Subwavelength Imaging in Sub-THz Range Using Dielectric Waveguide by Paweł Komorowski, Przemysław Zagrajek, Mateusz Kaluza, Andrzej Kołodziejczyk, Sławomir Ertman, Adrianna Nieradka, Mateusz Surma, Agnieszka Siemion

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Decoherence-free many-body Hamiltonians in nonlinear waveguide quantum electrodynamics by Aviv Karnieli, Offek Tziperman, Charles Roques-Carmes, Shanhui Fan

“…Enhancing interactions in many-body quantum systems, while protecting them from environmental decoherence, is at the heart of many quantum technologies. Waveguide quantum electrodynamics is a promising platform for achieving this, as it hosts infinite-range interactions and decoherence-free subspaces of quantum emitters. …”
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A High-Order Compact 2D FDFD Method for Waveguides by Gang Zheng, Bing-Zhong Wang

“…A high-order compact two-dimensional finite-difference frequency-domain (2D FDFD) method is proposed for the analysis of the dispersion characteristics of waveguides. A surface impedance boundary condition (SIBC) for the high-order compact 2D FDFD method is also given to model lossy metal waveguides. …”
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Efficient optical parametric amplification in the thin film lithium niobate waveguides by Yuanqiang Peng, Shunxing Yang, RuiHuan Wu, Weiyi Hong

“…Abstract Prominent platforms based on thin-film lithium niobate (TFLN) are superior integrated-photonics platforms for efficient optical parametric amplification (OPA), however, previously few studies have been systematically reported the gain-boosting performance of TFLN waveguides compared to bulk LN waveguides. Here, we optimize two TFLN waveguides with dispersion engineering for high-efficiency and ultra-broadband gain of OPA, then report comparative results about the efficient ultra-broadband OPA of TFLN waveguides in the case of low loss, optimized waveguide length and pump power. …”
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Leaky Modes of Waveguides as a Classical Optics Analogy of Quantum Resonances by Sara Cruz y Cruz, Oscar Rosas-Ortiz

“…A classical optics waveguide structure is proposed to simulate resonances of short range one-dimensional potentials in quantum mechanics. …”
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Programmable quantum circuits in a large-scale photonic waveguide array by Yang Yang, Robert J. Chapman, Akram Youssry, Ben Haylock, Francesco Lenzini, Mirko Lobino, Alberto Peruzzo

“…Recently, there have been proposals for utilizing waveguide lattices to implement quantum gates, providing a more compact and robust solution compared to discrete implementation with directional couplers and phase shifters. …”
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Application of a Surface Waveguide in Microwave Drying Units of the Agribusiness Industry by Ekaterina Ritter, Alexey Savostin, Dmitry Ritter, Galina Savostina, Andrey Smirnov, Sayat Moldakhmetov

“…In this regard, the article proposes a new microwave irradiation technique for drying various objects based on a surface waveguide’s properties. The paper analyses the main links that make up the surface waveguide as a microwave irradiation system and shows the ways of their implementation. …”
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Development of ultrasonic waveguide — screw for external fixation device (Ilizarov apparatus) by D. A. Sedykh, А. А. Novikov, A. R. Putintseva, A. M. Badamshin

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Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics by Furkan Ayhan, Markus Ludwig, Tobias Herr, Victor Brasch, Luis Guillermo Villanueva

“…Here, we introduce a process for fabricating high-confinement lithium niobate waveguides with periodic poling. Our waveguide designs enable both third-order nonlinear χ(3) broadening and sum frequency generation (SFG) up to the fourth harmonic through a quasi-phase-matched χ(2) section. …”
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X-Band Waveguide Reflectionless Filtering Antenna Array With High Selectivity by Jun Ma, Fuchang Chen, Kairan Xiang

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Wideband Omnidirectional Slotted-Waveguide Antenna Array Based on Trapezoidal Slots by Hugo Rodrigues Dias Filgueiras, James R. Kelly, Pei Xiao, I. F. da Costa, Arismar Cerqueira Sodré

“…The trapezoidal section is formed by gradually increasing the slot length between the waveguide interior and exterior surfaces. In this way, a smoother impedance transition between waveguide and air is provided in order to enhance the array operating bandwidth. …”
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Picchi Debra, The Bakairí Indians of Brazil. Politics, Ecology, and Change, Waveland Press, Prospect Heights, Ill., 2000, 218 p. by Philippe Erikson

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A 60 GHz Planar Diplexer Based on Substrate Integrated Waveguide Technology by Nikolaos Athanasopoulos, Dimitrios Makris, Konstantinos Voudouris

“…This paper presents a millimeter-wave, 60 GHz frequency band planar diplexer based on substrate integrated waveguide (SIW) technology. Diplexer consists of a pair of 5th-order SIW bandpass channel filters with center frequencies at 59.8 GHz and 62.2 GHz providing 1.67% and 1.6% relative bandwidths, respectively. …”
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Design of the Monopulse Feeding Network for a Slotted Waveguide Array on an Annular Disk by Zongxin Wang, Yulan Wang, Shengchi Zhu, Peng Chen

“…The design details of some key waveguide components, such as the compact assembly of H-plane T-junctions and E-plane elbows used to connect power distribution networks and radiation waveguides, are provided. …”
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Experiment and Prediction of Ablation Depth in Excimer Laser Micromachining of Optical Polymer Waveguides by K. F. Tamrin, S. S. Zakariyah, K. M. A. Hossain, N. A. Sheikh

“…Among the manufacturing methods, UV laser ablation using an excimer laser has been repeatedly demonstrated as a suitable technique to fabricate multimode polymer waveguides. However, the main challenge is to precisely control and predict the topology of the waveguides without the need for extensive characterisation which is both time consuming and costly. …”
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An Efficient Semianalytical Modal Analysis of Rectangular Waveguides Containing Metamaterials with Graded Inhomogeneity by Qianru Weng, Qian Lin, Haifeng Wu

“…Rectangular waveguides containing inhomogeneous metamaterials with graded refractive-index profiles have potential applications in bending waveguides and radiation-enhanced antennas, and accurate eigenvalue solutions are prerequisite. …”
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Substrate Integrated Waveguide Leaky-Wave Antenna Conforming to Conical Shape Surface by W. N. Huang, Y. J. Cheng, H. Deng

“…A conical conformal leaky-wave antenna based on substrate integrated waveguide (SIW) technology is proposed and demonstrated in this paper. …”
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Radiation Pattern Reconfigurable Waveguide Slot Array Antenna Using Liquid Crystal by Hongyu Shi, Jianxing Li, Shitao Zhu, Anxue Zhang, Zhuo Xu

“…In this paper, we proposed a radiation pattern reconfigurable waveguide slot array antenna using liquid crystal (LC). …”
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Waveguide Propagation of Light in Polymer Porous Films Filled with Nematic Liquid Crystals by A. D. Kiselev, S. V. Pasechnik, D. V. Shmeliova, A. P. Chopik, D. A. Semerenko, A. V. Dubtsov

“…We theoretically analyze the waveguide regime of light propagation in a cylindrical pore of a polymer matrix filled with liquid crystals assuming that the effective radial optical anisotropy is biaxial. …”
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Six-wave interaction on resonant nonlinearity in a waveguide with infinitely conducting surfaces by Valery V. Ivakhnik, Darkhan R. Kapizov, Vladimir I. Nikonov

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