine, Marquier François, Vandenbem Cédric, Greffet Jean-Jacques   +3 more
doaj   +6 more sources

Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab [PDF]

Scientific Reports, 2021
The photonic spin Hall effect (PSHE) can be realized in a photonic crystal (PC) slab, that is, the unidirectional Bloch surface wave can propagate along the surface of the PC slab under the excitation of elliptical polarized magnetic dipole.
Li-Ming Zhao, Yun-Song Zhou
doaj   +2 more sources

Quasi-guided modes resulting from the band folding effect in a photonic crystal slab for enhanced interactions of matters with free-space radiations [PDF]

Beilstein Journal of Nanotechnology, 2023
We elucidate that guided modes supported by a regular photonic crystal slab structure composed of a square lattice of air holes in a silicon slab will transition into quasi-guided (leaky) modes when the radius of every second column of air holes is ...
Kaili Sun, Yangjian Cai, Uriel Levy, Zhanghua Han   +3 more
doaj   +2 more sources

Automated optimization of photonic crystal slab cavities. [PDF]

Sci Rep, 2014
Thanks to their high quality factor, combined to the smallest modal volume, defect-cavities in photonic crystal slabs represent a promising, versatile tool for fundamental studies and applications in photonics. In paricular, the L3, H0, and H1 defects are the most popular and widespread cavity designs, due to their compactness, simplicity, and small ...
Minkov M, Savona V.
europepmc   +6 more sources

Numerical simulation of a novel bilayer photonic crystal slab biosensor with hexagonal lattice

Results in Physics, 2019
A new type of silicon-based bilayer photonic crystal slab biosensor is proposed based on the theoretical investigation of various parameters of two-dimensional photonic crystal slab on the peak wavelength and characteristics of the reflection spectrum ...
Daohan Ge, Jianpei Shi, Yuan Zhang, Liqiang Zhang, Ping Yang   +4 more
doaj   +3 more sources

Cavity quantum electrodynamics with moiré photonic crystal nanocavity [PDF]

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   +2 more sources

Vectorial lasing with designable topological charges based on Möbius-like correspondence in quasi-BICs [PDF]

Light: Science & Applications
The ability to control topological properties of laser emission represents a fundamental advancement in photonic technology. Achieving topological lasing in a single compact photonic structure is crucial for device integration and miniaturization, but ...
Xinhao Wang, Zhaochen Wu, Jiajun Wang, Lei Shi, Jian Zi   +4 more
doaj   +2 more sources

A Terahertz Circulator Based on Magneto Photonic Crystal Slab

Photonics, 2023
In this paper, a terahertz circulator based on a magneto photonic crystal slab is envisaged. The triangular lattice photonic crystals with a line defect waveguide were constructed on an Al2O3 ceramic slab.
Biaogang Xu, Dengguo Zhang, Yong Wang, Binbin Hong, Guoxiang Shu, Wenlong He   +5 more
doaj   +1 more source

Evolution of topological edge modes from honeycomb photonic crystals to triangular-lattice photonic crystals

Physical Review Research, 2021
The presence of edge modes at the interface of two perturbed honeycomb photonic crystals with C_{6} symmetry is often attributed to the different signs of Berry curvature at the K and K^{′} valleys.
Jin-Kyu Yang, Yongsop Hwang, Sang Soon Oh   +2 more
doaj   +1 more source

Observation of resonant states in negative refractive photonic crystals [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
In this paper, experimental evidences about the resonance phenomena in a negative 2D photonic crystal are shown. Localized plasmon-like modes and guided mode resonances are detected in the reflectivity spectrum of a photonic crystal slab irradiated with ...
Romano S., De Luca A. C., De Tommasi E., Cabrini S., Rendina I., Mocella V.   +5 more
doaj   +1 more source