Results 21 to 30 of about 790 (185)

All-Optical Bistability in Photonic Crystal Slabs with Coupled Cavity-waveguide Structure [PDF]

فیزیک کاربردی ایران, 2021
In this study, we consider a photonic crystal slab with a triangular lattice, which consists of air holes with a circular shape in a tellurium background on top of a Teflon substrate.
Taymaz Fathollahi-khalkhali
doaj   +1 more source

Effects of hydrostatic pressure on the photonic band structure and quality factor of an L3 cavity in a photonic crystal slab

Results in Physics, 2020
In this work, we investigate the effects of hydrostatic pressure on the photonic band structure and quality factor of the fundamental mode in an L3 cavity using the guided-mode expansion method in two-dimensional photonic crystal slabs.
Francis Segovia-Chaves, Herbert Vinck-Posada   +1 more
doaj   +1 more source

Pressure Sensing of Symmetric Defect Photonic Crystals Composed of Superconductor and Semiconductor in Low-Temperature Environment

Crystals, 2023
We theoretically investigate the defect mode transmittance of light waves in superconductor–semiconductor photonic crystals and its pressure-sensing dependence.
Haiyang Hu, Xiaoling Chen, Miaomiao Zhao, Liyan Wang, Ming Fang, Dong Zhao   +5 more
doaj   +1 more source

A Novel Method for Band Structure Analysis of Photonic Crystal Slabs

IEEE Photonics Journal, 2011
We propose a new method to extract the modes of photonic crystal slabs and, thus, obtain their band structures. These slabs, which are 2-D periodic structures with finite thickness, can completely confine light and have the important advantage of simple ...
S. A. H. Nekuee, M. Akbari, K. Mehrany
doaj   +1 more source

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

Simultaneous Guidance of Surface Acoustic and Surface Optical Waves in Phoxonic Crystal Slabs

Crystals, 2017
Phoxonic crystals, which exhibit simultaneous phononic and photonic bandgaps, are promising artificial materials for optomechanical and acousto-optical devices.
Tian-Xue Ma, Yue-Sheng Wang, Chuanzeng Zhang   +2 more
doaj   +1 more source

Measuring Photonics in Photosynthesis: Combined Micro-Fourier Image Spectroscopy and Pulse Amplitude Modulated Chlorophyll Fluorimetry at the Micrometre-Scale

Biomimetics, 2022
Natural photonic structures are common across the biological kingdoms, serving a diversity of functionalities. The study of implications of photonic structures in plants and other phototrophic organisms is still hampered by missing methodologies for ...
William P. Wardley, Johannes W. Goessling, Martin Lopez-Garcia   +2 more
doaj   +1 more source

1D photonic crystal filled with low-temperature plasma for controlling broadband microwave transmission

AIP Advances, 2019
A 1D plasma photonic crystal (PPC) is filled with plasmas and slab dielectrics in a large volume cylindrical glow discharge device. The parameters of the PPC are designed to meet the transmission condition of broadband microwave (1.5GHz-12GHz) according ...
Jingfeng Yao, Chengxun Yuan, Hui Li, Jian Wu, Ying Wang, Anatoly A. Kudryavtsev, Vladimir I. Demidov, Zhongxiang Zhou   +7 more
doaj   +1 more source

Polarization mixing, bound states in a continuum, and exciton-polaritons in photonic crystal slabs by a guided-mode expansion approach [PDF]

EPJ Web of Conferences
Photonic crystal (PhC) slabs, or patterned multilayer waveguides, are known to support truly guided modes with no losses, as well as quasi-guided modes that lie in the continuum of far-field radiation.
Zanotti Simone, Minkov Momchil, Nigro Davide, Gerace Dario, Fan Shanhui, Andreani Lucio Claudio   +5 more
doaj   +1 more source

All-polymer photonic crystal slab sensor

Optics Express, 2015
An all-polymer photonic crystal slab sensor is presented, and shown to exhibit narrow resonant reflection with a FWHM of less than 1 nm and a sensitivity of 31 nm/RIU when sensing media with refractive indices around that of water. This results in a detection limit of 4.5 × 10(-6) RIU when measured in conjunction with a spectrometer of 12 pm/pixel ...
Pétur G. Hermannsson, Kristian T. Sørensen, Christoph Vannahme, Cameron L.C. Smith, Jan J. Klein, Maria-Melanie Russew, Gabi Grützner, Ander   +7 more
openaire   +3 more sources