An accurate model based on Floquet-Bloch theory is established to analyze periodically modulated graphene waveguides in time and space. This model is applied to a typical spatiotemporally modulated graphene waveguide ...
详细信息
An itinerant optomechnical system is introduced using silicon-on-sapphire platform. By selecting different input configurations, efficient bidirectional microwave-to-optical conversion can be achieved, opening a new p...
详细信息
In this work, a novel netlist compaction methodology was proposed and exploited as to speed-up the power integrity simulations of mixed signal SoC. The proposed methodology surpasses the time-domain non-linear simulat...
详细信息
Self-hybridized exciton-polaritons in solid-state systems are interesting as they overcome the limitations of hybrid integration. Here, we present the design and experimental demonstration of self-hybridized quasi-bou...
详细信息
Unmanned aerial vehicles (UAVs) equipped with full-duplex relays (FDRs) are pivotal in overcoming connectivity challenges by dynamically establishing effective communication channels. However, despite their potential ...
详细信息
We propose an all-silicon metasurface doublet that performs imaging in the mid-infrared only along a predefined light propagation direction. As a second application, we optimize two metasurfaces to perform imaging onl...
详细信息
This work addresses crosstalk effects on three low noise amplifiers (LNAs) operating at different frequency bands, the S-band (2.4 GHz), the Ka-band (28 GHz), and the V-band (56 GHz). The LNAs were implemented using a...
详细信息
The piezoelectricity of group-IV monochalcogenides (MXs, with M=Ge,Sn and X=S,Se) has attracted much attention due to their substantially higher piezoelectric coefficients compared to other 2D materials. However, with...
详细信息
The piezoelectricity of group-IV monochalcogenides (MXs, with M=Ge,Sn and X=S,Se) has attracted much attention due to their substantially higher piezoelectric coefficients compared to other 2D materials. However, with increasing layer number, their piezoelectricity rapidly disappears due to the antiferroelectric stacking order, severely limiting their practical applications. Using first-principles calculations, we investigated the piezoelectricity of MXs with the ferroelectric AA stacking configuration, which has recently been stabilized in experiments. We found that AA-stacked MXs have a ferroelectric ground state with the smallest lattice constant among other stacking configurations, resulting in a giant piezoelectric coefficient, which is the first demonstration of a strategy where the piezoelectric coefficients can increase with the number of layers. This can be attributed to a strong negative correlation between the lattice constant along the armchair direction and the piezoelectric coefficient, and spontaneous compressive strain stabilized in ferroelectric AA stacking configuration.
In this study, we propose an optimization strategy for designing efficient rectennas for harvesting infrared (IR) energy. The rectenna is primarily composed of a rectifying component, such as a diode, and an antenna. ...
详细信息
Chaotic image encryption has been investigated extensively in the literature in different domains, including the frequency domain using Discrete Fourier Transform (DFT). Despite DFT-based chaotic image cryptosystems e...
详细信息
暂无评论