Results 41 to 50 of about 12,820 (148)

Numerical Verification of a Polarization-Insensitive Electrically Tunable Far Infrared Band-Stop Meta-Surface Filter

Photonics
Tunable filters have many potential applications in diverse fields, including high-capacity communications, dynamic beam shaping and spectral imaging. Although providing a high-performance solution for actively tunable devices, metasurface combined with ...
Zheng Li, Yuying Lu, Yichi Han, Hanjie Li, Zhenqi Niu, Xiaomin Liu, Chaoyang Wei, Jianda Shao   +7 more
doaj   +1 more source

Structural Color Filters Enabled by a Dielectric Metasurface Incorporating Hydrogenated Amorphous Silicon Nanodisks

Scientific Reports, 2017
It is advantageous to construct a dielectric metasurface in silicon due to its compatibility with cost-effective, mature processes for complementary metal-oxide-semiconductor devices.
Chul-Soon Park, Vivek Raj Shrestha, Wenjing Yue, Song Gao, Sang-Shin Lee, Eun-Soo Kim, Duk-Yong Choi   +6 more
doaj   +1 more source

Nanophotonic Bragg grating assisted Mach–Zehnder interferometers for O-band add-drop filters

Scientific Reports
Spectral filters are fundamental building blocks in integrated photonics. Bragg grating filters have been demonstrated in silicon waveguides with a wide range of spectral responses and are suitable for wavelength division multiplexing applications ...
Alejandro Fernández-Hinestrosa, José Manuel Luque-González, Pavel Cheben, Jens H. Schmid, Shurui Wang, J. Gonzalo Wangüemert-Pérez, Iñigo Molina-Fernández, Alejandro Ortega-Moñux   +7 more
doaj   +1 more source

Wideband Dual-Polarized Filtering Antennas Using Short-Circuited Coupling Structure for 4G/5G Multi-Input-Multi-Output (MIMO) Antenna Decoupling Design

Photonics
A short-circuited coupling structure (SCCS) is proposed to obtain a gain-filtering response for dual-polarized antennas. A conventional dipole is designed with two intrinsic radiation nulls.
Haitao Song, Feifei Zhang, Baoxing Duan
doaj   +1 more source

Differentially Fed, Wideband Dual-Polarized Filtering Dielectric Resonator Patch Antenna Using a Sequentially Rotated Shorting Coupling Structure

Photonics
A wideband dual-polarized dielectric resonator antenna (DRA) with gain-filtering response was proposed in this paper. First, a differentially fed, low-profile crossed-DRA was used to obtain orthogonal polarizations with two resonant modes.
Haitao Song, Baoxing Duan, Feifei Zhang
doaj   +1 more source

Broadband Near-Infrared Reflective Film from Stacked Opposite-Handed Chiral Liquid Crystals with Pitch Gradients

Crystals
Broadband near-infrared (NIR) reflective films are widely used in architecture and the automotive and aerospace industries for energy saving and thermal regulation.
Hyeon Seong Hwang, Jongsu Lee, Byungsoo Kang, Minhye Kim, Doyo Kim, Se-Um Kim   +5 more
doaj   +1 more source

Chain-type multi-mode polarization-sensitive metamaterial absorber in infrared band

Results in Physics
Polarized light, abundant in material information, necessitates perfect broadband absorption by metamaterial absorbers across extensive angular ranges for applications in electromagnetic stealth and polarization filtering.
Xinyu Wang, Zhongzhu Liang, Fuming Yang, Xiaoyan Shi, Jinhuan Li, Yongjun Dong, Weizhen Liu, Yan Jia, Wenwen Sun, Zhe Wu, Xiangtao Chen, Siyu Guo   +11 more
doaj   +1 more source

Wavelength filtering in integrated optofluidic devices [PDF]

SPIE Newsroom, 2007
openaire   +1 more source

Dual-ribbon grating resonance modes: a survey based on diffraction orders

Scientific Reports
Adjustable resonant peaks are necessary for high-precision photonic devices in biosensing, filtering, and optical communication. In this study, we focus on dual-ribbon two-dimensional gold gratings with varying periods and examine the Rayleigh conditions
Mahdieh Hashemi, Zohreh Keshavarz, Maryam Moradi, Narges Ansari   +3 more
doaj   +1 more source

Design of Planar Multilayer Devices for Optical Filtering Using Surrogate Model Based on Artificial Neural Network

Optics
Artificial intelligence paradigms hold significant potential to advance nanophotonics. This study presents a novel approach to designing a plasmonic absorber using an artificial neural network as a surrogate model in conjunction with a genetic algorithm.
Davi F. Rêgo, Fabrício G. S. Silva, Rodrigo C. Gusmão, Vitaly F. Rodriguez-Esquerre   +3 more
doaj   +1 more source