Results 21 to 30 of about 286,146 (264)
IEEE Photonics Journal, 2019 We proposed a new type of transverse electric (TE) polarized mode-order converter based on a deeply-etched polygonal slot on a silicon-on-insulator waveguide.
Lijun Hao +7 more
doaj +1 more source
An alternative method to mimic mode conversion for ion cyclotron resonance heating
Nuclear Fusion, 2023 Ion cyclotron range of frequency waves in hot plasmas exhibit spatial dispersion effects and the wave equation takes the integro-differential form. Under the local plasma model assumption, the wave equation can be simplified to the differential form and ...
J.H. Zhang +4 more
doaj +1 more source
Sensors, 2023 Optimization of the structure of piezoelectric transducers such as the proper design of matching layers can increase maximum wave energy transmission to the host structure and transducer sensitivity.
Mikhail V. Golub +3 more
doaj +1 more source
Research on the Driving Mode Conversion for CBTC System Based onTrain-to-train Communication
Kongzhi Yu Xinxi Jishu, 2021 Unattended operation CBTC (communication based train control) system based on train-to-train communication is the main research direction of the next generation urban rail transit train control system, which provides a various of driving modes. According
ZHENG Yi, SHEN Tao, SUN Ye, SUN Ke
doaj
Localization of Ultra-Low Frequency Waves in Multi-Ion Plasmas of the Planetary Magnetosphere [PDF]
Journal of Astronomy and Space Sciences, 2015 By adopting a 2D time-dependent wave code, we investigate how mode-converted waves at the Ion-Ion Hybrid (IIH) resonance and compressional waves propagate in 2D density structures with a wide range of field-aligned wavenumbers to background magnetic ...
Eun-Hwa Kim +2 more
doaj +1 more source
Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate
Photonics, 2022 In this work, we propose a mode-conversion-based chirped Bragg grating on thin-film lithium niobate (TFLN). The device is mainly composed of a 4.7-mm long chirped asymmetric Bragg grating and an adiabatic directional coupler (ADC).
Donghe Tu +6 more
doaj +1 more source
Mode conversion in the cochlea? [PDF]
Transactions of Mathematics and Its Applications, 2017 The cochlea is the part of the ear where sound is analysed into frequencies. It is partitioned into two channels by a flexible membrane, whose effective density varies little along the length but whose stiffness reduces by a factor 104 from base to apex.
openaire +2 more sources
Applied Sciences, 2019 When working in humid environments, corrosion defects are easily produced in metallic plates. For defect detection in underwater plates, symmetric modes of Lamb waves are widely used because of their characteristics including long propagating distance ...
Qingnan Xie, Chenyin Ni, Zhonghua Shen
doaj +1 more source
High efficiency in mode-selective frequency conversion [PDF]
Optics Letters, 2016 Frequency conversion (FC) is an enabling process in many quantum information protocols. Recently, it has been observed that upconversion efficiencies in single-photon, mode-selective FC are limited to around 80%.In this letter we argue that these limits can be understood as time-ordering corrections (TOCs) that modify the joint conversion amplitude of ...
Quesada, Nicolás, Sipe, J. E.
openaire +3 more sources
Orbital Angular Momentum Divider of Light
IEEE Photonics Journal, 2017 Manipulation of orbital angular momentum (OAM) of light is essential in OAM-based optical systems. In particular, the OAM divider, which can convert the incoming OAM mode into one or several new smaller modes in proportion at different spatial paths, is ...
Hailong Zhou +6 more
doaj +1 more source