Results 11 to 20 of about 28,040 (170)

Fluorescent Bulk Waveguide Sensor in Porous Glass: Concept, Fabrication, and Testing

Nanomaterials, 2020
In this work, we suggest the new concept of sensing elements—bulk waveguides (BWGs) fabricated by the laser direct writing technique inside porous glass (PG).
Zhong Lijing, Roman A. Zakoldaev, Maksim M. Sergeev, Vadim P. Veiko   +3 more
doaj   +1 more source

COMPACT POLARIZATION PLANE ROTATOR AT A DEFINED ANGLE IN THE SQUARE WAVEGUIDE [PDF]

Радиофизика и электроника, 2017
We have studied the possibility of designing compact polarization plane rotator electromagnetic waves on the basis of the structures with dihedral symmetry, and formed by 5-resonant slotted apertures with rectangular irises. The proposed structure allows
D. Yu. Kulik, S. A. Steshenko, A. A. Kirilenko   +2 more
doaj   +1 more source

Effective Size Reduction of the Metallic Waveguide Bandpass Filter with Metamaterial Resonators and Its 3D-Printed Version

Sensors, 2023
In this paper, a novel method is proposed to effectively reduce the size of a waveguide bandpass filter (BPF). Because the metallic cavities make the conventional waveguide end up with a large geometry, especially for high-order BPFs, very compact ...
Junghyun Cho, Yejune Seo, Jihaeng Cho, Kyoung Youl Park, Joongki Park, Hosub Lee, Sungtek Kahng   +6 more
doaj   +1 more source

Recent Advances in Optical Hydrogen Sensor including Use of Metal and Metal Alloys: A Review

Photonics, 2023
Optical sensing technologies for hydrogen monitoring are of increasing importance in connection with the development and expanded use of hydrogen and for transition to the hydrogen economy.
Akhilesh Kumar Pathak, Sneha Verma, Natsima Sakda, Charusluk Viphavakit, Ratchapak Chitaree, B. M. Azizur Rahman   +5 more
doaj   +1 more source

A New Class of Dual-Band Waveguide Filters Based on Chebyshev Polynomials of the Second Kind

IEEE Access, 2020
This paper presents for the first time a method of mathematical synthesis involving chaining of Chebyshev polynomials of the second kind for the application of a dual-band waveguide filter. This method takes advantage of second kind Chebyshev polynomials
Yuhao Leong, Sovuthy Cheab, Socheatra Soeung, Peng Wen Wong   +3 more
doaj   +1 more source

Development of High Refractive Index Polydimethylsiloxane Waveguides Doped with Benzophenone via Solvent-Free Fabrication for Biomedical Pressure Sensing

Photonics, 2022
We present the fabrication and characterization of elastomeric optical waveguides, to be used for the manufacture of a conformable, water-resistant, and cost-effective pressure sensor that is amenable to the development of smart wearable health ...
Koffi Novignon Amouzou, Alberto Alonso Romero, Dipankar Sengupta, Satyendra Kumar Mishra, Andréane Richard-Denis, Jean-Marc Mac-Thiong, Yvan Petit, Jean-Marc Lina, Bora Ung   +8 more
doaj   +1 more source

Features of planar metal/dielectric nanowaveguides

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2020
Results of analysis focused on dielectric/metal/dielectric and metal/dielectric/ metal symmetric nanowaveguides have been presented. The waveguides based on gold, silver and aluminum have been studied.
V.M. Fitio, А.V. Bendziak, I.Ya. Yaremchuk, Ya.V. Bobitski   +3 more
doaj   +1 more source

Magnetic-Optic Effect-Based Topological State: Realization and Application

Frontiers in Materials, 2022
The topological state in photonics was first realized based on the magnetic-optic (MO) effect and developed rapidly in recent years. This review summarizes various topological states.
Xinyue Wang, Xinyue Wang, Wen Zhao, Wen Zhao, Hongyu Zhang, Hongyu Zhang, Sayed Elshahat, Sayed Elshahat, Cuicui Lu, Cuicui Lu, Cuicui Lu   +10 more
doaj   +1 more source

AMoRE: Additive Manufacturing of RIS Elements

IEEE Access
A deep investigation of Reconfigurable Intelligent Surfaces (RIS) and Holographic MIMO (H-MIMO) surfaces in 5G and beyond systems requires numerous tests with various prototypes.
Andrey Tyarin, Kirill Glinskiy, Roman Zlobin, Aleksey Kureev, Evgeny Khorov   +4 more
doaj   +1 more source

Near-Infrared Sub-Bandgap All-Silicon Photodetectors: State of the Art and Perspectives

Sensors, 2010
Due to recent breakthroughs, silicon photonics is now the most active discipline within the field of integrated optics and, at the same time, a present reality with commercial products available on the market.
Luigi Sirleto, Ivo Rendina, Maurizio Casalino, Mario Iodice, Giuseppe Coppola   +4 more
doaj   +1 more source