Publications by authors named "Huajie Liang"
Article Synopsis
- High-speed logic modulation of terahertz (THz) waves is essential for future communication technologies, but there is a current gap in technology.
- This research introduces a dual gate-controlled metasurface that allows for independent control of electron transport, leading to multiple electronic states and diverse spectrum transformations.
- The study successfully implements key logical functions (AND, OR, XOR, XNOR, NOR, NAND) at speeds exceeding 250 picoseconds, offering a new method for fast, secure THz wave communication.
Article Synopsis
- Anisotropic metasurfaces allow for independent control of electromagnetic waves with different polarizations, providing new options for communication and imaging systems.
- The proposed dual-polarization modulation metasurface (DPMM) operates in the terahertz frequency range and can effectively modulate two orthogonally polarized waves using an anisotropic structure combined with GaN-based transistors.
- Simulation and experiments show that the DPMM achieves high modulation isolation (over 45 dB) and impressive speeds (over 2 GHz for dual polarization), making it a strong candidate for improving data capacity and throughput in THz technologies.
In this paper, we present a new type of isolator based on one-way surface magnetoplasmons (SMPs) at microwave frequencies, and it is the first time that an experimental prototype of isolator with wideband and ultra-high isolation is realized using SMP waveguide. The proposed model with gyromagnetic and dielectric layers is systematically analyzed to obtain the dispersion properties of all the possible modes, and a one-way SMP mode is found to have the unidirectional transmission property. In simulation and experiment with metallic waveguide loaded with yttrium-iron-garnet (YIG) ferrite, the scattering parameters and the field distributions agree well with the analysis and verify the one-way transmission property.
View Article and Find Full Text PDFTerahertz (THz) radiation has received much attention during the past few decades for its potential applications in various fields, such as spectroscopy, imaging, and wireless communications. To use terahertz waves for data transmission in different application systems, the efficient and rapid modulation of terahertz waves is required and has become an in-depth research topic. Since the turn of the century, research on metasurfaces has rapidly developed, and the scope of novel functions and operating frequency ranges has been substantially expanded, especially in the terahertz range.
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