Theoretical and Experimental Results for Multipactor Effect in Groove Gap Waveguide Bandpass Filters With Inductive Coupling Irises by Alejandro Jorge-Lopez, Jose Joaquin Vague, Irene Asensio, Angela Coves, Angel Antonio San-Blas, Mariano Baquero-Escudero, Mariam Taroncher, Ana Vidal Pantaleoni, Vicente E. Boria

“…This article presents the theoretical study and experimental validation of the multipactor (MP) effect in bandpass filters implemented in groove gap waveguide (GGW) technology. Such filters are based on rectangular cavities and inductive coupling irises, whose optimized dimensions (widths and lengths) are fixed between rows of metal pins. …”
Get full text

Low-Loss Buried-Heterostructure Optical Waveguide Based on Impurity-Free-Vacancy-Diffusion Quantum Well Intermixing by Yang-Jeng Chen, Rih-You Chen, Chih-Hsien Chen, Yu-Hung Lin, Cong-Long Chen, Po-Yun Wang, Yen-Hsiang Chang, Yi-Jen Chiu

“…In addition, an electroabsorption modulator was also made by buried waveguide. A −10 dB low optical insertion loss and a 15 dB high extinction ratio in a 500 μm long waveguide were obtained, indicating that a buried heterostructure could be used for photonic devices and integration applications.…”
Get full text

TRANSMISSION OF THE SYMMETRIC WAVES THROUGH A BIANISOTROPIC-GYROTROPIC DIAPHRAGM IN THE CIRCULAR WAVEGUIDE WITH THE IMPEDANCE BOUNDARY CONDITIONS by V. T. Erofeenko, A. K. Sinitsyn

“…A technique for the solution of the boundary-value problem of transmission of partial symmetric E- and H-polarized waves of a circular regular waveguide that has a perfectly conducting boundary and contains an azimuthing symmetric inhomogeneous diaphragm made from bianisotropic-gyrotropic materials and with a impedance boundary conditions in region of diaphragm is developed. …”
Get full text

Design and fabrication of asymmetric Mach-Zehnder interferometers based on EpoClad and EpoCore strip waveguides by Magalhães Tiago E.C., Borme Jérôme, Douglas Temple, Maibohm Christian, Nieder Jana B.

“…In this work, we present a design optimization method and fabrication results by e-beam lithography for integrated asymmetric Mach-Zehnder interferometers based on strip waveguides made from EpoClad and EpoCore polymers. The operation wavelength was set to 650 nm. …”
Get full text

Broadband millimeter-wave metasurface antenna array with printed ridge gap waveguide for high front-to-back ratio by Hao Yi, Yajie Mu, Jiaqi Han, Long Li

“…To suppress the backward radiation of this antenna, the printed ridge gap waveguide (PRGW) technology with a perfect magnetic conductor (PMC) shielding made of mushroom unit-cells underneath the microstrip feeding line is applied. …”
Get full text

Design and Simulation of Optical Waveguide Digital Adjustable Delay Lines Based on Optical Switches and Archimedean Spiral Structures by Ting An, Limin Liu, Guizhou Lv, Chunhui Han, Yafeng Meng, Sai Zhu, Yuandong Niu, Yunfeng Jiang

“…The upper path passes through an ultralow-loss Archimedes’ spiral waveguide delay line made of silicon nitride, where the five spiral structures provide delays of 10 ps, 20 ps, 40 ps, 80 ps, and 160 ps, respectively. …”
Get full text

GYROTRONES WITH CONE-SHAPED RESONATORS by S. V. Kolosov, I. E. Zaitseva

“…This type of a resonator made it possible to achieve the level of efficiency of only 23 %, which can be increased in the regular-waveguide gyrothrons only through several modes or by recovering the electrons on the collector. …”
Get full text

Ultrahigh free-electron Kerr nonlinearity in all-semiconductor waveguides for all-optical nonlinear modulation of mid-infrared light by Gonzalo Álvarez-Pérez, Huatian Hu, Fangcheng Huang, Tadele Orbula Otomalo, Michele Ortolani, Cristian Ciracì

“…Finally, we demonstrate efficient nonlinear modulation of the transmittance spectrum of a Mach–Zehnder interferometer made of our all-semiconductor waveguides via the free-electron Kerr effect. …”
Get full text

An Extrinsic Optical Fiber Sensor Probe with Micrometer Size via a C-Shaped Waveguide with a Core of MIP by Chiara Marzano, Rosalba Pitruzzella, Francesco Arcadio, Filipa Sequeira, Luca Pasquale Renzullo, Alessandra Cutaia, Catarina Cardoso Novo, Ricardo Oliveira, Maria Pesavento, Luigi Zeni, Giancarla Alberti, Nunzio Cennamo, Rogerio Nunes Nogueira

