Results 31 to 40 of about 71,505 (298)

Thermal Excitation of Broadband and Long-range Surface Waves on SiO 2 Submicron Films

open access: yes, 2017
We detect thermally excited surfaces waves on a submicron SiO 2 layer, including Zenneck and guided modes in addition to Surface Phonon Polaritons. The measurements show the existence of these hybrid thermal-electromagnetic waves from near-(2.7 $\mu$m ...
Agranovich V. M.   +7 more
core   +3 more sources

Millimeter-wave detection of landmines

open access: yesSPIE Proceedings, 2013
Millimeter wave absorption relative to background soil can be used for detection landmines with little or no metal content. At these frequencies, soil and landmine absorb electromagnetic energy differently. Stepped frequency measurements from 20 GHz to 60 GHz were used to detect buried surrogate landmines in the soil.
Ozturk, Hilmi   +6 more
openaire   +3 more sources

Millimeter-wave diode-grid phase shifters [PDF]

open access: yes, 1988
Monolithic diode grids have been fabricated on 2-cm square gallium-arsenide wafers with 1600 Schottky-barrier varactor diodes. Shorted diodes are detected with a liquid-crystal technique, and the bad diodes are removed with an ultrasonic probe.
Chen, Howard Z.   +5 more
core   +1 more source

A Multi-Layer Spoof Surface Plasmon Polariton Waveguide With Corrugated Ground

open access: yesIEEE Access, 2017
Due to the unique properties of field confinement and enhancement, spoof surface plasmon polaritons (SPPs) are considered as special modes to break many challenges in traditional electronic and microwave engineering.
Pei Hang He   +5 more
doaj   +1 more source

Optimal Constrained Wireless Emergency Network Antennae Placement [PDF]

open access: yes, 2018
With increasing number of mobile devices, newly introduced smart devices, and the Internet of things (IoT) sensors, the current microwave frequency spectrum is getting rapidly congested.
Gaikwad, Swapnil Mohan
core   +1 more source

Artificial intelligence with metasurfaces: from intelligent design to intelligent computing

open access: yesPhotoniX
The rapid development of artificial intelligence (AI) has revolutionized traditional design and optimization approaches for metamaterials. By leveraging AI techniques, the time required for the metamaterial design process is significantly reduced, thus ...
Qian Ma   +11 more
doaj   +1 more source

High-Order Modes Analysis of Complex Plasmonic Surface Using the Field-Network Joint Solution

open access: yesIEEE Access, 2019
The plasmonic surface is made of metallic surface with deep sub-wavelength decorations, which are designed to mimic the surface plasmon polaritons at lower frequency. Recently, high-order modes in some special structures are analyzed. In order to analyze
Yinjie Cui   +4 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +1 more source

Simplified radar architecture based on information metasurface

open access: yesNature Communications
Modern radar typically employs a chain radio-frequency (RF)-digital architecture, imposing high costs, substantial hardware burdens, and integration challenges. Here, we propose a simplified radar architecture based on space-time-coding (STC) information
Si Ran Wang   +12 more
doaj   +1 more source

Reconfigurable Mach–Zehnder interferometer for dynamic modulations of spoof surface plasmon polaritons

open access: yesNanophotonics, 2021
We propose an ultrathin reconfigurable Mach–Zehnder interferometer (MZI) for realizing dynamic frequency and amplitude modulations of spoof surface plasmon (SSP) signal.
Cui Wen Yi   +3 more
doaj   +1 more source

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