Author Correction: Analytical investigations of propagation of ultra-broad nonparaxial pulses in a birefringent optical waveguide by three computational ideas by Yuanyuan Liu, Jalil Manafian, Gurpreet Singh, Naief Alabed Alkader, Kottakkaran Sooppy Nisar

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Retraction Note: Analytical investigations of propagation of ultra-broad nonparaxial pulses in a birefringent optical waveguide by three computational ideas by Yuanyuan Liu, Jalil Manafian, Gurpreet Singh, Naief Alabed Alkader, Kottakkaran Sooppy Nisar

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A Comparative Study between Via-Hole and Via-Free Grounded Coplanar Waveguide to Microstrip Transitions on Thin Polymer Substrate by Mohammed El Gibari, HongWu Li

“…A comparative study between via-holed and via-free back-to-back GCPW-MS-GCPW (Grounded Coplanar Waveguide-Microstrip lines) transitions is reported in this paper. …”
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Design of a 324 MHz 200 kW CW Waveguide-to-Coaxial Adaptor for Radio Frequency Quadrupole Microwave System by Xinsheng Yan, Lianmin Zhao, Bojiang Ding, Weiye Xu, Hua Jia, Zege Wu, Fukun Liu

“…A 324 MHz 200 kW waveguide-to-coaxial adaptor has been designed and fabricated for a microwave coupler in a radio frequency quadrupole system. …”
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Power Transmission for Millimeter-Wave Indoor/Outdoor Wearable IoT Devices Using Grounded Coplanar Waveguide-Fed On-Body Antenna by Fuad Erman, Slawomir Koziel, Alhareth Zyoud, Leifur Leifsson, Ubaid Ullah, Shaker Alkaraki

“…The on-body antenna structure consists of rectangular multi-slot patch fed by a <inline-formula> <tex-math notation="LaTeX">$50~\Omega $ </tex-math></inline-formula> grounded coplanar waveguide (GCPW) line. Employing the multi-slot configuration results in a wearable antenna&#x2019;s impedance bandwidth of 3.73 GHz. …”
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RETRACTED ARTICLE: Analytical investigations of propagation of ultra-broad nonparaxial pulses in a birefringent optical waveguide by three computational ideas by Yuanyuan Liu, Jalil Manafian, Gurpreet Singh, Naief Alabed Alkader, Kottakkaran Sooppy Nisar

“…The nonparaxial solitons with the propagation of ultra-broad nonparaxial pulses in a birefringent optical waveguide is studied. To attain this, an illustrative case of the coupled nonlinear Helmholtz (CNLH) system is given to illustrate the possibility and unwavering quality of the strategy utilized in this research. …”
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Enhancing Terahertz Absorption Spectrum Based on a Tunable Defect Cavity of One-Dimensional Photonic Crystal in the Combined Coaxial Waveguide by Lu Nie, Xiangjun Li, Dongzhe Chen, Zihao Wang, Dexian Yan

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Description of Dispersive Wave Emission and Supercontinuum Generation in Silicon Waveguides Using Split-Step Fourier and Runge-Kutta Integration Methods by Xuefeng Li

“…Based on solving numerically the generalized nonlinear Schrödinger equation describing the propagation of high order femtosecond soliton in silicon waveguide under certain parametric conditions by the split-step Fourier and Runge-Kutta integration methods, dispersive wave emission and supercontinuum generation in silicon waveguides are numerically investigated by propagating femtosecond solitons. …”
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A Metallo-Dielectric Groove Gap Waveguide Slotted Array Antenna With Hybrid Glide-Symmetric Holes &#x0026; &#x201C;Mushroom&#x201D;-Type Metasurfaces by Panagiotis Petroutsos, Stavros Koulouridis

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Open-ended microwave oven with E-field uniformity by Jeong-Hun Park, Jee-Won Kim, Moon-Que Lee

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Comparison of Photonic to Plasmonic Mode Converters for Plasmonic Multiple-Input Devices by Samantha Lubaba Noor, Francky Catthoor, Dennis Lin, Pol Van Dorpe, Azad Naeemi

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Author Correction: Ultra-broadband all-optical nonlinear activation function enabled by MoTe2/optical waveguide integrated devices by Chenduan Chen, Zhan Yang, Tao Wang, Yalun Wang, Kai Gao, Jiajia Wu, Jun Wang, Jianrong Qiu, Dezhi Tan

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Cross-talk-free, high extinction ratio, and ultra-compact all‑optical 4 × 2 encoder using graphene-based plasmonic waveguides by Saima Kanwal, Mohammed R. Saeed, Faris K. AL-Shammri, Mir Hamid Rezaei

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A New Dual Circularly Polarized Feed Employing a Dielectric Cylinder-Loaded Circular Waveguide Open End Fed by Crossed Dipoles by Jae-Hoon Bang, Soon-Woo Choi, Jae-Woo Noh, Joo-Young Lim, Dong-Hyun Kim, Dae-Oh Kim, Bierng-Chearl Ahn

“…The waveguide aperture is loaded with a dielectric cylinder to reduce the cross-polarization beyond 90 degrees off the boresight. …”
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Continuous tunability of refractive index contrast in LiNbO3 optical waveguides fabricated by high-vacuum vapor-phase proton exchange by Mihnea Raoul Sandu, Alicia Petronela Rambu, Laura Hrostea, Sorin Tascu

“…This paper presents a simple and reliable method allowing well-controlled index contrast tunability between high-index contrast (Δn e  = 0.1) and low-index contrast (Δn e  = 0.035) while benefiting from the optical nonlinearity of LiNbO3 waveguides fabricated using HiVac-VPE technique. The study involves both planar and channel lithium niobate waveguides. …”
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Šolc-Type Wavelength Filters Based on TE↔TM Mode Conversion Utilizing Periodically Poled Ti-Diffused Lithium Niobate Channel Waveguides by Hongsik Jung

“…We have demonstrated the Šolc-type wavelength filters in a 52 mm long periodically poled Ti-diffused lithium niobate channel waveguide which has a domain period of 16.6 μm. At room temperature, the center wavelength and the full-width at half maximum of the filter were about 1272.49 nm and 0.23 nm, respectively. …”
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Dual-Frequency Miniaturized Substrate Integrated Waveguide Quarter-Mode Cavity-Backed Antenna Based on Minkowski Fractal Gap with Orthogonal Polarization Radiation Characteristics by Zihao Fu, Tianliang Zhang, You Lan, Tianhai Wu, Wenxing Huang, Leilei He

“…A novel quarter-mode substrate integrated waveguide miniaturized cavity-backed antenna loading Minkowski fractal gap is presented in this paper. …”
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Excitation of ULF, ELF, and VLF Resonator and Waveguide Oscillations in the Earth–Atmosphere–Ionosphere System by Lightning Current Sources Connected with Hunga Tonga Volcano Eruption by Yuriy G. Rapoport, Volodymyr V. Grimalsky, Andrzej Krankowski, Asen Grytsai, Sergei S. Petrishchevskii, Leszek Błaszkiewicz, Chieh-Hung Chen

“…VLF propagation is possible over distances of 3000–10,000 km in the waveguide Earth–ionosphere. The results of simulations are compared with the published experimental data.…”
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Adiabaticity Engineered Silicon Coupler With Design-Intended Splitting Ratio by Chih-Hsien Chen, Yu-Fang Lo, Guan-Xun Lu, Yung-Jr Hung, Shuo-Yen Tseng

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Four Central Nanocavity of Ultra-Sensitive Refractive Index Biosensor for Cancer Detection in Hexagonal Photonic Crystal by William Matsui, Jianqiao Fang

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