Results 31 to 40 of about 190,146 (342)

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   +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, Lončar, Marko, Qiu, Yueming, Scherer, Axel   +3 more
core   +1 more source

Unidirectional transmission in 1D nonlinear photonic crystal based on topological phase reversal by optical nonlinearity

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, Xiaoyong Hu, Hong Yang, Qihuang Gong   +3 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, Akhilesh Kumar Pathak, Santosh Kumar   +2 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

Graphene-based photonic crystal

, 2010
A novel type of photonic crystal formed by embedding a periodic array of constituent stacks of alternating graphene and dielectric discs into a background dielectric medium is proposed.
Anton A. Kolesnikov, Berman, Berman, Berman, Castro Neto, Chigrin, Das Sarma, Eldada, Falkovsky, Falkovsky, Falkovsky, Gusynin, Gusynin, Joannopoulos, Joannopoulos, John, Katsnelson, Kechedzhi, Kuzmiak, Landau, Lozovik, Luk'yanchuk, McGurn, Nair, Nomura, Novoselov, Novoselov, Oleg L. Berman, Roman Ya. Kezerashvili, Taflove, Takeda, Takeda, Takeda, Tőke, Ulrich, Vladimir S. Boyko, Yablonovitch, Yurii E. Lozovik, Zhang, Zhang   +39 more
core   +1 more source

Multiple and colorful cone-shaped lasing induced by band-coupling in a 1D dual-periodic photonic crystal

AIP Advances, 2013
We demonstrate multiple and colorful cone-shaped lasing from dual-periodic photonic crystal, indicating that coupling occurs between the photonic bands in a photonic crystal laser system.
Cui-Feng Ying, Wen-Yuan Zhou, Yi Li, Qing Ye, Na Yang, Jian-Guo Tian   +5 more
doaj   +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, Jin-You Lu, Po-Han Tung, Ja-Hon Lin, Matteo Chiesa, Bing-Yi Hung, Thomas Chung-Kuang Yang   +6 more
doaj   +1 more source

General Recipe for Designing Photonic Crystal Cavities [PDF]

, 2005
We describe a general recipe for designing high-quality factor (Q) photonic crystal cavities with small mode volumes. We first derive a simple expression for out-of-plane losses in terms of the k-space distribution of the cavity mode.
Englund, Dirk, Fushman, Ilya, Vuckovic, Jelena   +2 more
core   +1 more source

Design of Chemically Recyclable Nanocellulose Chiral Liquid Crystal Photonic Elastomer Vitrimer and its Mechanosensitive Colour-changing Materials

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