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Empowering Particle Jamming Soft Gripper with Tactility via Stretchable Optoelectronic Sensing Skin
Published 2025-01-01“…The gripper consists of two tactile sensing particle jamming pads (TSPJPs) that are integrated with flexible optoelectronic skins. These skins are made of silicone rubber membranes and are embedded with a 3 × 3 array of stretchable optical waveguide arrays (SOWAs). …”
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42
Numerical and Experimental Analysis of On-Chip Optical Wireless Links in Presence of Obstacles
Published 2021-01-01“…This work focuses on the relationship between the received signal and the position of the obstacles on the circuit plane in a multilayered channel made of heterogeneous dielectric cladding. We show how the crossing waveguide perturbates the received power and we provide ad hoc guidelines for the best topological choices allowing to mitigate losses. …”
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43
Grating Coupler Design for Low-Cost Fabrication in Amorphous Silicon Photonic Integrated Circuits
Published 2024-08-01“…The coupling scheme considers a 220 nm a-Si:H waveguide and an SMF-28 optical fiber.…”
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Easy-to-Fabricate High-Gain Linearly Polarized Antenna With Tunable Beam Pattern
Published 2025-01-01“…This paper presents an easy-to-fabricate, high-gain, linearly polarized antenna using a circular ground plane. The ground plane is made of a dielectric substrate sandwiched by two conductive sheets placed on the open end of a standard rectangular open-ended waveguide (OEWG). …”
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46
Fluxgate Magnetometers Based on New Physical Principles
Published 2025-06-01“…The authors analyze how the alternating electric charge potential of a cylindrical metal electrode impacts the structure of a cylindrical permanent magnet made of composite-conducting ferrite. They demonstrate that this impact and permanent magnet structure initiate the emergence of polarons with oscillating magnetism. …”
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47
Intensification of the process of equal channel angular pressing using ultrasonic vibrations
Published 2024-12-01“…The authors have developed an original device of ultrasonic ECAP, in which the waveguide with the matrix are made as a single unit, and the waveguide fastening elements are located in the nodal plane of mechanical displacements of the standing wave, the excitation of which occurs directly in the matrix and the blank during pressing. …”
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48
Powerful high-orbit gyro-TWT
Published 2021-08-01“…A twofold increase in the waveguide length made it possible to increase the lamp gain. …”
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49
Highly directional single-photon source
Published 2023-07-01“…Photons are preferentially emitted along the waveguide near that spectral region. We predict that nearly all of the emission can be made to occur along the waveguide with a reduction in the temporal uncertainty by two orders of magnitude. …”
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50
Quasiperiodic Dielectric Gratings for Multiband Fiber-To-Chip Couplers
Published 2020-01-01“…Herein, we present the design of a quasi-periodic grating coupler with multiband fiber-to-waveguide (waveguide-to-fiber) coupling response, where the grating consists of a periodic repetition of unit cells made of alternating silicon and air grooves according to the Fibonacci sequence. …”
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51
Temperature properties of microwave generator modules
Published 2019-06-01“…It's made an analysis of the temperature effect on the frequency instability of a generator made on the basis of a metal waveguide. …”
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Design and Fabrication of 1 × 2 Nanophotonic Switch
Published 2010-01-01“…Three types of simulations have been done in order to realize the photonic T-junction, and they are as follows: photonic crystal structures, waveguide made out of PMMA, and a silicon waveguide.…”
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On PT Symmetry Systems: Invariance, Conservation Laws, and Reductions
Published 2014-01-01“…An analysis of a PT symmetric coupler with “gain in one waveguide and loss in another” is made; a transformation in the PT system and some assumptions results in a scalar cubic Schrödinger equation. …”
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54
Satellite and ground-based observations of Pc1 pulsations during a magnetic storm in March 2023
Published 2025-06-01“…We have analyzed electromagnetic ion-cyclotron oscillations of the Pc1 range (~1 Hz) recorded during the recovery phase of the March 25, 2023 magnetic storm at the network of ground stations in the Far East and at low-orbit SWARM satellites passing over the stations. The collected data made it possible to trace propagation of Pc1 waves through the ionosphere to Earth’s surface and along the ionosphere. …”
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X-Band Dielectric Rod Antenna With Pre-Select Bandpass Filter
Published 2025-01-01“…All sections of the pre-select frequency antenna are made to WR-90 standard waveguide dimensions, and prototypes of the antenna and pre-select frequency antenna have been built and measured. …”
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MWIR narrowband filter based on guided-mode resonance subwavelength structure
Published 2025-06-01“…The filter is designed with a single layer of slab waveguide decorated with ariy layer of gold grating arrays. …”
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High Sensitivity Refractive Index Sensor Based on Trapezoidal Subwavelength Grating Slot Microring Resonator
Published 2023-01-01“…Here, we propose a high sensitivity refractive index sensor based on a slotted silicon ring resonator, of which the inner and outer rings are made of a deformed subwavelength grating (SWG) waveguide of trapezoidal dielectric blocks and a standard SWG waveguide of rectangular ones, respectively. …”
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E-Band Beam-Steerable and Scalable Phased Antenna Array for 5G Access Point
Published 2018-01-01“…The antenna consists of a rectangular waveguide feed network, waveguide-to-PCB transitions, phase shifters on a PCB, and horn antenna radiating elements. …”
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Devices for measurement of the NO2 concentration in the air by means of surface acoustic waves
Published 2014-01-01“…The development of techniques concerning macromolecular compounds have made it possible to get thin layers which change their physico-chemical properties in result of their interaction with the ambient atmosphere. …”
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Gyro-TWT Frequency Multiplier
Published 2024-06-01“…Calculations of the optimal designs of gyrotron traveling wave tubes (gyro-TWTs), presented in the article, were carried out using the Gyro-K computer program using a coordinate transformation technique, which made it possible to significantly reduce the calculation time of gyroresonance devices by reducing the three-dimensional problem of excitation of an irregular waveguide to a one-dimensional one. …”
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