Publications by authors named "Xuan Cong"
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.
Nanophotonics
January 2022
Article Synopsis
- Terahertz technology has seen rapid advancements in the last decade, particularly in areas like wireless communication and imaging, leading to the development of various devices such as filters and modulators.
- Terahertz phase modulation is a key focus of research, enabling flexible control of terahertz waves for applications in wireless communication, high-resolution imaging, and radar systems.
- This review examines progress in terahertz phase modulators, detailing both free space and guided wave integration methods, along with the impact of different tunable materials on their performance and future trends in the field.
