Results 41 to 50 of about 5,256,570 (379)
Valley photonic crystals [PDF]
Advances in Physics: X, 2021 Topological photonics is an emerging field that attracts enormous interest for its novel ways to engineer the flow of light. With the help of topological protection, the surface modes of topological photonic systems have intriguing properties, such as the unidirectional propagation, robust transmission against defects and disorders, which meet the ...
Jian-Wei Liu +6 more
openaire +3 more sources
Dynamics simulation of photonic crystal fiber end face polishing
Advances in Mechanical Engineering, 2017 The high quality of polished end face of photonic crystal fiber has a significant effect on coupling efficiency when photonic crystal fiber is used to couple with other optical devices. In order to obtain the smooth surface of the photonic crystal fiber,
Zhengqi Zhao +4 more
doaj +1 more source
Physical Review X, 2014 We introduce a new "universality class" of artificial optical media - photonic hyper-crystals. These hyperbolic metamaterials with periodic spatial variation of dielectric permittivity on subwavelength scale, combine the features of optical metamaterials and photonic crystals.
openaire +6 more sources
AIP Advances, 2017 We propose a scheme of unidirectional transmission in a 1D nonlinear topological photonic crystal based on the topological edge state and three order optical nonlinearity.
Chong Li +3 more
doaj +1 more source
Mechanically Tunable Negative-Index Photonic Crystal Lens
IEEE Photonics Journal, 2010 We report the microelectromechanical systems (MEMS)-enabled mechanically tunable negative-index photonic crystal lens, which was comprised of 2-D photonic crystal and symmetrical electro-thermal actuators. The 2-D photonic crystal was made of a honeycomb
Y. Cui, V. A. Tamma, J.-B. Lee, W. Park
doaj +1 more source
High quality factors and room-temperature lasing in a modified single-defect photonic crystal cavity [PDF]
, 2004 We propose and analyze a new photonic crystal cavity design that supports a dipole mode with a quality factor greater than 20,000. Such a high quality factor is obtained by precise tuning of the cavity length with minimal disruption of the surrounding ...
Hochberg, Michael +3 more
core +1 more source
Study of laser actions by bird’s feathers with photonic crystals
Scientific Reports, 2021 Random lasers had been made by some biomaterials as light scattering materials, but natural photonic crystals have been rarely reported as scattering materials.
Shih-Wen Chen +6 more
doaj +1 more source
Recent Progress in Photonic Crystal Devices and Their Applications: A Review
Photonics, 2023 The research field of photonic crystals (PhCs) remains active on a global scale. PhCs, which are periodic optical nanostructures with the characteristics of excellent light field confinement and numerous varying degrees of freedom, provide a solid ...
Rahul Kumar Gangwar +2 more
doaj +1 more source
Propagation of Light in Photonic Crystal Fibre Devices
, 2005 We describe a semi-analytical approach for three-dimensional analysis of photonic crystal fibre devices. The approach relies on modal transmission-line theory. We offer two examples illustrating the utilization of this approach in photonic crystal fibres:
Akbari M +18 more
core +1 more source
BioResources, 2023 The development of nanocellulose (CNCs) chiral liquid crystal photonic elastomeric vitrimer materials is promising for achieving needed reduction in carbon emissions (elastomer material recycling) and developing novel photonic functional materials.
Jinlong Zhang, Weiguo Li, Qinglin Wu
doaj +2 more sources