“…Optical–chemical sensors based on optical fibers can be made in reflection or transmission schemes. In the reflection scheme, the sensing area is typically present at the end of the fiber, and the light source and the detector are placed on the same side of the fiber. …”
Get full text

Polarization Coupling of <inline-formula><tex-math notation="LaTeX">$X$</tex-math></inline-formula>-Cut Thin Film Lithium Niobate Based Waveguides by Jingyi Wang, Pengxin Chen, Daoxin Dai, Liu Liu

“…As LN is an anisotropic material, waveguides made on it exhibit different mode properties from those on conventional isotropic materials. …”
Get full text

Numerical Investigations of a Silicon Photonic TE-Pass Polarizer Consisting of Alternating Copper/Silicon Nitride Layers by Lei Chen, Han Ye, Yumin Liu, Dong Wu, Rui Ma, Zhongyuan Yu

“…We propose and investigate a silicon photonic TE-pass polarizer consisting of alternating layers made out of copper&#x002F;silicon nitride (Cu&#x002F;Si₃N₄). …”
Get full text

Direct Detection of Antibodies to <i>Yersinia pestis</i> Using Glass Microstructural Waveguides as an Express Method for Assessing Seroconversion in Individuals Vaccinated against... by O. M. Kudryavtseva, Yu. S. Skibina, V. A. Kozhevnikov, S. A. Bugorkova, M. V. Chainikov, А. Yu. Gryaznov, D. E. Glukhov, S. S. Konnova, A. A. Shuvalov, T. N. Shchukovskaya

“…The method of direct detection of antibodies using glass microstructural waveguides is promising for introduction into the list of express methods for assessing the immunological effectiveness of anti­plague vaccination.…”
Get full text

Nonlinear multimode photonics on-chip by Vitali Valerio, Bucio Thalía Domínguez, Liu Hao, Haines Jack, Naik Pooja Uday, Guasoni Massimiliano, Gardes Frederic, Pavesi Lorenzo, Cristiani Ilaria, Lacava Cosimo, Petropoulos Periklis

“…These achievements have also been made possible by the impressive progress in material engineering and fabrication processes, which have enabled a remarkable control of the nonlinear dynamics in the waveguides. …”
Get full text

Theory and simulations of few-photon Fock state pulses strongly interacting with a single qubit in a waveguide: Exact population dynamics and time-dependent spectra by Sofia Arranz Regidor, Andreas Knorr, Stephen Hughes

“…We present a detailed quantum theory and simulations of few-photon Fock state pulses interacting with a two-level system (TLS) in an open waveguide-QED system. For a rectangular pulse shape, we present an exact temporal scattering theory to derive analytical expressions for the TLS population, using one-photon and two-photon pulses, for both chiral and symmetric emitters. …”
Get full text

Gain Characteristics of Hybrid Waveguide Amplifiers in SiN Photonics Integration with Er-Yb:Al₂O₃ Thin Film by Ziming Dong, Guoqing Sun, Yuqing Zhao, Yaxin Wang, Lei Ding, Liqin Tang, Yigang Li

“…The realization of high gain in such integrated devices is made more challenging by the tight optical constraints. …”
Get full text

DESIGN AND SIMULATION PLASMONIC 2X1 MULTIPLEXER BASED ON ELLIPTICAL RING RESONATOR by Mohammed Sabah Talib, Faris al-Jaafiry

“…This research explores a new plasmonic multiplexer built with tiny ring-shaped waveguides made of insulator-metal-insulator IMI layers, and implemented using Finite Element Method FEM in a 2D format. …”
Get full text

Highly Efficient Graphene-Based Optical Modulator With Edge Plasmonic Effect by Ran Hao, Ziwei Ye, Xiliang Peng, Yijie Gu, JianYao Jiao, Haixia Zhu, Wei E. I. Sha, Erping Li

“…Geometry optimization is made to further investigate the enhancement mechanisms and modulation capacities. …”
Get full text

Determination of stresses and forces arising during the technological process of stretching small-section pipes through a roller die using a mandrel tool by V. V. Timofeev, E. V. Patraev, I. V. Trifanov

“…For the transmission of microwave energy and in various precision instruments, pipes with a small cross section are often used, which can be part of the waveguide paths of antenna-feeder devices of spacecraft. …”
Get full text

PROTOTYPING OF MICROWAVE DEVICES WITH SPECIFIED ELECTRODYNAMIC CHARACTERISTICS USING ADDITIVE 3D PRINTING TECHNOLOGY by S. V. Kharalgin, G. V. Kulikov, A. B. Kotelnikov, M. V. Snastin, E. M. Dobychina

“…The characteristics of microwave devices made by 3D printing technology were investigated. …”
Get full text

On the Use of a Complex Indicator of the Stability of Permutation Entropy of Time Series Fragments When Analyzing Infrasound Monitoring Signals of the Altai Republic by Kudryavtsev Nikolay, Frolov Ivan, Safonova Varvara

Get full text